2014
Klamath Basin Potato Variety
Development Summary
Brian A. Charlton – Asst. Professor
Prepared December 2014 by:
Nichole A. Baley – Faculty Research Asst.
Oregon State University
Klamath Basin Res. & Ext. Center
Klamath Basin Potato Variety Development Summary 2014
Table of Contents
Introduction
3
Acknowledgements
4
Contributors
5
2014 Weather
6-7
2014 Insect Trapping Results
8-10
Guide to Clone Designations
11
Single-hill Screening Results
12-13
Fresh Market Value Methods
14
Replicated Trial Cultural Information
15
Russet Potato Variety Development Trials
Preliminary Yield Trial (PYT-2)
16
Statewide Trial
17-24
Tri-State Trial
25-31
Red/Specialty Potato Variety Development Trials
Preliminary Yield Trial (PYT-2)
32
Statewide Trial
33-37
Tri-State
38-41
Chip Potato Variety Development Trial
Preliminary Yield Trial (PYT-2)…………………………………………………………………………… 42
Statewide Trial……………………………………………………………………………………………………..43-46
Regional Trial............................................................................................................47-50
Chip Processing Results…………..…………………………………………………………………………….51
2
Klamath Basin Potato Variety Development Summary 2014
Klamath Basin Introduction
Since its inception in 1985, the Tri-State variety development program has primarily focused on the
development of processing and dual-purpose (process and fresh) russets. Recent breeding efforts have
focused more on improving genetic resistance to various pests and diseases as a means of lowering
production costs. During the past decade, Oregon has been the lead state in the release of eleven
russet varieties. Although the development of russet varieties remains the primary focus, recent efforts
have included red-skinned and specialty-type selections. Many of these selections offer unique skin
and/or flesh color combinations along with enhanced nutritional qualities including elevated antioxidant
and Vitamin C content. In total, more than 25 new varieties have been released by the Tri-State variety
development program since 1985. More recently Klamath Basin growers have identified the need for
chipping potatoes suitable for export markets. Trials were initiated in 2008 and 2009, with funding from
the Oregon Potato Commission, to identify acceptable chipping varieties using advanced selections and
recently released varieties from the Tri-State, Southwest, North-central, and Eastern breeding programs.
Screening for resistance to various species of nematodes and related diseases is being accomplished at
several locations. The Klamath Basin Research and Extension Center (KBREC) routinely screens selections
for resistance to root-knot nematode (Meloidogyne chitwoodi and Meloidogyne hapla) and corky
ringspot disease (CRS) resulting from infection of Tobacco rattle virus which is vectored by stubby-root
(Paratrichodorus spp.) nematodes. Other cooperating sites within the Tri-State area also work on
resistant screening and other production limitations most suited to their respective location. The overall
objective is that future releases will offer genetic resistance to many economically important pests and
diseases which will help reduce production inputs as these costs continue to rise.
The Klamath Basin Research and Extension Center (KBREC) also serves as an initial field screening
location for first-generation selections of russet, specialty, and chipping clones (single-hills). Secondyear evaluations of four-hill red/specialty and chip selections also take place in Klamath; however, russet
selections are currently sent to the Central Oregon Agricultural Research Center (COARC). Breeding
progeny are supplied by programs at the USDA Agricultural Research Service (ARS) facility in Prosser,
Washington, and Aberdeen, Idaho, as well as, Oregon State University (OSU), Colorado State University,
and North Dakota State University.
The purpose of this summary booklet is to report the results of our variety trial efforts. In 2009, KBREC
participated in the following research trials: Russet Preliminary Yield 2 (PYT-2), Statewide Russet, Tristate Russet, Western Regional Russet, Red/Specialty PYT- 1, Statewide Specialty, Tri-state Specialty,
Western Regional Red/Specialty, and a modified Western Regional Chip Trial. A brief summary of
weather during the growing season, insect trapping results, single-hill selections, and specialty 4-hill
selections are also included in this research summary.
3
Klamath Basin Potato Variety Development Summary 2014
Acknowledgements
The ultimate goal of variety development at OSU-KBREC and cooperating Tri-state partners is the
development and commercialization of new potato varieties to benefit the Northwest potato industry.
The effect of the Tri-state Potato Variety Development Program on the Northwest potato industry has
been substantial. The fresh market industry, French fry processors and chippers have incorporated
many varieties developed through this program into their businesses. Ranger Russet, Western Russet,
Umatilla Russet, and Alturas are examples of russet cultivars released from the Tri-State program that
have greatly benefited the Northwest potato industry, being the 3rd, 5th, 7th, and 8th most widely grown
cultivars in Oregon and accounted for 27% of total acreage. As expected, recently released russet
varieties have found greater adoption by Northwest processors compared to fresh market usage in the
Klamath Basin. However, several varieties have found fresh market niches in the Klamath Basin
including GemStar Russet, Premier Russet, and most recently Classic Russet.
Varieties recently released by the Tri-State program are now produced on over 140,000 acres in the
Pacific Northwest with value to growers estimated at approximately $390 million. A recent economic
analysis of the Tri-state breeding effort revealed that every dollar invested in the program results in a
$39 return (Araji and Love, 2002). The current focus of Tri-state variety development efforts is to
develop improved varieties that increase quality and production efficiency while decreasing fertilizer
and pesticide inputs.
The success of OSU-KBREC potato variety development is made possible with funding from USDA CREES,
USDA ARS, and the generous support of the Oregon Potato Commission. In addition, the Klamath
Potato Growers Association annually contributes to OSU-KBREC research and Extension activities.
References
Araji, A.A. and S. Love. 2002. The economic impact of investment in the Pacific Northwest potato
variety development program. Amer. J. Potato Res. 79:411-420.
Special Acknowledgment
OSU-KBREC plagiarized the design and layout for this publication from the WSU Potato Cultivar Yield and
Postharvest Quality Evaluation publication. This is an excellent publication which provides a vast
amount of data in a ‘grower friendly’ venue. The publication below, by the Washington State University
Potato Research Group, can be found at the listed website.
Mark Pavek, Rick Knowles, Zach Holden, Nora Fuller. 2009. Washington State University Potato
Research Group, Pullman, WA. 2009 Potato Cultivar Yield and Postharvest Quality Evaluations.
http://www.potatoes.wsu.edu
4
Klamath Basin Potato Variety Development Summary 2014
Contributors
Oregon Cooperators:
Solomon Yilma, Corvallis, OR
Vidyasagar Sathuvalli, Hermiston Agricultural Research & Extension Center, Hermiston, OR
Clint Shock, Erik Feibert, Malheur Experiment Station, Ontario, OR
Tri-state Cooperators:
Mark Pavek, Rick Knowles, Zach Holden, Nora Fuller, Washington State University, Pullman, WA
Chuck Brown, USDA/ARS, Prosser, WA
Jeff Stark, Peggy Bain, University of Idaho, Aberdeen, ID
Mike Thornton, University of Idaho, Parma, ID
Rich Novy, Jonathan Whitworth, Brian Schneider, USDA/ARS, Aberdeen, ID
Regional Cooperators:
David Holm, Farhettin Goktepe, Colorado State University, San Luis Valley, CO
Creighton Miller, Douglas Schuering, Jeff Koym, Texas A&M University, Springlake, TX
Rob Wilson, Darrin Culp, University of California, Tulelake, CA
Industry Cooperators:
Rebecca Jones, Allan French, J.R. Simplot Co.
Baley-Trotman Farms, Malin, OR
Wong Potatoes, Klamath Falls, OR
Ed Stastny, Malin, OR
Roy Wright, Tulelake, CA
Basin Fertilizer & Chemical, Merrill, OR
Macy Flying Service, Newell, CA
Commissions and Associations
Bill Brewer, Jennifer Fletcher, Judy Schwartz, Oregon Potato Commission, Portland, OR
Klamath Potato Growers Association, Klamath Falls, OR
5
Klamath Basin Potato Variety Development Summary 2014
Weather Data
2014 Growing Season Temperature
Min
Max
Air Temperature (F)
120
100
80
60
40
20
0
Yearly Average Minimum and Maximum Air Temperature
Average Minimum
Average Maximum
90.00
80.00
60.00
50.00
40.00
30.00
20.00
10.00
6
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
0.00
1991
Temperature (F)
70.00
Klamath Basin Potato Variety Development Summary 2014
Accumulated Water Year Precipitation
Accumulated Water Year Precipitation (in)
2013 Precipitation
2014 Precipitation
25
20
15
10
5
0
Potato Crop Water Use
0.45
2014 ET
0.4
Average ET 1999-2013
Crop Wate Use (in/day)
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
6/15/10
7
6/29/10
7/13/10
7/27/10
8/10/10
8/24/10
9/7/10
9/21/10
Klamath Basin Potato Variety Development Summary 2014
Total P-Day Accumulation
360
350
340
P-Days
330
320
310
2014
300
2000-2013 Average
290
280
270
260
May 15
June 1
June 15
2014 Insect Trapping Results
Potato tuberworm was first detected in the Klamath Basin in late-August of 2005. KBREC initiated an
extensive trapping program the following year (2006) and have continued this effort annually. In 2009,
we expanded our trapping efforts to include aphids, leafhoppers, and psyllids. Fifteen Delta traps (tuber
moth), twelve yellow water-pan traps (aphids), and fifteen sticky cards (leafhoppers and psyllids) were
placed in growers’ fields shortly after crop emergence. Traps were checked weekly during the growing
season and results were tabulated and made available to growers, crop consultants, and other industry
personnel electronically in newsletter titled Potato Bytes. This newsletter was also published on the
KBREC website at http://oregonstate.edu/dept/kbrec/. Collected data provided Basin producers with
pertinent information to improve pest management strategies. Potato tuberworm has not been found
despite an extensive eight-year trapping program. The following graphs show population dynamic
trends for aphids and leafhoppers throughout the growing season.
8
Population Dynamics of Potato Aphid, Green Peach
Aphid and Other Aphids in Klamath County, OR 2014
25
20
18
20
16
14
15
12
10
8
10
6
4
5
2
0
0
Average other aphid per trap per day
Average potato and green peach aphids per trap per day
Klamath Basin Potato Variety Development Summary 2014
Potato Aphids
Green Peach Aphids
Other Aphids
Population Dynamics of Beet Leafhoppers in Klamath
County, OR 2014
Average BLH per trap per day
0.25
0.2
0.15
0.1
0.05
0
9
Klamath Basin Potato Variety Development Summary 2014
Average OLH per day per trap
Population Dynamics of Other Leafhoppers in
Klamath County, OR 2014
6
5
4
3
2
1
0
10
Klamath Basin Potato Variety Development Summary 2014
Guide to Clone Designation
Example: AC99375-1RU
AC99375-1RU
AC99375-1RU
AC99375-1RU
AC99375-1RU
AC99375-1RU
AC99375-1RU
Breeding Program (Aberdeen, ID)
Selection Site (Colorado)
Year of Cross (1999)
Cross Number (375)
Tuber Selection (1)
Russet (Ru)
Location Codes
Designation
A
AO
AOA
ATX
BTX
CO
MWTX
NDA
NY
PA
POR
TC
TE
TXA
TXNS
Breeding Program
Aberdeen, Idaho
Aberdeen, Idaho
Aberdeen, Idaho
Aberdeen, Idaho
Beltsville, Maryland
Colorado
Madison, Wisconsin
North Dakota
New York
Prosser, Washington
Prosser, Washington
Texas
Tetonia, Idaho
Texas
Texas
Selection Program
Aberdeen, Idaho
Oregon
Oregon
Texas
Texas
Chuck Brown’s Cross
Low Sugar
Purple skin/Purple flesh
Red skin
Red skin/Red flesh
Red skin/Yellow flesh
Russet
White skin/Yellow flesh
Late Blight resistance
Purple skin with White eyes/ Yellow flesh
Purple skin/Yellow flesh
Purple skin/Purple and White flesh
11
Aberdeen, Idaho
Texas
Aberdeen, Idaho
Aberdeen, Idaho
Oregon
Colorado
Aberdeen, Idaho
Miscellaneous Designations
B
LS
P/P
R
R/R
R/Y
Ru
W/Y
LB
PW/Y
P/Y
P/PW
Other
Norkotah Strain
Klamath Basin Potato Variety Development Summary 2014
Single Hill Results
Approximately, fifty five thousand (55,000) greenhouse-produced seedling tubers were planted at a
remote site in the Yonna Valley area on May 19, 2014. Located about 25 miles east of Klamath Falls, soils
are very sandy with approximately 1.0 percent organic matter and a pH of 7.0. The location provides
good isolation from other potato production areas and intensively fumigated soils allows us to harvest
very clean material for seed increase. Progeny included 55 families from Oregon State University; 42
from USDA, Prosser, WA; 219 from USDA, Aberdeen, Idaho; 7 from Colorado State University. Several
crosses included russet parents with virus, late blight and potato tuber worm resistance.
Tuber families were lifted with a two-row, level-bed digger on October 9. A selection team including
researchers, extension agents, growers and industry personnel selected desirable clones from various
families immediately after lifting. As expected, selection was based primarily on external appearance;
however, internal evaluation was performed on a limited number of selections. All retained material
was transported to Klamath Falls, Oregon for storage at the Klamath Basin Research and Extension
Center (KBREC). The following table outlines the number of single- hills provided by each breeding
program and selection rate.
Location
ARS Prosser, WA
Oregon State University
Colorado State University
General Cross Types
Disease resistance, pigmented
Disease resistance, mixed type
Disease resistance, russet
ARS Aberdeen, ID
Disease resistance, russet
Total
12
Number
of Progeny
Planted
Number
of Progeny
Selected
%
Selection
Rate
8,395
11,151
2,081
85
199
23
1.01
1.78
1.10
34,185
706
1.02
55,812
1,013
1.81
Klamath Basin Potato Variety Development Summary 2014
Preliminary Yield (PYT-1) Russet Screening
Four hundred eighty five (485) selections from 2013 single-hills were planted in 16-hill seed increase
plots at remote site in the Yonna Valley area. Potato tubers were lifted using a two-row, level-bed
digger on October 8, 2014. A team of about 20 research and industry personnel selected 87 clones for
further evaluation based on market potential and possible disease resistance. Tubers from these
selections were retained and stored at KBREC for seed increase. This material will be evaluated in a
Preliminary Yield Trial (PYT-2 Russet) conducted at KBREC and other locations throughout the Pacific
Northwest in 2015.
Preliminary Yield (PYT-1) Specialty Screening
Thirty seven (37) selections from 2013 single-hills were planted in 16-hill seed increase plots at a remote
site in the Yonna Valley area. Potato tubers were lifted using a two-row, level-bed digger on October 8,
2014. A team of about 20 research and industry personnel selected 9 clones for further evaluation
based on market potential and possible disease resistance. Tubers from these selections were retained
and stored at KBREC for seed increase. This material will be evaluated in a Preliminary Yield Trial (PYT-2
Specialty) conducted at KBREC and other locations throughout the Pacific Northwest in 2015.
Preliminary Yield (PYT-1) Chip Screening
Eighty seven (87) chip selections from 2013 single-hills were planted in 16-hill seed increase plots at a
remote site in the Yonna Valley area. Potato tubers were lifted using a two-row, level-bed digger on
October 8, 2014. Research and industry personnel selected 14 clones for further evaluation based on
chipping potential and possible cold sweetening resistance. Seed of these selections was hand collected
and stored at the KBREC potato facilities. This material will be evaluated in a Preliminary Yield Trial
(PYT-2 Chip) conducted at KBREC and other locations throughout the Pacific Northwest in 2015. KBREC
will also be increasing seed for future evaluation.
13
Klamath Basin Potato Variety Development Summary 2014
Fresh Market Value – Methods
Graphs showing the difference in gross returns per acre (Fresh Market Value) compared to Russet
Norkotah are provided for all entries in both the Tri-state and Western Regional Russet Trials. Values
were calculated by subtracting the gross return of Russet Norkotah from the gross return of each
particular entry. Net packing shed returns to growers were calculated using a five-year average of fresh
potato prices in the Klamath Basin and a packing shed cost of $6.10/cwt. Consultations with several
growers and shippers confirmed that these assumptions were valid comparisons to actual prices
observed in the Klamath Basin. Assessing the fresh value of a given entry is difficult as packing sheds
utilize various tuber sizes to meet current market orders. For example, all tubers that meet 90 or 100
count carton specifications are sometimes used to fill 5 and 10 lb. bale orders. As expected, these types
of scenarios are not accounted for in our assumptions. In addition, this type of economic analysis does
not account for consumer preference. As such, entries which appear to lack fresh market appeal are
highlighted as white bars. The table below lists point prices per tuber size and grade with associated
pack fees for grade and size categories used.
Five Year
Klamath Basin
Avg. $/cwt
$11.26
Packaging
and Handling
$6.10
5.0 lb. poly bags
$13.26
$6.10
6-10 oz.
70, 80, 90 and 100 count
$19.22
$6.10
10-20 oz.
40, 50, 60 and 70 count
$21.87
$6.10
<4 oz. and culls
Washed Processed Grade
$4.06
$6.10
No. 2
10-20 oz (50 lb. sacks)
$11.19
$6.10
6-10 oz (50 lb. sacks)
$9.08
$6.10
KBREC Grade Size
4-6 oz.
1
Markets/Packaging1
10.0 lb. poly bags
Count = tuber number per 50 lb. carton.
14
Klamath Basin Potato Variety Development Summary 2014
2014 Replicated Trial Cultural Information
Location:
Klamath Falls, OR
Soil Type:
Poe fine sandy loam, pH 6.8
Planting Date:
5/14-5/15
Vine Kill Date:
August 25th: Rolled and chopped vines and Reglone application
Harvest Date:
October 2nd
Irrigation:
Solid-set sprinkler + natural precipitation = 22.5 inches
Plot Length:
25 hills (19.27 ft.)
In-row spacing:
9.25 inches
Row spacing:
36 inches
Number of Reps:
4 reps for Statewide Trials and 2 reps for PYT Trials
Fertilizer:
Weed Control:
180-80-200-215
Prowl, Matrix
Insecticides:
Admire
Fungicides:
Ridomil/Bravo, Vertisan, Revus
Nematode Control:
Vydate C-LV + Fall 2012 application of Telone and Vapam
General Comments:
The three week period from 7/1 thru 7/21 averaged 91 degrees F for daily high temperature which was
8 degrees higher than the 25-yr average daily high for that time period. Excessive heat stressed most
clones which resulted in pointy stem-ends. Despite the sustained heat, total yields were slightly above
average with the exception of Russet Norkotah which was 50 to 75 cwt lower than typical. Stem-end
browning and vascular discoloration issues were higher than normal but likely due to moisture stressed
plants at time of vine-kill. Full irrigation deliveries for ‘A’ water users occurred despite early fears of
curtailments.
15
Klamath Basin Potato Variety Development Summary 2014
2014 Preliminary Yield (PYT-2) Russet Trial
Location: OSU KBREC – Klamath Falls, OR
Planting Date: May 15
Harvest Date: September 23
Fertility: 180-80-200-215
Vine Kill Date: September 2
Days to Vine kill: 111
In-Row Spacing: 9.25 inch
The PYT-2 Russet Trial evaluates recently selected clones, often only three years removed from singlehill selection. Retained entries are further evaluated in replicated trials at several Oregon locations
before advancing (if applicable) to the Tri-state trial which includes testing locations in Washington and
Idaho. This trial included 3 standard varieties and 64 new entries. The Oregon Potato Variety
Development Team chose to advance 22 selections to the Statewide Russet Trial in 2015 and discarded
the remaining selections due to poor performance. Only retained selections are listed in the following
tables.
Clone
Female Parent
Male Parent
AOR10007-3
AOR10007-10
AOR10015-6
AOR10016-1
AOR10016-5
AOR10062-1
AOR10089-1
AOR10097-3
AOR10214-2
AOR08477-2
AOR07891-3
AOR07892-3
AOR07892-9
AOR07892-17
AOR07892-21
AOR08540-1
AOR10028-1
AOR08241-1
OR10006-2
POR12NCK50-1
POR12NCK59-1
AOR10007-2
A02060-3TE
A02060-3TE
A03158-1TE
A03158-1TE
A03158-1TE
A98345-1
A03131-21
A03131-21
PA07V5-3
PA98NM25-5
A02782-2
A02782-2
A02782-2
A02782-2
A02782-2
A02782-2
A05012-2T
A97066-42LB
A06866-2 (STO)
PA99N82-4
PA99N82-4
A02060-3TE
A05013-5TE
A05013-5TE
A05035-2
Western Russet
Western Russet
COA05092-1
A05013-5TE
Dakota Trailblazer
Stampede Russet
AO96365-2
A02811-11
PA03NM3-4
PA03NM3-4
PA03NM3-4
PA03NM3-4
PA01N22-5
A02060-3TE
ND028673B-2Russ
OR04057-2
Western
PA01N21-4
A05013-5TE
16
Klamath Basin Potato Variety Development Summary 2014
2014 Statewide Russet Trial
Location: OSU KBREC – Klamath Falls, OR
Planting Date: May 15
Harvest Date: September 23
Fertility: 180-80-200-215
Vine Kill Date: September 2
Days to Vine kill: 111
In-Row Spacing: 9.25 inch
The Statewide Russet Trial evaluates selections retained from the PYT-2 Russet Trial at three locations in
Oregon. As mentioned earlier, selections retained from this trial are advanced to the Tri-state Trial
which includes testing locations in Washington and Idaho. Testing locations in Oregon represent diverse
climatic conditions (hot, long-season and cool, short-season) which allow for the retention of selections
that exhibit stability over multiple locations. Oregon selections remain in the Statewide Trial until they
complete Tri-state and Western Regional evaluation or are discarded. Despite a warmer season, potato
plots at the KBREC site performed above average. The following is a summary of the Klamath Falls field
results.
Stand Counts
 30 Day
Slow emergence: AOR06664-1 (75%), POR11NCV1-1 (62%)
 45 Day
All entries had greater than 90% final emergence.
Plant and Tuber Growth and Development
 Average Tuber Number Per Plant
Most: AOR07926-1 and POR11NCK1-2 (8.3)
Least: AOR08541-1 (4.7), AOR07919-4 (3.8)
 Average Tuber Size (oz.)
Largest: AOR07919-4 (8.7), AOR06709-1 (8.3)
Smallest: POR11NCV1-1 (4.5), AOR07926-1 (3.8)
 Undersized Tubers (<4 oz.) cwt/Acre
Most: AOR07926-1 (118)
Least: AOR08075-1 (13), AOR07919-4 (11)
Yield and Economic Data
 Total Yield (cwt/Acre)
Highest: AOR06576-1 (584), AOR07781-5 (567)
Lowest: Russet Norkotah (330), POR11NCV1-1 (337)
 US No. 1 Yield (cwt/Acre)
Highest: AOR06576-1 (415), AO06191-1 (412)
Lowest: Russet Burbank (192), AOR07940-4 (187)
17
Klamath Basin Potato Variety Development Summary 2014
 Carton Yield (6-20 oz.) cwt/Acre
Highest: AOR06576-1 (348), AOR08638-2 (320)
Lowest: AOR07926-1 (86), Russet Burbank (121)
 Gross Return ($/acre)
Fresh Market Highest: OR09126-1, AO06070-1KF
Fresh Market Lowest: AOR06987-4, AOR06987-6
Tuber Defect Incidence (40 tuber sample of 10-14 oz. tubers)
 Hollow Heart
Notable Defects: AOR07769-3 (37%), AOR08405-3 (30%), POR11NC2-1 (22%)
 Vascular Discoloration
Notable Defects: Ranger Russet (35%), AOR08032-1 (20%), AOR07821-1 (15%)
 Stem End Browning
Notable Defects: OR08OP284-2 and AOR08433-1 (42%), AOR06576-1 and OR09126-1 (40%)
Entry
Ranger Russet
Russet Burbank
Russet Norkotah
AO06070-1KF
OR08014-4
AO06191-1
AOR07919-4
AOR08031-3
OR09126-1
AOR09012-1
AOR06576-1
AOR06664-1
AOR06706-2
AOR06709-1
AOR07519-5
AOR07520-4
AOR08296-2
AOR08405-3
AOR07821-1
AOR08416-2
AOR08433-1
18
Total Yield
(cwt/
A)
540
518
330
517
476
516
459
519
419
482
584
544
460
516
365
449
449
510
473
453
470
US #
1s*
> 4 oz.
stats**
ABCDEF
ABCDEFG
L
ABCDEFG
ABCDEFGHI
ABCDEFG
DEFGHIJK
ABCDEFG
HIJKL
BCDEFGHI
A
ABCDE
DEFGHIJK
ABCDEFG
KL
EFGHIJK
EFGHIJK
ABCDEFGH
BCDEFGHI
EFGHIJK
CDEFGHI
US #
2s*
> 4 oz.
Culls*
& <4 oz.
Oversized
>20 oz.
% of total yield
60
37
69
53
49
80
61
78
70
65
71
56
64
53
58
65
46
67
56
63
44
26
43
13
27
28
6
27
10
18
22
10
28
22
28
18
13
32
12
22
19
44
12
20
16
18
19
13
7
11
10
11
15
14
12
14
23
20
21
20
13
17
12
1
0
3
1
4
1
5
1
2
2
4
2
2
5
2
1
1
0
9
2
1
Carton Yield
100-50 count
(US 1's 6-20 oz)
% of total
(cwt/A)
yield
49
267
23
121
51
167
42
218
39
183
57
296
54
246
61
319
56
235
52
251
60
348
42
229
47
217
46
236
43
158
52
235
35
159
54
274
46
220
47
212
35
163
Klamath Basin Potato Variety Development Summary 2014
AOR08506-3
AOR08537-1
OR09SP39-1
OR08OP284-2
POR11BDPS1-8
POR11NC2-1
POR11NCK1-2
POR11NCV1-1
AOR08032-1
AOR08075-1
AOR07769-3
AOR07781-5
AOR08638-2
AOR061026-4
AOR07926-1
AOR07940-4
AOR08541-1
POR11PG61-3
LSD (0.05)
508
552
485
444
471
402
563
337
415
489
460
568
527
504
370
437
365
488
ABCDEFGH
ABCD
BCDEFGHI
FGHIJK
CDEFGHI
IJKL
ABC
L
HIJKL
ABCDEFGHI
DEFGHIJK
AB
ABCDEFG
ABCDEFGH
JKL
GHIJK
KL
DEFGHI
96
60
58
46
69
71
66
55
61
82
52
51
63
74
69
52
43
73
66
26
24
30
12
16
15
24
15
7
37
28
23
16
18
8
31
11
12
14
14
24
18
12
14
20
24
11
10
21
10
9
12
40
25
16
18
0
4
1
1
1
5
1
0
1
1
1
4
0
1
1
1
1
4
US # 1 Yield
>4 oz.
Entry
Ranger Russet
Russet Burbank
Russet Norkotah
AO06070-1KF
OR08014-4
AO06191-1
AOR07919-4
AOR08031-3
OR09126-1
AOR09012-1
AOR06576-1
AOR06664-1
AOR06706-2
AOR06709-1
AOR07519-5
AOR07520-4
AOR08296-2
AOR08405-3
19
%
(cwt/A)
STATS**
324
192
227
276
232
412
279
407
293
311
415
303
295
272
211
293
205
342
CDEFGH
Q
KLMNPQ
EFGHIJKLMNO
HJLMNOP
AB
EFGHIJKLMN
AB
DEFGHIJKL
DEFGH
A
DEFGHIJ
DEFGHIJ
FGHIJKLMNO
MNOP
DEFGHIJKL
OPQ
BCDEF
4-6
oz.
18
37
26
21
21
28
12
22
20
19
16
25
26
13
25
20
22
20
6-10 oz. >10 oz.
45
47
42
43
36
50
34
47
36
42
42
37
52
39
43
45
44
47
38
16
32
36
44
22
54
31
44
39
42
39
21
48
31
35
34
33
44
48
35
56
61
57
42
39
63
45
40
57
61
54
23
33
61
49
225
266
169
249
285
228
234
133
262
219
183
324
320
270
86
144
221
237
6-10 oz
Specific
Internal Defects (%)
10-14 oz. tubers****
Gravity
HH
IB
SEB
VD
1.090
1.088
1.069
1.100
1.083
1.079
1.073
1.091
1.079
1.091
1.085
1.104
1.084
1.095
1.089
1.091
1.092
1.095
0
0
0
13
20
13
0
0
0
0
0
0
0
3
13
0
5
30
8
8
0
8
5
15
0
3
8
13
13
5
5
8
15
10
20
13
13
20
13
18
13
18
10
35
40
23
40
28
8
28
8
15
5
3
35
5
0
3
0
0
0
10
8
8
0
13
10
10
0
10
10
0
Klamath Basin Potato Variety Development Summary 2014
AOR07821-1
AOR08416-2
AOR08433-1
AOR08506-3
AOR08537-1
OR09SP39-1
OR08OP284-2
POR11BDPS1-8
POR11NC2-1
POR11NCK1-2
POR11NCV1-1
AOR08032-1
AOR08075-1
AOR07769-3
AOR07781-5
AOR08638-2
AOR061026-4
AOR07926-1
AOR07940-4
AOR08541-1
POR11PG61-3
LSD (0.05)
265
283
206
303
320
222
309
332
265
307
206
339
254
235
358
391
348
193
187
266
322
GHIJKLMNOP
EFGHIJKLM
OPQ
DEFGHIJ
CDEFGH
LMNOPQ
DEFGH
CDEFG
GHIJKLMNOP
DEFGHI
NOPQ
BCDEF
HIJKLMNOPQ
IJKLMNOPQ
ABCD
ABC
ABCDE
PQ
Q
GHIJKLMNO
DEFGH
72
Average Tuber
Entry
Stand
%
Ranger Russet
Russet Burbank
Russet Norkotah
AO06070-1KF
OR08014-4
AO06191-1
AOR07919-4
AOR08031-3
OR09126-1
AOR09012-1
AOR06576-1
AOR06664-1
AOR06706-2
AOR06709-1
AOR07519-5
20
99
100
98
99
93
98
99
100
97
98
100
95
99
98
98
Wt.
(oz.)
6.5
5.7
5.3
6.4
7.0
5.4
8.8
6.2
6.7
6.6
6.8
6.8
6.1
8.4
5.3
No.
tubers/plant
7.1
7.7
5.4
7.0
6.3
8.2
3.9
7.1
5.5
6.3
7.3
7.2
6.5
5.4
6.0
Growth
Cracks
(1-5 ex)
4.0
3.3
4.6
4.5
4.3
4.5
4.3
4.8
4.9
4.8
4.5
4.1
4.3
4.1
4.5
17
25
21
26
17
24
19
14
14
24
36
23
14
22
10
18
22
55
23
17
26
36
48
40
51
46
42
45
47
28
38
45
44
45
51
40
44
46
42
41
41
43
Rhizoc
(1-5none)
4.5
4.6
4.6
4.0
3.8
4.5
4.8
5.0
4.4
4.3
4.6
4.0
5.0
4.5
4.4
47
27
39
23
37
34
36
39
58
38
19
33
41
26
50
38
32
3
36
42
30
1.099
1.100
1.099
1.091
1.077
1.072
1.090
1.088
1.083
1.080
1.088
1.092
1.074
1.084
1.084
1.090
1.105
1.084
1.075
1.086
1.096
0
0
0
0
0
0
0
3
23
0
0
0
3
38
0
0
3
0
0
0
10
Skin
Shape
Color Russeting
(1-5
23
13
3
3
3
0
5
10
18
10
13
3
0
0
3
3
13
10
3
10
23
15
20
43
28
5
18
43
25
13
18
0
23
5
3
25
5
23
3
23
3
15
(1-5
dark)
(1-5 hvy)
long)
Shape
Uniformity
4.0
4.3
4.9
4.5
3.8
5.0
4.8
4.0
4.9
4.3
4.4
3.4
4.0
4.1
5.0
4.0
4.1
4.8
4.4
3.9
5.0
4.8
4.0
4.6
4.0
3.8
3.5
4.0
4.1
5.0
5.0
4.8
4.3
4.5
4.6
4.0
4.3
4.4
4.4
4.0
4.8
4.0
4.1
3.5
3.6
3.5
3.4
4.1
3.6
3.5
4.3
3.9
4.0
4.0
3.8
4.0
3.1
4.1
3.4
3.9
(1-5 ex.)
15
13
5
13
5
0
15
0
0
13
0
20
10
0
8
0
13
0
8
3
0
Eye
Depth
(1-5
shal.)
3.8
3.6
4.3
3.9
4.1
4.1
3.9
4.0
3.8
3.6
3.9
13.5
3.9
3.5
3.8
Klamath Basin Potato Variety Development Summary 2014
AOR07520-4
AOR08296-2
AOR08405-3
AOR07821-1
AOR08416-2
AOR08433-1
AOR08506-3
AOR08537-1
OR09SP39-1
OR08OP284-2
POR11BDPS1-8
POR11NC2-1
POR11NCK1-2
POR11NCV1-1
AOR08032-1
AOR08075-1
AOR07769-3
AOR07781-5
AOR08638-2
AOR061026-4
AOR07926-1
AOR07940-4
AOR08541-1
POR11PG61-3
100
98
98
94
99
95
99
100
100
100
98
94
94
91
100
100
98
100
93
98
99
98
99
96
5.8
6.2
6.1
7.4
5.4
6.8
5.8
7.3
6.0
5.5
7.0
7.5
6.2
4.6
6.2
8.1
5.9
7.9
6.6
6.5
3.8
5.2
6.7
6.2
6.6
6.3
7.3
5.8
7.3
6.2
7.5
6.4
6.8
6.9
5.8
4.9
8.4
7.0
5.6
5.2
6.8
6.1
7.3
6.8
8.4
7.2
4.7
6.9
4.9
4.5
4.8
4.9
4.6
3.9
4.8
4.6
2.5
4.8
5.0
4.3
3.5
5.0
5.0
2.0
4.9
4.9
4.9
4.5
5.0
4.0
4.9
4.9
4.8
4.6
5.0
4.4
4.5
4.3
4.9
4.4
4.8
4.3
4.4
3.9
5.0
4.8
5.0
5.0
4.8
5.0
4.9
4.8
4.8
4.8
4.9
4.9
4.5
4.0
3.5
4.9
3.6
4.9
3.9
4.1
3.4
4.5
4.4
4.4
3.0
4.5
4.1
4.8
4.8
4.8
4.0
4.4
4.1
4.5
4.9
4.8
4.5
3.8
3.6
4.6
3.8
5.0
3.9
4.1
3.1
4.4
4.3
4.3
3.1
4.8
4.0
4.6
4.8
4.6
3.9
3.4
4.1
4.5
4.8
4.5
4.1
3.5
4.8
4.3
4.3
3.8
4.3
4.0
4.3
5.0
4.3
4.4
4.8
3.8
4.4
4.4
4.0
4.8
3.5
4.8
3.8
4.9
5.0
4.1
*Percent values may not total 100% due to rounding
**Entries showing the same letter are not significantly different at the 5% level
***Entries retained for further testing in 2015
****Internal Defects: HH=hollow heart, BC= Brown Center, SEB=stem end browning, VD=vascular discoloration
Entry
Ranger Russet
Russet Burbank
Russet Norkotah
AO06070-1KF
OR08014-4
AO06191-1
AOR07919-4
AOR08031-3
OR09126-1
AOR09012-1
AOR06576-1
21
2014 KBREC- Statewide Russet Comments
Long, skinny, misshaped, crooky
Ugly net, pointy, misshaped, crooky, growth cracks
No yield, small, typy but pointy, folded bud ends
Misshaped, dents, pears, not fresh, thumbnail cracks, irregular shape
Long, lenticel scaring, misshaped, not fresh, shatter bruised
Typy, dark, small, apical sprouts
Dents, folded bud end, nice skin, not bad
Typy, chicken tracks, apical sprouts, flat, thumbnail cracks
Blocky, plump, not bad, pointy stem ends, skinning
Ugly net, misshaped, not back blocky, thumbnail cracks
Light, smooth, not bad, long, some bruising, typy, not fresh
4.0
3.4
4.0
3.8
3.8
3.1
3.6
3.6
2.8
4.4
3.8
4.0
3.3
4.1
4.1
13.1
3.8
4.0
4.0
4.1
4.0
3.8
4.3
4.0
3.6
3.9
4.1
4.1
3.9
4.3
3.8
3.9
3.5
3.9
3.8
3.5
4.3
4.3
4.0
3.9
4.0
3.9
4.0
4.0
4.1
4.0
4.0
3.9
Klamath Basin Potato Variety Development Summary 2014
AOR06664-1
AOR06706-2
AOR06709-1
AOR07519-5
AOR07520-4
AOR08296-2
AOR08405-3
AOR07821-1
AOR08416-2
AOR08433-1
AOR08506-3
AOR08537-1
OR09SP39-1
OR08OP284-2
POR11BDPS1-8
POR11NC2-1
POR11NCK1-2
POR11NCV1-1
AOR08032-1
AOR08075-1
AOR07769-3
AOR07781-5
AOR08638-2
AOR061026-4
AOR07926-1
AOR07940-4
AOR08541-1
POR11PG61-3
22
Deep eyes, misshaped, pears, not fresh, blotchy skin
Typy, nice skin, to small, lenticel scaring
Pears, round, lumpy, folded bud ends
Dark, round, skinning, not bad, dented, some skinning
Ugly net, typy, blocky, some pointy stem ends, thumbnail cracks
Dents, pears, not fresh, small, apical sprouts, black dot
Process, typy, not bad, some pointy, thumbnail cracks
Nice skin, irregular shape and size, thumbnail cracks, not bad
Typy, dents, flat not fresh, nice net
Pears, dark, rhizoc, sticky solon, flat
Pears, small, pointy stem end, not fresh
Pointy, apical sprouts, smaller, not bad, growth cracks, irregular size
Growth cracks, deep eyes, lumpy, drop
Typy, small, nice, long, keep
Plump, some flat, irregular shapes, not black dot resistant, typy, nice net keep
Typy, big, blocky, fair, no yield, short, pears
Long, knobs, misshaped, bruised, process
Nice net, small but typy, round
Blocky, like, typy, keep, nice net
Apical sprouts, growth cracks, long, typy, nice
Nice net, pears, apical sprouts, typy but pointy
Typy, deep eyes, nice net, pointy stem end, blocky
Folded bud ends, round, black dot, nice net, pears
Thumbnail cracks, rough hide, long, skinny, flat
Apical sprouts, small, rough skin, typy, pears, bruising
Long, typy, few misshapes, nice, keep, some pointy
Typy, nice, keep, dark net, long
Dark net, round, to small, bruised, thumbnail cracks, heavy russeting, black dot, not bad
Klamath Basin Potato Variety Development Summary 2014
Entries Retained for Further Evaluation in 2015
Entry
2014 KBREC- Statewide
Russet Comment
Ranger Russet
Entry
Russet Burbank
Ugly net, pointy,
misshaped, crooky,
growth cracks
Long, skinny,
misshaped, crooky
Russet Norkotah
AOR06576-1
Light, smooth, not bad,
long, some bruising, typy,
not fresh
No yield, small, typy but
pointy, folded bud ends
AOR07821-1
OR08OP284-2
Nice skin, irregular
shape and size,
thumbnail cracks, not
bad
POR11NCK1-2
Typy, small, nice, long,
keep
AOR08032-1
Typy, big, blocky, fair,
no yield, short, pears
23
2014 KBREC- Statewide
Russet Comment
Blocky, like, typy, keep,
nice net
Klamath Basin Potato Variety Development Summary 2014
AOR08075-1
AOR07781-5
Apical sprouts, growth
cracks, long, typy, nice
Differnece in Return from Russet Norkotah ($/Acre)
3000
Typy, deep eyes, nice
net, pointy stem end,
blocky
Fresh Value*
2500
2000
1500
1000
500
0
-500
-1000
AOR06576-1
AOR07781-5
AOR08638-2
AOR08031-3
AO06191-1
Ranger Russet
AOR08537-1
POR11BDPS1-8
AOR061026-4
AOR08405-3
AOR07919-4
AOR09012-1
AOR06664-1
AOR08032-1
AOR06709-1
POR11NCK1-2
OR09126-1
POR11PG61-3
AOR08075-1
AOR08506-3
OR08OP284-2
AOR07821-1
AO06070-1KF
POR11NC2-1
AOR06706-2
AOR07520-4
AOR08416-2
AOR08541-1
OR08014-4
AOR08433-1
AOR07769-3
OR09SP39-1
AOR08296-2
Russet Norkotah
Russet Burbank
AOR07519-5
AOR07940-4
POR11NCV1-1
AOR07926-1
-1500
*Difference in gross return per acre (Fresh Value) from Russet Norkotah calculated by subtracting the gross return of Russet
Norkotah from the gross return of the particular entry. Entries with white-colored bars may not appeal to fresh market
consumers due to the undesirable shape or appearance. Refer to page 14 for parameters used to collect gross return to
growers.
24
Klamath Basin Potato Variety Development Summary 2014
2014 Tri-State Russet Trial
Location: OSU KBREC – Klamath Falls, OR
Planting Date: May 15
Harvest Date: September 23
Fertility: 180-80-200-215
Vine Kill Date: September 2
Days to Vine kill: 111
In-Row Spacing: 9.25 inch
The Tri-state Russet Trial evaluates relatively advanced selections originally selected in both Oregon and
Idaho. Entries are evaluated for both fresh market and processing potential in Washington, Idaho, and
Oregon. Disposition of entries in this trial are determined by the Tri-state Technical Committee and if
retained, advance to the Western Regional Russet Trial. Despite a warmer season, potato plots at the
KBREC site performed above average. The following is a summary of the Klamath Falls field results.
Stand Counts
 30 Day
Slow emergence: AO06191-1 (75%), A0073-2 (69%)
 45 Day
Full emergence: All entries but A0073-2 (83%) had greater than 90% final emergence.
Plant and Tuber Growth and Development
 Average Tuber Number Per Plant
Most: A06096-2 (9.9), A06914-3CR (8.3)
Least: COA05149-2 (4.6), AO06191-1 (4.3)
 Average Tuber Size (oz.)
Largest: A03141-6 (9.1), AO06191-1 (8.2)
Smallest: A06020-8 (5.0), A08014-11TE (4.4)
 Undersized Tubers (<4 oz.) cwt/Acre
Most: A08014-11TE (80), A06096-2 (75)
Least: A07103-1T (15), A08014-9TE (13)
Yield and Economic Data
 Total Yield (cwt/Acre)
Highest: A06096-2 (664), A03141-6 (553)
Lowest: A08014-11TE (378), COA05149-2 (377)
 US No. 1 Yield (cwt/Acre)
Highest: A06408-99LB (349), A06914-3CR (338)
Lowest: Russet Norkotah (206), A08014-11TE
 Carton Yield (6-20 oz.) cwt/Acre
Highest: A07008-4T and A07103-1T (270)
Lowest: A08014-11TE (112)
25
Klamath Basin Potato Variety Development Summary 2014
 Gross Return ($/acre)
Fresh Market Highest: OR09126-1, AO06070-1KF
Fresh Market Lowest: AOR06987-4, AOR06987-6
Tuber Defect Incidence (40 tuber sample of 8-12 oz. tubers)
 Hollow Heart
Notable Defects: AO06191-1 (15%), AO03123-2 (10%)
 Impact Bruise
Notable Defects: A06862-18VR (20%), A06020-8 and A0073-2 (17%)
Total Yield
Entry
Ranger Russet
Russet Burbank
Russet Norkotah
A0073-2
A03141-6
A06014-14TE
A06020-8
A06096-2
A06408-99LB
A06862-18VR
A06914-3CR
A07008-4T
A07103-1T
A08014-11TE
A08014-9TE
AO03123-2
AO06191-1
AOR06070-1KF
COA05149-2
LSD (0.05)
26
(cwt/A)
STATS**
539
471
386
438
553
416
446
665
436
531
548
549
467
379
436
443
405
516
378
BCD
BCDEF
F
DEF
B
EF
CDEF
A
DEF
BCD
BC
BC
BCDEF
F
DEF
DEF
F
BCDE
F
104
US #
2’s
> 4 oz.
Culls
& <4
oz.
US #
1’s*
> 4 oz.
% of Total Yield
57
46
54
74
48
52
49
48
80
56
62
60
67
46
67
66
80
46
71
26
37
33
13
34
28
26
34
6
26
19
26
22
28
24
20
3
36
12
15
16
11
11
11
18
25
18
12
10
19
11
8
25
6
13
9
16
8
Oversized
>20 oz.
2
0
2
1
7
2
0
0
2
8
1
3
3
1
2
2
8
2
8
Carton Yield
100-50 count
(US 1's 6-20 oz)
% of Total Yield
(cwt/A)
47
32
39
59
43
36
34
36
62
47
39
49
58
30
55
57
67
35
61
251
151
152
259
238
152
153
240
271
251
216
270
270
112
239
251
273
182
230
Klamath Basin Potato Variety Development Summary 2014
US # 1 Yield
Entry
>4 oz.
(cwt/A)
Ranger Russet
Russet Burbank
Russet Norkotah
A0073-2
A03141-6
A06014-14TE
A06020-8
A06096-2
A06408-99LB
A06862-18VR
A06914-3CR
A07008-4T
A07103-1T
A08014-11TE
A08014-9TE
AO03123-2
AO06191-1
AOR06070-1KF
COA05149-2
LSD(0.05)
306
218
206
326
265
215
220
318
349
298
339
331
315
175
294
291
324
237
268
STATS**
ABCDE
DEF
EF
ABCD
ABCDEF
DEF
CDEF
ABCDE
A
ABCDE
AB
ABC
ABCDE
F
ABCDE
ABCDE
ABCD
BCDEF
ABCDEF
111
Average Tuber
4-6 oz.
18
31
26
20
10
30
31
24
22
16
36
18
15
36
18
14
16
23
14
Entry
Stand
%
Wt.
(oz.)
Number
tubers/plant
Green
(1-5
none)
Ranger Russet
Russet Burbank
Russet Norkotah
A0073-2
A03141-6
A06014-14TE
A06020-8
A06096-2
A06408-99LB
A06862-18VR
A06914-3CR
100
98
98
83
97
97
98
99
95
97
100
7.5
5.6
6.6
6.1
9.1
6.2
5.1
5.8
6.0
8.0
5.5
6.2
7.3
5.1
7.4
5.3
5.9
7.6
9.9
6.5
5.8
8.4
3.8
4.5
4.3
4.3
3.8
4.0
3.5
3.8
4.1
3.5
3.8
27
%*
6-10
oz.
37
43
41
48
25
41
43
42
50
34
38
40
30
43
32
38
33
37
38
>10 oz.
Growth
Cracks
(1-5
none)
4.4
3.6
4.5
4.9
4.6
2.5
4.5
4.5
5.0
4.0
3.5
45
26
33
31
65
30
26
34
28
51
26
42
56
21
49
48
51
40
47
Skin
Color
(1-5
dark)
3.9
4.4
4.8
4.1
2.9
4.8
3.1
3.0
2.9
3.6
3.3
6-10 oz.
Specific
Gravity
1.086
1.082
1.070
1.091
1.085
1.075
1.086
1.081
1.091
1.091
1.081
1.078
1.085
1.082
1.070
1.087
1.097
1.095
1.072
Russeting
(1-5 hvy)
4.1
4.4
4.6
4.1
3.1
4.9
2.9
3.1
3.0
3.6
3.3
Internal Defects (%)
10-14 oz. tubers****
HH
IB
SEB
VD
0.0
0.0
0.0
0.0
7.5
5.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
10.0
15.0
5.0
0.0
7.5
7.5
5.0
17.5
0.0
0.0
17.5
5.0
15.0
20.0
2.5
2.5
0.0
7.5
7.5
5.0
2.5
2.5
5.0
12.5
20.0
12.5
15.0
17.5
17.5
20.0
17.5
10.0
22.5
30.0
25.0
7.5
17.5
30.0
30.0
7.5
25.0
7.5
20.0
10.0
5.0
0.0
40.0
7.5
30.0
0.0
15.0
0.0
5.0
7.5
0.0
7.5
0.0
2.5
5.0
0.0
30.0
Shape
(1-5
long)
5.0
4.9
4.6
4.0
5.0
4.9
4.8
5.0
3.8
4.3
3.9
Shape
Uniformity
(1-5 ex.)
3.1
2.9
3.5
3.9
2.9
3.5
3.5
3.4
3.8
13.1
3.4
Eye
Depth
(1-5
shal.)
3.6
3.9
4.0
4.0
3.5
3.9
3.9
4.1
3.8
3.5
4.0
Klamath Basin Potato Variety Development Summary 2014
A07008-4T
A07103-1T
A08014-11TE
A08014-9TE
AO03123-2
AO06191-1
AOR06070-1KF
COA05149-2
100
95
97
92
95
97
95
92
6.7
8.1
4.4
8.0
6.7
8.2
6.7
7.7
7.0
5.2
7.6
5.1
5.9
4.4
6.8
4.6
4.1
3.9
4.5
4.5
4.4
4.1
3.6
4.3
4.3
4.0
3.9
4.5
4.9
4.9
4.0
4.9
4.4
3.6
4.4
3.6
3.5
4.9
4.0
4.6
4.9
3.8
4.5
4.0
3.4
4.9
4.0
4.8
5.0
4.3
4.0
3.8
4.6
4.4
4.8
4.0
*Percent values may not total 100% due to rounding
**Entries showing the same letter are not significantly different at the 5% level
***Entries retained for further testing in 2015
****Internal Defects: HH=hollow heart, IB= impact bruise, SEB=stem end browning, VD= vascular discoloration
Total and Market Yield
700
600
CWT/Acre
500
400
300
200
100
0
28
Marketable Yield (U.S #1's and #2's)
4.0
3.6
10.8
3.1
3.6
4.5
3.1
3.9
3.4
4.0
3.9
3.9
3.9
4.0
4.0
4.0
Klamath Basin Potato Variety Development Summary 2014
Difference in Return from Russet
Norkotah ($/Acre)
Fresh Value*
3000
2500
2000
1500
1000
500
0
-500
*Difference in gross return per acre (Fresh Value) from Russet Norkotah calculated by subtracting the gross return of Russet
Norkotah from the gross return of the particular entry. Entries with white-colored bars may not appeal to fresh market
consumers due to the undesirable shape or appearance. Refer to page 14 for parameters used to collect gross return to
growers.
Entry
2014 KBREC- Tri-State
Russet Comment
Ranger Russet
Entry
Russet Burbank
Pointy, knobs, crooky,
misshaped
Pointy, long, crooky,
skinny, blotchy skin
Russet Norkotah
A0073-2
Not bad, blotchy skin,
pointy, crooky
29
2014 KBREC- Tri-State
Russet Comment
Not bad, small, rhizoc,
no yield, short, dents
Klamath Basin Potato Variety Development Summary 2014
A03141-6
A06014-14TE
Long, big, not fresh,
dents, pears, pointy
stem end, poor,
misshaped
A06020-8
Long, growth cracks,
to skinny, misshaped
A06096-2
Lenticel scaring, drop,
irregular shape, pointy,
crooks
A06408-99LB
Long, skinny, rhizoc,
not fresh, misshaped,
Apical sprouts
A06862-18VR
Small, impact bruise,
hard bite, to round, not
fresh, thumb nail
cracks, Fusarium
A06914-3CR
A07008-4T
Growth cracks, dented,
green, not fresh,
lenticel scaring,
irregular shape
30
Shatter bruise, apical
sprouts, ugly, folded
bud ends, growth
cracks, thumb nail
cracks
Dark, long, typy, deep
eyes, long, some
misshaped,
Klamath Basin Potato Variety Development Summary 2014
A07103-1T
A08014-11TE
Growth cracks, shatter
bruised, small, no
yield thumb nail
cracks
Dents, misshaped,
pears, big, blocky,
blotchy skin
A08014-9TE
AO03123-2
Pears, growth cracks,
dented, apical sprouts,
plump, round, not
fresh
AO06191-1
AOR06070-1KF
Dark, typy, low set,
fresh, keep, best of trial
COA05149-2
Round, plumpy,
dented, not fresh, big
and blocky, flat
31
Pointy, long, blotchy
skin, process only,
typy, not fresh, a little
lumpy
Pointy stem end,
crooky, green, dents,
no uniformity, pears
Klamath Basin Potato Variety Development Summary 2014
2014 Preliminary Yield (PYT-2) Specialty Trial
Location: OSU KBREC – Klamath Falls, OR
Planting Date: May 15
Harvest Date: September 23
Fertility: 180-80-200-215
Vine Kill Date: September 2
Days to Vine kill: 111
In-Row Spacing: 9.25 inch
The PYT-2 Specialty Trial evaluates recently selected clones, often only two years removed from singlehill selection. Retained entries are further evaluated in replicated trials at several Oregon locations
before advancing (if applicable) to the Tri-state trial which includes testing locations in Washington and
Idaho. This trial included 2 standard varieties and 22 new entries. The Oregon Potato Variety
Development Team chose to advance 10 selections to the Statewide Specialty Trial in 2015 and
discarded the remaining selections due to poor performance. Only retained selections are listed in the
following tables.
Entry
Female Parent
Male Parent
AOR06296-1
A00286-3Y
ND4659-5R
POR12PG7-1
A757
Or bulk 2/23
POR12PG10-1
POR12PG26-2
B26
(Alaska 8-3 x OR04198)-6
Or bulk 2/13
Or bulk 2/23
POR12PG28-3
POR12PG69-1
(Alaska 8-3 x OR04198)-9
A558
Or bulk 3/4
OR Bulk 3/23
POR12PG73-1
POR12PG76-2
A541
A558
Premier
OR Bulk 2/7
OR10220-1
YAGANA
POR02PG26-5
32
Klamath Basin Potato Variety Development Summary 2014
2014 Statewide Specialty Trial
Location: OSU KBREC – Klamath Falls, OR
Planting Date: May 15
Harvest Date: September 23
Fertility: 180-80-200-215
Vine Kill Date: September 2
Days to Vine kill: 111
In-Row Spacing: 9.25 inch
The Statewide Specialty Trial evaluates selections retained from the PYT-2 Specialty Trial at three
locations in Oregon. As mentioned earlier, selections retained from this trial are advanced to the Tristate Trial which includes testing locations in Washington and Idaho. Testing locations in Oregon
represent diverse climatic conditions (hot, long-season and cool, short-season) which allow for the
retention of selections that exhibit stability over multiple locations. Oregon selections remain in the
Statewide Trial until they complete Tri-state and Western Regional evaluation or are discarded. Despite
a warmer than average growing season and high nematode pressure, potato plots at the KBREC site
performed above average. The following is a summary of the Klamath Falls field results.
Stand Counts
 30 Day
Slow emergence: POR10PG3-9 (77%), POR11PG39-3 (87%)
 45 Day
Full emergence: All entries had greater than 98% final emergence
Plant and Tuber Growth and Development
 Average Tuber Number Per Plant
Most: POR11PG62-3 and POR10PG3-5 (17.6)
Least: Red LaSoda (5.7), Yukon Gold (5.3)
 Average Tuber Size (oz.)
Largest: Red LaSoda (8.0), Yukon Gold (6.3)
Smallest: POR11PG62-13 (1.5), POR10PG3-9 (0.8)
 C Size Tubers (< 1.875 inch diameter and <4 oz.) cwt/Acre
Most: POR11PG62-3 (268), POR11PG62-13 (187)
Least: Red LaSoda (5), Yukon Gold (4)
 B Size Tubers (1.875-2.25 inch diameter and <4 oz.) cwt/Acre
Most: POR10PG3-5 (211), POR11PG62-6 (183)
Least: POR10PG3-9 (14), Red LaSoda (23)
Yield Data
 Total Yield (cwt/Acre)
Highest: POR11PG16-1 (762), POR11PG20-2 (650)
Lowest: POR11PG62-13 (279), POR10PG3-9 (147)
33
Klamath Basin Potato Variety Development Summary 2014
 US No. 1 Yield (cwt/Acre)
Highest: POR11PG16-1 (603),
Lowest: POR11PG62-13 (242), POR10PG3-9 (93)
Tuber Defect Incidence (40 tuber sample)
 External Defects
High incidence of growth cracks observed in Red LaSoda and moderate greening observed in
POR11PG16-1.
 Internal Defects
Impact Bruise: POR11PG20-2 (15%)
Vascular Discoloration: POR10PG3-9 (17%)
Primary
skin
Entry
color
Skin
(1-5
Color
dark)
Yukon Gold
1.8
Yellow
Red LaSoda
3.6
Red
P. Majesty
5.0
Purple
POR10PG3-5
3.6
Red/Yellow
POR10PG3-9
2.4
Yellow
AOR06267-3
4.0
Red
POR11PG4-2
3.0
Yellow
POR11PG8-1
5.0
Purple
POR11PG16-1
3.6
Red
POR11PG20-2
2.5
Yellow
POR11PG39-3
3.3
Yellow
POR11PG48-1
4.9
Purple
POR11PG62-3 Yellow/Red
1.5
POR11PG62-6
2.0
Yellow
POR11PG62-13
4.0
Purple
LSD (0.05)
34
Flesh
Color
Yellow
Yellow
Purple
Yellow
Yellow
Yellow
Yellow
Purple
Yellow
Yellow
Yellow
Purple
Yellow
Yellow
Purple
Primary
flesh
Total Yield
color
(1-5
dark)
(cwt/A) STATS**
EFG
2.3
390
CD
1.0
539
CD
5.0
522
DEF
4.1
446
I
4.0
148
DEFG
2.0
441
FGH
3.3
353
BC
5.0
593
A
3.5
763
B
3.1
658
GH
4.1
338
CDE
4.3
491
EFG
1.9
409
DE
3.4
478
H
4.8
279
102
Culls
>0
oz.****
% of Total Yield
87
13
64
36
81
19
85
15
63
37
80
20
93
7
84
16
79
21
74
26
83
17
80
20
84
16
83
17
87
13
US # 1's*
> 0 oz.
External Defects
(1-5 none)
Green
Growth
crack
Knobs
4.3
4.0
5.0
4.4
4.0
3.6
4.3
4.6
3.0
3.5
4.1
4.9
4.1
3.5
5.0
4.9
2.6
4.8
5.0
4.8
5.0
5.0
4.5
4.3
5.0
5.0
4.1
4.9
4.9
5.0
5.0
4.5
5.0
5.0
5.0
5.0
5.0
5.0
4.0
4.6
5.0
4.6
4.8
5.0
5.0
Klamath Basin Potato Variety Development Summary 2014
US # 1 Yield
Entry
(cwt/A) STATS**
Yukon Gold
Red LaSoda
P. Majesty
POR10PG3-5
POR10PG3-9
AOR06267-3
POR11PG4-2
POR11PG8-1
POR11PG16-1
POR11PG20-2
POR11PG39-3
POR11PG48-1
POR11PG62-3
POR11PG62-6
POR11PG62-13
LSD (0.05)
CDE
338
344
420
381
93
353
327
500
604
490
280
395
342
397
243
CDE
BC
CD
G
CDE
DEF
B
A
B
EF
CD
CDE
CD
F
88
C
B
size size
1
10
1
7
9
34
21 55
84 15
18 41
21 51
9
35
4
17
4
23
27 45
2
11
78 19
17 46
77 21
Average Tuber
Entry
Yukon Gold
Red LaSoda
P. Majesty
POR10PG3-5
POR10PG3-9
AOR06267-3
POR11PG4-2
POR11PG8-1
POR11PG16-1
POR11PG20-2
POR11PG39-3
POR11PG48-1
POR11PG62-3
POR11PG62-6
POR11PG62-13
35
Stand
%
Wt.
(oz.)
100
100
100
100
100
100
100
100
99
98
100
100
100
100
100
6.3
8.0
3.5
2.2
0.8
3.2
2.2
3.4
4.8
4.4
2.4
5.8
2.0
2.6
1.5
%
4-6
oz.
24
15
31
17
1
20
21
28
27
31
16
28
2
25
2
Shape
Uniform
Number
tubers/plant (1-5 ex.)
5.3
5.8
12.8
17.6
14.8
11.8
13.6
14.9
13.5
13.0
11.8
7.2
17.7
15.9
16.0
3.5
3.1
3.1
4.5
3.8
4.0
4.5
3.8
3.5
3.8
3.9
3.1
4.5
3.8
4.4
6-10
oz.
36
34
24
7
0
21
7
24
29
32
12
40
0
12
0
10-20
oz.
11
22
0
0
0
0
0
0
9
2
0
3
0
0
0
Specific
Oversized
Gravity
>20 oz.
(cwt/A)
Rhizoc
(1-5
none)
Russeting
(1-5 hvy)
4.1
3.4
4.4
3.4
3.5
3.1
4.1
4.1
3.8
3.6
2.8
4.8
4.1
2.5
3.5
1.5
1.4
3.5
1.1
1.1
5.0
2.0
2.3
1.4
2.3
2.3
1.5
1.0
1.3
1.5
6
13
0
0
0
0
0
0
4
2
0
2
0
0
0
Shape
(1-5
long)
2.0
2.3
2.8
1.0
2.1
4.5
1.0
2.3
2.5
1.8
4.1
1.5
5.0
1.4
4.9
1.060
1.069
1.077
1.079
1.083
1.088
1.080
1.086
1.077
1.064
1.069
1.076
1.082
1.078
1.076
Internal Defects
(%)****
VD
IBS
SEB
IB
2.5
0.0
0.0
2.5
17.5
0.0
7.5
0.0
2.5
2.5
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
2.5
0.0
0.0
0.0
0.0
0.0
0.0
5.0
0.0
0.0
0.0
0.0
7.5
2.5
0.0
0.0
0.0
2.5
2.5
7.5
0.0
0.0
2.5
0.0
0.0
2.5
7.5
0.0
7.5
0.0
7.5
15.0
2.5
2.5
0.0
0.0
0.0
Size
uniformity
(1-5 ex.)
Shape
uniformity
(1-5 ex.)
3.0
2.3
3.1
4.5
4.5
4.0
4.5
4.0
3.0
3.9
4.1
3.9
4.5
3.9
4.5
3.5
3.1
3.1
4.5
3.8
4.0
4.5
3.8
3.5
3.8
3.9
3.1
4.5
3.8
4.4
Eye
Depth
(1-5
shal.)
4.3
3.4
4.1
3.4
3.3
4.3
3.5
4.3
3.8
4.3
4.5
4.0
4.0
4.4
4.5
Klamath Basin Potato Variety Development Summary 2014
*Percent values may not total 100% due to rounding
**Entries showing the same letter are not significantly different at the 5% level
****Including >20oz. and #2’s
****Internal Defects: VD= Vascular Discoloration, IBS= internal brown center, SEB=stem end browning, IB= impact
bruise
Entry
Yukon Gold
Red LaSoda
Purple Majesty
POR10PG3-5
POR10PG3-9
AOR06267-3
POR11PG4-2
POR11PG8-1
POR11PG16-1
POR11PG20-2
POR11PG39-3
POR11PG48-1
POR11PG62-3
POR11PG62-6
POR11PG62-13
2014 KBREC State Specialty Comments
Bronzing, lenticel scaring, misshaped, impact bruise
Growth cracks, misshaped, big, lumpy, poor, folded bud ends
Dingy, bronzing, culls, dents
Sprouts, fair, knobby ends, lumpy
Lumpy, sprouts, impact bruise, drop
Bronzing, dingy, pears, pointy, lenticel scaring, fair
Pink tones, sprouts, small, fair
Bronzing, pears, misshaped, drop lumpy, dingy, silver scurf
Growth cracks, sprouts, drop, poor, folded bud ends
Black dot, impact bruise, no shine, russeting, pointy stem ends, pears
Sprouts, pink tones, rhizoc, pears, pointy, stem end rot
Shatter bruise, culls, bronzing, misshaped, folded bud ends, Fusarium
Fingerling, pink splash, typy
Lenticel scaring, rhizoc, small impact bruise, fair, pointy stem end
Bronzing, no shine, poor, dull, stem end rot, broken pieces
Entries Retained for Further Evaluation in 2015
Entry
2014 KBREC- Statewide
Specialty Comment
Yukon Gold
2014 KBRECStatewide Specialty
Comment
Red LaSoda
Bronzing, lenticel
scaring, misshaped,
impact bruise
36
Entry
Growth cracks,
misshaped, sprouts,
large, lumpy, poor,
folded bud ends,
shatter bruised
Klamath Basin Potato Variety Development Summary 2014
Purple Majesty
POR10PG3-5
Dingy, bronzing, crap,
culls, dents
AOR06267-3
Sprouts, fair, knobby
ends, lumpy
POR11PG20-2
Black dot, impact
bruise, no shine,
russeting, pointy stem
ends, pears
Bronzing, dingy, pears,
pointy, lenticel scaring,
fair
POR11PG62-3
POR11PG62-6
Lenticel scaring, rhizoc,
small impact bruise,
fair, pointy stem end
37
Lenticel scaring, rhizoc,
small impact bruise,
fair, pointy stem end
Klamath Basin Potato Variety Development Summary 2014
2014 Tri-State Specialty Trial
Location: OSU KBREC – Klamath Falls, OR
Planting Date: May 15
Harvest Date: September 23
Fertility: 180-80-200-215
Vine Kill Date: September 2
Days to Vine kill: 111
In-Row Spacing: 9.25 inch
The Tri-state Specialty Trial evaluates relatively advanced selections originally selected in both Oregon
and Idaho. Entries are evaluated for both fresh market and processing potential in Washington, Idaho,
and Oregon. Disposition of entries in this trial are determined by the Tri-state Technical Committee and
if retained, advance to the Western Regional Russet Trial. Despite a warmer season, potato plots at the
KBREC site performed above average. The following is a summary of the Klamath Falls field results.
Stand Counts
 30 Day
Slow emergence: Chieftain (86%), A02267-1Y (88%)
 45 Day
Full emergence: All entries had greater than 90% final emergence.
Plant and Tuber Growth and Development
 Average Tuber Number Per Plant
Most: POR07PG20-2 (16.1), A05182-7RY (13.9)
Least: Yukon Gold (6.6), Chieftain (9.5)
 Average Tuber Size (oz.)
Largest: Chieftain (6.3), Yukon Gold (6.1)
Smallest: POR07PG20-2 (2.6), POR07PG3-1 (3.2)
 C Size Tubers (<1.875 inch diameter and <4 oz.) cwt/Acre
Most: POR07PG3-1 (40), NDA050237B-1R and A05182-7RY (34)
Least: Yukon Gold (7), Chieftain (9)
 B Size Tubers (1.875-2.25 inch diameter and <4 oz.) cwt/Acre
Most: A05182-7RY (177), POR07PG20-2 (156)
Least: Yukon Gold (38), Chieftain (46)
Yield Data
 Total Yield (cwt/Acre)
Highest: NDA081451CB-1CY (713), A02267-1Y (688)
Lowest: POR07PG3-1 (418), Yukon Gold (448)
 US No. 1 Yield (cwt/Acre)
Highest: NDA081451CB-1CY (588), A05182-7RY (559)
Lowest: Yukon Gold (353), POR07PG3-1 (386)
38
Klamath Basin Potato Variety Development Summary 2014
Tuber Defect Incidence (40 tuber sample)
 External Defects Moderate greening observed in A02267-1Y AND NDA081451CB-1CY. Chieftain
tubers had a high incidence of growth cracks.
 Internal Defects
Impact Bruise: Yukon Gold (15%), A05182-7RY (10%)
Internal Brown Spot: Yukon Gold (20%), POR07PG20-2 (15%)
Skin
Color
Entry
Chieftain
NDA050237B-1R
A05180-3PY
COA07365-4RY
Yukon Gold
A02267-1Y
A05182-7RY
POR07PG20-2
POR07PG3-1
NDA081451CB-1CY
Red
Red
Purple
Red
Yellow
Yellow
Pink
Y/PK
Yellow
Yellow
LSD (0.05)
39
Primary
skin
color
(1-5
dark)
3.8
4.0
4.8
4.0
1.5
3.3
2.4
2.3
1.5
1.5
Flesh
Color
Yellow
Yellow
Yellow
Yellow
Yellow
Yellow
Yellow
Yellow
Yellow
Yellow
Primary
flesh
color
(1-5
dark)
(cwt/A)
STATS**
1.0
1.3
1.5
2.0
1.8
2.0
2.0
3.9
2.6
2.1
683
570
609
495
426
612
678
428
398
692
ABC
ABC
ABC
ABC
C
AB
ABC
BC
C
A
237
Total Yield
US #
Culls*
1's*
>0
> 0 oz.
z.***
% of Total Yield
79
92
85
82
76
79
93
89
92
82
21
8
15
18
24
21
7
11
8
18
External
Defects (1-5 none)
Green
3.8
4.1
4.5
3.5
3.9
2.1
3.4
3.6
3.8
2.3
Growth
Shatter
crack
Bruise
2.1
3.6
3.9
3.9
3.4
2.9
4.1
3.6
4.4
3.3
5.0
4.1
4.5
4.4
5.0
4.8
4.5
4.0
3.9
3.9
Klamath Basin Potato Variety Development Summary 2014
US # 1 Yield
Entry
Chieftain
NDA050237B-1R
A05180-3PY
COA07365-4RY
Yukon Gold
A02267-1Y
A05182-7RY
POR07PG20-2
POR07PG3-1
NDA081451CB-1CY
%
(cwt/A)
540
524
516
405
323
482
630
379
366
568
LSD (0.05)
STATS**
AB
AB
AB
AB
B
AB
AB
AB
AB
A
229
Oversized
Specific
Internal Defects (%)
C
size
B
size
4-6
oz.
6-10
oz.
1020
oz.
>20 oz.
Gravity
HH
SEB
2
6
4
8
2
3
5
20
11
2
8
29
21
31
12
20
28
41
33
15
18
32
25
32
16
24
25
22
30
25
39
28
39
27
39
35
30
14
20
46
33
4
10
3
31
18
11
4
6
11
7.0
0.0
0.0
0.0
10.0
0.0
0.0
0.0
0.0
0.0
1.070
1.070
1.077
1.079
1.077
1.077
1.085
1.068
1.070
1.093
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
5.0 0.0 2.5
0.0 0.0 7.5
0.0 0.0 10.0
0.0 0.0 2.5
12.5 10.0 10.0
0.0 0.0 5.0
10.0 0.0 5.0
0.0 20.0 2.5
0.0 2.5 2.5
0.0 0.0 2.5
VD
IB
Size
Uniformity
(1-5 ex.)
Shape
Uniformity
(1-5 ex.)
Eye
Depth
(1-5
shal.)
3.4
3.8
3.9
4.0
3.9
3.9
3.8
4.4
4.0
3.3
4.0
3.8
3.9
3.4
3.6
4.1
4.0
4.0
3.8
3.9
3.6
4.1
4.1
3.8
3.9
4.3
4.3
95
4.7
13.1
4.8
1.9
1.5
3.8
4.3
NDA081451CB-1CY
*Percent values may not total 100% due to rounding
**Entries showing the same letter are not significantly different at the 5% level
****Including >20oz. and #2’s
****Internal Defects: HH=hollow heart, IBS= internal brown center, SEB=stem end browning, IB= impact bruise
4.4
Average Tuber
Entry
Chieftain
NDA050237B-1R
A05180-3PY
COA07365-4RY
Yukon Gold
A02267-1Y
A05182-7RY
POR07PG20-2
POR07PG3-1
40
Stand
%
Wt.
(oz.)
Number
tubers/plant
95
99
90
99
96
94
100
95
97
6.4
3.7
4.5
3.6
6.3
4.5
3.9
2.4
3.1
9.5
13.1
13.0
11.9
6.1
12.3
15.1
15.9
11.2
Rhizoc
(1-5none)
3.3
4.4
4.1
4.3
3.9
4.9
3.6
3.6
3.9
Russeting
(1-5 hvy)
Shape
(1-5
long)
2.0
1.5
1.5
1.6
1.9
1.6
1.6
1.5
1.9
3.1
1.6
1.8
2.5
2.0
1.9
1.9
1.3
1.9
Klamath Basin Potato Variety Development Summary 2014
Entry
2014 KBREC- Tri-State
Specialty Comment
Chieftain
Entry
NDA050237B-1R
Sticky stolon, growth
cracks, misshaped,
bronzing, large, dull,
skinning
A05180-3PY
Not bad, typy, some
skinning, scab, shatter
bruised
COA07365-4RY
Not bad, black dot,
limited russeting,
smooth, green, bright
color, fair
Skinning, growth cracks,
sticky stolon, folded bud
ends, bronzing, bright, fair
Yukon Gold
A02267-1Y
Lenticel scaring, not typy
for Yukon, flat, growth
cracks
A05182-7RY
Purple eyes, green, scab,
low black dot, fair,
sprouting
POR07PG20-2
Really nice, typy, keep,
impact bruise, rhizoc,
blush color
41
2014 KBREC- Tri-State
Specialty Comment
Pointy and knobby stem
end, rhizoc, apical
sprouting,
Klamath Basin Potato Variety Development Summary 2014
POR07PG3-1
NDA081451CB-1CY
Dull, bronzing, scab,
sprouts, some pink eyes
others aren’t
Typy, chipper like, green,
growth cracks, lenticel
scaring
2014 Preliminary Yield (PYT-2) Chip Trial
Location: OSU KBREC – Klamath Falls, OR
Planting Date: May 15
Harvest Date: September 23
Fertility: 180-80-200-215
Vine Kill Date: September 2
Days to Vine kill: 111
In-Row Spacing: 9.25 inch
The PYT-2 Chip Trial evaluates recently selected clones, often only two years removed from single-hill
selection. Retained entries are further evaluated in replicated trials at several Oregon locations before
advancing (if applicable) to the Tri-state trial which includes testing locations in Washington and Idaho.
Five selections were evaluated with two retained for further evaluation.
Clone
AOR06209-3
AOR06209-5
42
Female Parent
A91790-13
A91790-13
Male Parent
MSJ316-A
MSJ316-A
Klamath Basin Potato Variety Development Summary 2014
2014 Statewide Chip Trial
Location: OSU KBREC – Klamath Falls, OR
Planting Date: May 15
Harvest Date: September 23
Fertility: 180-80-200-215
Vine Kill Date: September 2
Days to Vine kill: 111
In-Row Spacing: 9.25 inch
Chipping potatoes comprise a significant portion of Klamath Basin acreage and identification of public
varieties suitable for export remains a high priority for Basin producers. Trials were initiated in 2008 and
2009 with funding from the Oregon Potato Commission to identify acceptable chipping varieties for
export markets using advanced selections and recently released varieties from the Tri-State, Southwest,
North-central, and Eastern breeding programs and have continued annually. In 2014 seven varieties and
advanced chipping selections were evaluated for yield, grade, processing quality, and storability to
determine their suitability to meet existing export demands for raw product. All field data was collected
at the KBREC site. Tubers from each replication were placed in both short and long-term commercial
storage with processing evaluations conducted by Baley-Trotman Farms. Results for 2014 are listed
below.
Stand Counts
 30 Day
Slow emergence: AOR00242-2 (87%)
 45 Day
All entries but AOR00242-2 (89%) had greater than 95% final emergence
Plant and Tuber Growth and Development
 Average Tuber Number Per Plant
Most: AOR09034-3 (12.7), AOR00242-2 (11.6)
Least: Chipeta (5.7), OR09253-1 (7.0)
 Average Tuber Size (oz.)
Largest: AOR09032-5 (4.8), Chipeta (4.1)
Smallest: AOR00242-2 (2.4), AOR09034-3 (2.7)
 Undersized Tubers (<4 oz.) cwt/Acre
Most: AOR09032-5 (109), AOR09032-5 (108)
Least: Chipeta (31), Atlantic (48)
Yield Data
 Total Yield (cwt/Acre)
Highest: AOR09034-3 (659), Atlantic (503)
Lowest: OR09253-1 (433), AOR09032-5 (446)
 Marketable Yield >4 oz. (cwt/Acre)
Highest: AOR09034-3 (497), OR09256-2 (421)
43
Klamath Basin Potato Variety Development Summary 2014
Lowest: Chipeta (275), AOR09032-5 (317)
Tuber Defect Incidence (40 tuber sample)
 External Defects: Moderate greening observed in AO09034-3. AOR09034-3 and APR09032-5 had
a high incidence of shatter bruise.
 Internal Defects
Impact Bruise: AOR09032-5 (17%), OR09256-2, AOR09032-5, AOR09034-3 (12%)
Hard Bite: OR09253-1 (12%), Atlantic (7%)
Entry
Atlantic
Chipeta
OR09253-1
OR09256-2
AOR00242-2
AOR09032-5
AOR09034-3
LSD (0.05)
Total Yield
(cwt/A)
504
475
433
503
498
446
659
STATS**
B
B
B
B
B
B
A
99
>4
oz.*
77
58
76
84
75
71
75
< 4 oz.*
Culls*
Oversize
> 14 oz.
% of Total Yield
10
7
12
13
22
24
15
Skin
color
(1-5 dark)
7
9
6
1
3
5
9
6
26
6
2
0
0
1
2.1
2.3
1.6
2.9
1.5
1.9
1.6
Yield US # 1 (>4 oz.)
Entry
(cwt/A)
Atlantic
Chipeta
OR09253-1
OR09256-2
AOR00242-2
AOR09032-5
AOR09034-3
LSD (0.05)
44
389
275
328
421
376
317
497
STATS**
BC
D
BCD
AB
BC
CD
A
97
4-6
oz.
21
15
21
32
34
41
35
%*
6-10
oz.
56
57
56
53
58
50
55
External Defects (1-5 none)
10-14
oz.
23
28
23
14
9
9
10
Green
Growth
crack
Knobs
3.5
3.3
3.1
4.2
3.7
4.2
3.6
4.6
4.1
4.6
4.6
4.4
4.8
3.8
4.8
5.0
5.0
5.0
4.9
4.9
4.9
Shatter
4.0
3.9
3.8
4.0
3.1
2.6
2.3
Klamath Basin Potato Variety Development Summary 2014
Average Tuber
Entry
Atlantic
Chipeta
OR09253-1
OR09256-2
AOR00242-2
AOR09032-5
AOR09034-3
Entry
Atlantic
Chipeta
OR09253-1
OR09256-2
AOR00242-2
AOR09032-5
AOR09034-3
Stand
%
Wt.
(oz.)
Number
tubers/plant
100
97
95
97
89
100
95
3.3
4.4
3.2
3.0
2.5
6.0
2.8
7.4
5.3
6.6
8.4
11.1
9.1
12.3
Rhizoc
(1-5 ex.)
2.8
2.1
3.1
4.6
4.8
4.4
2.8
Internal Defects (%)****
Specific
Gravity
1.088
1.091
1.109
1.087
1.084
1.090
1.088
HH
BC
SEB
VD
HB
IB
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
2.5
0.0
12.5
2.5
2.5
0.0
0.0
10.0
0.0
10.0
2.5
0.0
7.5
0.0
12.5
7.5
2.5
5.0
2.5
5.0
7.5
5.0
12.5
12.5
17.5
12.5
Russeting
(1-5 hvy)
Shape
(1-5 long)
Size
uniformity
(1-5 ex.)
Shape
uniformity
(1-5 ex.)
Eye
Depth
(1-5 shal.)
3.1
2.0
1.8
3.0
1.5
1.6
1.8
2.2
2.3
1.5
1.5
1.6
1.8
1.5
3.5
2.6
3.5
3.8
3.8
3.8
4.0
3.8
3.5
3.9
4.1
3.9
3.6
4.0
3.9
3.9
4.0
3.6
3.9
4.1
3.8
*Percent values may not total 100% due to rounding
**Entries showing the same letter are not significantly different at the 5% level
****Including >20oz. and #2’s
****Internal Defects: HH=hollow heart, BC= brown center IBS= internal brown center, SEB=stem end browning,
VD= vascular discoloration, HB= hard bite, IB= impact bruise
45
Klamath Basin Potato Variety Development Summary 2014
Entry
Atlantic
Chipeta
OR09253-1
OR09256-2
AOR00242-2
AOR09032-5
AOR09034-3
2014 KBREC- Chip Trial Comments
Lenticel scaring, rhizoc, folded bud ends, impact bruise
Oversize, rhizoc, russeting, low shatter bruise, flat
Green, lenticel scaring, black dot, impact bruise, low shatter bruise, fair
Russeting, smaller, not bad, low bruise, black dot, dents
Smooth, impact bruise, typy, not bad, sticky stolon, pears, black dot
Pears, shatter bruise, Fusarium, folded bud ends, smooth, low impact bruise
Lenticel scaring, growth cracks, shatter bruise, Fusarium, garbage
Entries Retained for Further Evaluation in 2015
Entry
2014 KBREC- Statewide
Chip Comment
Atlantic
Entry
Chipeta
Lenticel scaring, rhizoc,
folded bud ends, impact
bruise,
OR09253-1
Oversize, rhizoc, russeting,
low shatter bruise, flat
OR09256-2
Green, lenticel scaring,
black dot, impact bruise,
low shatter bruise, fair
AOR09034-3
Lenticel scaring, growth
cracks, shatter bruise,
Fusarium, garbage
46
2014 KBREC- Statewide
Chip Comment
Russeting, smaller, not
bad, low bruise, black dot,
dents
Klamath Basin Potato Variety Development Summary 2014
2014 Regional Chip Trial
Location: OSU KBREC – Klamath Falls, OR
Planting Date: May 15
Harvest Date: September 23
Fertility: 180-80-200-215
Vine Kill Date: September 2
Days to Vine kill: 111
In-Row Spacing: 9.25 inch
Chipping potatoes comprise a significant portion of Klamath Basin acreage and identification of public
varieties suitable for export remains a high priority for Basin producers. Trials were initiated in 2008 and
2009 with funding from the Oregon Potato Commission to identify acceptable chipping varieties for
export markets using advanced selections and recently released varieties from the Tri-State, Southwest,
North-central, and Eastern breeding programs and have continued annually. In 2014 seven varieties and
advanced chipping selections were evaluated for yield, grade, processing quality, and storability to
determine their suitability to meet existing export demands for raw product. All field data was collected
at the KBREC site. Tubers from each replication were placed in both short and long-term commercial
storage with processing evaluations conducted by Baley-Trotman Farms.
Stand Counts
 30 Day
Slow emergence: AC05153-1W (89%)
 45 Day
All entries had greater than 95% final emergence.
Plant and Tuber Growth and Development
 Average Tuber Number Per Plant
Most: AC03433-1W (9.2), AC03452-2W (8.0)
Least: Chipeta (5.5)
 Average Tuber Size (oz.)
Largest: Chipeta (8.0), AC05153-1W (7.5)
Smallest: AC03452-2W (4.6), AC00206-2W (5.0)
 Undersized Tubers (<4 oz.) cwt/Acre
Most: AC03452-2W (74), AC03433-1W (54)
Least: Chipeta (22), AC05153-1W (32)
Yield Data
 Total Yield (cwt/Acre)
Highest: AC03433-1W (694), AC05153-1W (622)
Lowest: AC00206-2W (403), AC03452-2W (415)
 Marketable Yield >4 oz. (cwt/Acre)
Highest: AC03433-1W (321), AC05153-1W (318)
Lowest: Chipeta (193), AC00206-2W (196)
47
Klamath Basin Potato Variety Development Summary 2014
 % Marketable Yield >4 oz.
Highest: A02138-2 and AC00206-2W (83%)
Lowest: Chipeta (57%)
Tuber Defect Incidence (40 tuber sample)
 Internal Defects
Impact Bruise: A02138-2 (7%)
Stem End Browning: AC05153-1W (12%), AC03433-1W (10%)
Total Yield
Entry
Atlantic
Chipeta
A02138-2
AC00206-2W
AC03433-1W
AC03452-2W
AC05153-1W
LSD (0.05)
(cwt/A)
534
505
461
435
694
415
623
STATS**
A
A
B
B
A
B
B
19
>4
oz.*
73
58
83
83
75
76
80
< 4 oz.*
Culls*
% of Total Yield
9
8
4
9
11
3
13
3
8
5
18
2
5
2
10
29
2
1
12
3
13
Yield US # 1 (>4 oz.)
Entry
(cwt/A)
Atlantic
Chipeta
A02138-2
AC00206-2W
AC03433-1W
AC03452-2W
AC05153-1W
LSD (0.05)
48
391
290
384
359
521
316
498
STATS**
BC
A
C
C
B
C
B
62
18
13
23
30
15
32
14
Skin
color
rating
(1-5 dark)
2.3
2.0
1.9
1.3
2.1
1.0
1.6
External Defects (1-5 none)
%*
4-6 oz.
Oversize
> 14 oz.
6-10
oz.
54
54
59
59
52
52
50
10-14
oz.
28
33
18
11
33
16
36
Green
Growth
crack
Knobs
2.4
3.1
4.4
4.0
3.6
4.3
3.9
4.4
4.0
4.5
4.8
4.6
4.9
4.8
5.0
5.0
4.8
4.9
5.0
5.0
5.0
Shatter
3.4
3.5
3.8
3.0
4.1
2.6
4.1
Klamath Basin Potato Variety Development Summary 2014
Average Tuber
Entry
Atlantic
Chipeta
A02138-2
AC00206-2W
AC03433-1W
AC03452-2W
AC05153-1W
Entry
Atlantic
Chipeta
A02138-2
AC00206-2W
AC03433-1W
AC03452-2W
AC05153-1W
Stand
%
Wt.
(oz.)
Number
tubers/plant
100
99
100
98
98
98
95
6.1
8.1
5.5
5.1
6.5
4.6
7.5
7.4
5.4
7.2
7.0
9.3
7.8
7.4
Rhizoc
(1-5 ex.)
3.0
3.0
4.0
4.6
4.5
5.0
3.6
Specific
Gravity
1.088
1.085
1.091
1.082
1.081
1.079
1.088
Internal Defects (%)****
HH
5.0
0.0
0.0
0.0
0.0
2.5
0.0
BC
0.0
2.5
0.0
2.5
0.0
0.0
2.5
SEB
0.0
2.5
2.5
2.5
10.0
2.5
12.5
VD
0.0
0.0
0.0
0.0
0.0
0.0
0.0
HB
5.0
2.5
5.0
0.0
0.0
0.0
2.5
IB
5.0
0.0
7.5
0.0
2.5
0.0
5.0
Russeting
(1-5 hvy)
Shape
(1-5 long)
Size
uniformity
(1-5 ex.)
Shape
uniformity
(1-5 ex.)
Eye
Depth
(1-5 shal.)
2.6
1.5
3.1
1.9
1.5
1.4
2.1
1.9
2.3
2.9
1.4
2.0
1.6
2.1
3.9
2.9
3.9
4.1
4.0
4.0
3.9
3.9
3.4
3.5
4.4
3.3
4.0
4.3
2.4
3.3
4.4
4.1
3.6
4.3
3.9
*Percent values may not total 100% due to rounding
**Entries showing the same letter are not significantly different at the 5% level
****Including >20oz. and #2’s
****Internal Defects: HH=hollow heart, BC= Brown Center, IBS= internal brown center, SEB=stem end browning,
VD= vascular discoloration, HB= hard bite, IB= impact bruise
49
Klamath Basin Potato Variety Development Summary 2014
Entry
2014 KBREC- Statewide
Chip Comment
Atlantic
Entry
Chipeta
Lumpy, oversized, folded
bud ends, black dot,
shatter bruised
Green, russeting, flat,
bruised
A02138-2
AC00206-2W
Dented, pears, oblong,
impact bruise, misshaped
russeting
AC03433-1W
Typy, no skinning, smooth,
smaller, minimal bruising
AC03452-2W
Dented, lumpy, folded
bud end, pointy stem end
AC05153-1W
Fusarium dry rot, some
black dot, russeting,
sticky stolon
50
2014 KBREC- Statewide
Chip Comment
Lenticel scaring, dented,
smooth, fair, shatter
bruised
Klamath Basin Potato Variety Development Summary 2014
2013 Regional Chip Processing Results
Chip processing data from storage was included in the 2012 report. The processing results of the 2013
Chip Variety Trial are included in the following graphs. Potatoes were processed in April 2014.
Likewise, 2014 processing data will be included in the 2015 report.
Specific Gravity
Entry
Atlantic
Chipeta
A00188-3C
AC00206-2W
AC01151-5W
AC03433-1W
AC03452-2W
CO02024-9W
CO02033-1W
CO02321-4W
CO03243-3W
Field
Storage
1.094
1.091
1.091
1.086
1.086
1.089
1.087
1.090
1.090
1.098
1.082
1.092
1.087
1.090
1.081
1.080
1.089
1.078
1.081
1.086
1.102
1.088
TDF %
12.20
10.00
8.80
10.50
10.93
0.80
1.40
17.21
11.07
17.70
10.18
Sugars
Solids
Dextrose
Sucrose
18.89
18.03
18.50
16.95
16.85
18.46
16.43
16.96
18.17
20.65
18.13
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1Specific
gravity measured out of field and after storage for 2 months at 500 F.
% Total Defects = % of finished chips out of grade; includes internal & external defects (e.g. HH, Green, Dark Color, etc.)
3Percent fresh weight basis measured after storage for 2 months at 500 F.
2
2013 State Chip Processing Results
Specific Gravity
Entry
Atlantic
Chipeta
NDOR071227CB-1
AOR01144-3
AOR08087-4
OR09253-1
OR09256-2
51
Field
Storage
1.082
1.083
1.073
1.081
1.083
1.089
1.082
1.086
1.089
1.085
1.075
1.089
1.101
1.083
TDF %
10.10
11.25
12.80
4.00
8.15
12.00
6.60
Sugars
Solids
Dextrose
Sucrose
17.88
18.43
17.69
15.87
18.45
20.57
17.32
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Klamath Basin Potato Variety Development Summary 2014
Klamath Basin Research and Extension Center
Potato Research Team
Brian A. Charlton
Assistant Professor
Principal Investigator
[email protected]
Prepared December 2014 by:
Nichole A. Baley
Faculty Research Assistant
[email protected]
Oregon State University
Klamath Basin Research and Extension Center
http://oregonstate.edu/dept/kbrec/
6941 Washburn Way
Klamath Falls, OR 97603
(541) 883-4590; Fax (541)883-4596
Oregon State University offers educational programs, activities, and materials without discrimination based on age,
color, disability, gender identity or expression, material status, national origin, race, religion, sex, sexual
orientation, or veteran’s status. Oregon State University is an Equal Opportunity Employer.
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