Klamath Experiment Station
Spring Wheat Variety Screening in the Klamath Basin, 1995
R.L. Dovell, R.S. Karow 2 , and G. Chilcote'
I
ntroduction
Spring wheat is grown on approximately
8,500 acres annually in the Klamath Basin.
Soft white (SW) and hard red (HR)
selections predominate; however, interest has
grown recently in the hard white (HW) class.
In 1995, spring wheat variety trials were
conducted at the KES in cooperation with
Oregon State University and Western Regional
plant breeding and evaluation programs. Coldtolerant, short-season cultivars are needed in
the Klamath Basin due to a short growing
season with the possibility of frost throughout
the growing season. Entries evaluated in these
trials included SW, HW, and HR selections.
Historically, there has been little disease or
insect pressure on small grains in the Klamath
Basin. However, the recent introduction of the
Russian wheat aphid has altered this situation.
Wheatstem maggot is endemic in the area and
generally causes only slight damage at the
KES. Under mild winter and warm spring
conditions in 1992 and 1993, significant
damage to cereal crops was experienced, with
up to 50 percent of the tillers affected at KES
and with serious crop losses in several commercial fields in the Lower Klamath Lake area.
Procedures
All small grain variety trials at the KES
were on land planted in potatoes the previous
year. Soils at the station include Poe, Fordney,
2/
and Hosley series, all of which have a fine
loamy to sandy texture, and are moderately
deep and somewhat poorly drained. All plots
were sprinkler irrigated.
All trials were arranged in a randomized
complete block design with three or four
replications. Plots at the KES were planted on
May 17. Irrigated and unirrigated organic soil
sites were planted on June 8 and 12, respectively. Seed was planted at a depth of 2 inches.
The seeding rate for wheat trials was 80 lb/A.
All plots were fertilized with 100 lb N, 60 lb
P205 , and 44 lb S/A at time of seeding. Plots
measured 5 x 20 feet, with 10 rows at 6-inch
spacing. At KES, Bromoxynil and MCPA were
applied at labeled rates to control broadleaf
weeds. Weed control at organic soil sites was
achieved with a mixture of 2,4-D and Banvel.
Plots were harvested in late September at the
KES and in late October at off-station sites
using a plot combine with a 5-foot wide
header. Grain yield was recorded for all plots.
Test weight was measured in only one replication.
Results and Discussion
Western Regional Spring Wheat
Nursery
Wheat yields at KES were lower in 1995
than in the previous five years due to poor
stand establishment and late planting due to an
Associate Professor and Research Technician, respectively, Klamath Experiment Station,
Klamath Falls, OR.
Professor, Crop and Soil Science Department, Oregon State University, Corvallis, OR.
Acknowledgments: Henzel Farms provided the off-station site and crop care.
22 KLAMATH EXPERIMENT STATION 1995
Klamath Experiment Station
Spring Wheat Variety Screening in the Klamath Basin, 1995
unusually wet spring. Seed was inadvertently
planted at a 2 inch planting depth instead of 1
inch. This allowed attack by common root rot
on the emerging coleoptile and resulted in
reduced stands. Late planting prevented
additional tillering that may have compensated
for lower plant density.
The highest yielding entry in the trial in
1995 was ID 488 (Table 1). Other entries with
yields not significantly different than ID 488 in
1995 include Alpowa, UT 1117, ID 448, ID
456, UT 1175, ID 459, and ID 474. This is
the first year that ID 488 has been grown at
KES and further testing will be required to
assess its adaptation in the Klamath Basin.
Another Idaho soft white entry, ID 448, has
consistently been a top yielding variety for
three years and is the highest yielding variety
over a three-year period (Table 2). The next
highest yielding soft white entries over a threeyear period were Penawawa and Alpowa.
Alpowa is a soft white wheat recently released
from Washington State. All three of these
entries had test weights averaging above 62 lb/
bu over a three-year period and have similar
plant heights and heading dates (Table 3).
Statewide Spring Wheat Trials
Statewide spring wheat variety trials were
established at three different locations in
Klamath County in 1995. The 21-entry trial
was located at the KES on mineral soil, and at
two organic soil locations on the Lower
Klamath Lake. One organic soil site was
irrigated by overhead sprinkler irrigation. The
other site was flood irrigated prior to planting,
with no further irrigation. In general, the yield
potential of the two irrigated sites is similar, as
is reflected in the three-year trial means at each
site. In contrast, the unirrigated organic soil
site is less productive and has a trial mean yield
that is only 85 percent of the irrigated organic
soil site. Although the two irrigated sites have
similar yields, the relative performance of
varieties at the two sites is quite different.
Irrigated Mineral Soil Site
Yield trends over the past three years at
KES were similar to those seen in the Western
Regional Spring Wheat Nursery discussed
above. Yields were reduced in 1995 by late
planting and a severe infestation of common
root rot. Treasure was the highest yielding
entry in the trial in 1995, followed closely by
ID 448 and Alpowa (Table 4). All these
entries are soft white lines. Two triticale
varieties, Juan and Victoria, were also included
in this trial. They produced yields significantly
lower than the highest yielding soft white
entries mentioned above.
The hard white line ID 377S was the fourth
highest yielding entry in the trial in 1995 and
has been one of the highest yielding entries in a
number of trials over a four-year period. It has
good milling and baking quality and is being
considered for release by the University of
Idaho.
Irrigated Organic Soil Site
Grain yields at this site in 1995 were
roughly half the long-term average for this and
similar sites in the Klamath Basin. Yield
reduction may be attributed to late planting,
frost damage, and low level infestation of
barley stripe rust. Alpowa was the highest
yielding entry in the trial in 1995 (Table 5).
Other entries with yields not significantly lower
than Alpowa include ID 377S, ID 448, Juan,
KLAMATH EXPERIMENT STATION 1995 23
Klamath Experiment Station
Spring Wheat Variety Screening in the Klamath Basin, 1995
Penawawa, and Wawawai. It should be noted
that the top three yielding entries at this site
were among the highest yielding lines at the
mineral soil site as well.
Unirrigated Organic Soil Site
A severe mid-August frost at the
unirrigated Lower Lake site severely damaged
heads in the early stages of grain fill, resulting
in blasted heads and almost total yield loss.
Due to this severe damage, the unirrigated
Lower Lake site was not harvested.
OSU Hard White Spring Wheat
Variety Trial
Two of the highest producing entries in the
OSU Hard White Spring Wheat Variety Trial
in 1995 were ID 03775(SPHWE10) and ID
03775(WRSWN6) (Table 6). These are
actually two different seed sources of ID 377S.
Over a two-year period, ID 377S has been the
second highest yielding entry in the trial,
exceeded only by SERI 82 (Table 7). Entries
that produced significantly higher yields than
Klasic, the current industry standard, include
OR 4870453, SERI 82, OR 4895181, OR
484013, and OR 4870255. However, all of
these entries have a later heading date than
Klasic, which may be a disadvantage in the
Klamath Basin (Table 8). OR 4870279 produced yields equivalent to Klasic in this trial
over a three-year period and much higher
yields in the Western Regional trial. This HW
line has good baking quality and may be
released if yields in other areas of the Pacific
Northwest justify it.
OSU Hard Red Spring Wheat Variety
24 KLAMATH EXPERIMENT STATION 1995
Trial
Standard HR spring wheat varieties in the
Klamath Basin are Westbred 906R and Yecora
Rojo. Spillman, a recently released variety, is
increasing in acreage. There was not a significant difference in grain yield among these
varieties in the 1995 trial (Table 9). However,
over a three-year period Spillman produced
significantly higher yields than Westbred 906R
(Table 10). The highest yielding entries in this
trial in 1995 included OR 4900041, OR
4920002, and OR 4920028. This was the first
year for OR 4920028 to be in the trial, but OR
4900041 and OR 4920002 have been in the
trial three years and are the two highest producing entries over a three-year period. Both
of these experimental entries produced significantly more grain than Spillman over a threeyear period (Table 10). Another entry that
should be noted is OR 4910028, which is the
third highest yielding entry over a three-year
period. All three of these experimental lines
have produced high test weights and are of
comparable height to Spillman and Westbred
906R (Table 11). The heading date of OR
4910028 is only one day later than Yecora
Rojo (Table 11). Grain baking quality is an
important consideration in the selection of HR
wheat varieties. Further evaluation of baking
quality of top yielding entries will be needed
prior to release of these lines.
Soft White Spring Wheat Variety
Trial
OR 4880013 was among the highest
yielding entries in the trial in 1995 (Table 12)
and was the highest yielding entry over a
Klamath Experiment Station
Spring Wheat Variety Screening in the Klamath Basin, 1995
three-year period (Table 13). Centennial was
the second highest yielding entry over the same
period. Centennial is a recent release from the
University of Idaho that was planted in joint
trials at KES and the Intermountain Research
and Extension Center from 1989 to 1991.
Yields of this line were comparable or superior
to all released SW varieties at both locations.
Centennial is also an earlier maturing variety.
It reached 50 percent heading earlier than all
other entries except one over a three-year
period (Table 14). Soft white wheat varieties
have been slow to mature in the cool fall
conditions common in the Klamath Basin. The
development of an earlier maturing, high
yielding SW variety should help producers
who choose to grow this commodity in the
Basin. Further plot scale testing and small
field scale testing of this variety is warranted
and should be undertaken prior to large field
scale planting.
KLAMATH EXPERIMENT STATION 1995 25
Klamath Experiment Station
Table 1. 1995 Western Regional Spring Wheat Nursery.
Grain yield, test weight, lodging, plant height, and date of 50% heading in Julian days (number of days after
January 1) of spring wheat lines planted in the 1995 Western Regional Spring Wheat Nursery. Plots were
established on May 17 at Klamath Experiment Station, Klamath County, OR.
Entry
Variety or
selection
Type'
Test
wt
Lodge
Height
50%
Heading
lb/A
lb/bu
%
inches
Julian
1
2
3
4
5
McKay
Federation
Penawawa
Klasic
Serra
HR
SW
SW
HW
HR
4060
3630
4110
2770
3430
62.0
59.5
62.0
64.0
60.0
0
0
0
0
0
28
35
30
22
26
196
198
198
189
193
6
7
8
9
10
Alpowa
Wawawai
UT1117
ID 448
OR 487374
SW
SW
HR
SW
HW
4590
3850
4520
4970
3140
63.5
62.0
63.0
62.5
60.5
0
0
0
0
0
31
31
31
28
20
198
196
198
198
195
11
12
13
14
15
OR 487410
OR 489224
ID 456
ID 462
OR 488372
HR
SW
SW
HR
HW
3850
3550
4850
4240
3490
60.5
60.5
63.0
63.5
63.0
0
0
0
0
0
30
26
31
30
28
197
198
198
194
198
16
17
18
HW
HR
HR
HR
HW
3800
4140
61.0
62.0
61.0
62.5
64.0
0
0
0
0
0
28
19
20
OR 895181
UT 2464
UT1146
UT1175
CA896
30
30
31
30
198
198
195
197
194
21
22
23
24
25
ID 459
ID 469
ID 474
ID 476
ID 488
SW
SW
4780
4290
4910
3590
5100
62.0
63.0
63.5
61.5
0
0
0
0
0
28
26
30
24
26
198
189
195
191
191
26
27
28
29
30
ID 492
ID 494
ML 316402
SDM 50014
FMBR 9154
HR
HW
63.5
64.0
62.5
63.0
62.0
0
0
30
28
192
191
HW
HR
HR
4280
3900
4360
3180
3840
0
0
0
30
30
24
195
198
189
31
FMBR 5783
OR 493032
OR 487401
HR
HR
HR
3970
4250
4050
61.0
64.0
64.0
0
0
0
24
28
198
195
198
4050
600
10
62.3
--
0
0
0
28
32
33
SW
HR
SW
Mean
LSD (0.05)
CV (%)
1
4300
4510
3410
62.0
30
HR, SW, and HW denote hard red, soft white, and hard white spring wheat
lines, respectively.
26
Yield
KLAMATH EXPERIMENT STATION 1995
195
1
0
Klamath Experiment Station
Table 2. Three-Year Summary of Western Regional Spring Wheat Nursery.
Summary of grain yield of the Western Regional Spring Wheat Nursery grown from 1993 to 1995. Two-year
averages represent 1995 and 1994 grain yields. Plots were established at Klamath Experiment Station,
Klamath County, OR.
Variety or
selection
Yield
Type'
3-year Avg
1995
1994
1993
2-year Avg
lb/A
lb/A
lb/A
lb/A
rank
lb/A
rank
McKay
Federation
Penawawa
Klasic
Serra
HR
SW
SW
HW
HR
4060
3630
4110
2770
3430
6230
4940
7750
6270
6500
5500
4980
6120
4900
5060
5140
4280
5930
4520
4970
12
18
2
17
14
5260
4520
5990
4650
5000
5
11
2
9
8
Alpowa
Wawawai
UT1117
ID 448
OR 487374
SW
SW
HR
SW
HW
4590
3850
4520
4970
3140
7020
6310
6550
7320
5350
5270
4900
5190
5950
4380
5800
5080
5530
6150
4250
3
13
8
1
19
5620
5020
5420
6080
4290
3
7
4
1
12
OR 487410
OR 489224
ID 456
ID 462
OR 488372
HR
SW
SW
HR
HW
3850
3550
4850
4240
3490
6790
5720
6460
6360
6320
4910
4640
5320
4630
5650
5300
4900
9
16
5
10
15
5180
4640
6
10
OR 895181
UT 2464
UT 1146
UT1175
CA 896
HW
HR
HR
HR
HW
3800
4140
4300
4510
3410
7670
6240
6980
6660
5730
5190
5640
5580
4
11
6
7
ID 459
ID 469
ID 474
ID 476
ID 488
SW
SW
SW
HR
SW
4780
4290
4910
3590
5100
ID 492
ID 494
ML 316402
SDM 50014
FMBR 9154
HR
HW
HW
HR
HR
4280
3900
4360
3180
3840
FMBR 5783
OR 493032
OR 487401
HR
HR
HR
3970
4250
4050
Mean
LSD (0.05)
CV (%)
4050
600
10
6500
660
7
5150
460
6
5240
480
9
5140
370
8
HR, SW, and HW denote hard red, soft white, and hard white spring wheat lines,
respectively.
1
KLAMATH EXPERIMENT STATION 1995 27
Klamath Experiment Station
Table 3. General Summary of Western Regional Spring Wheat Nursery.
Grain yield, test weight, lodging, plant height, and date of 50% heading in Julian days (number of days after
January 1) of spring wheat lines planted in the Western Regional Spring Wheat Nursery from 1993 to 1995.
Values represent three-year average of plots at Klamath Experiment Station, Klamath County, OR.
Type'
Yield
Test
wt
Lodge
Height
50%
Heading
lb/A
rank
Ib/bu
%
inches
Julian
HR
SW
5260
4520
5
11
61.0
602
0
0
31
42
192
197
SW
HW
HR
5990
4650
5000
2
9
8
62.2
63.3
61.3
0
0
0
32
25
30
193
187
189
SW
SW
HR
SW
HW
5620
5020
5420
6080
4290
3
7
4
1
12
63.0
32.5
62.2
62.0
60.7
0
1
0
0
0
32
33
34
31
21
195
192
194
194
190
HR
SW
5180
4640
6
10
61.0
59.7
0
0
32
26
193
194
59.1
1
1
0
NS
1
31
4
7
192
1
1
5140
360
8
HR, SW, and HW denote hard red, soft white, and hard white spring wheat
lines, respectively.
1
28
KLAMATH EXPERIMENT STATION 1995
Klamath Experiment Station
Table 4. 1995 OSU Spring Wheat Trial (Irrigated mineral soil site).
Grain yield, test weight, percent protein, lodging, plant height, and date of 50% heading in Julian days (number
of days after January 1) of spring wheat and triticale lines planted in the 1995 State-wide Variety Testing
Program. Plots were established on May 17 on irrigated mineral soil, at Klamath Experiment Station, Klamath
County, OR.
Variety or
selection
Test
wt
Plant
Protein Lodging height
50%
Heading
lb/A
Ib/bu
%
inches
Julian
SW
Club
SW
SW
HW
5200
3470
4260
4330
5190
62.8
59.6
61.9
58.5
62.0
11.3
12.5
11.9
11.3
12.6
0
0
0
0
0
31
28
24
30
30
202
194
194
199
192
SW
SW
5470
4950
Klasic
Juan
OR 8510
HW
TRIT
HR
3120
4070
3760
61.6
62.3
62.0
53.4
61.7
10.6
11.4
13.8
10.5
12.7
0
0
0
30
26
20
36
28
198
194
189
199
Owens
Penawawa
Treasure
Victoria -RSI
Wakanz
SW
SW
SW
TRIT
SW
4380
4730
5620
3300
4790
61.8
61.7
61.8
52.4
61.5
11.5
11.8
0
30
27
192
196
196
200
203
Wawawai
WPB Vanna
WPB 926R
WPB 936R
Yecora Rojo
SW
SW
HR
HR
HR
4010
3090
3380
2830
2950
62.1
58.8
61.2
58.9
61.8
12.0
11.6
13.7
14.2
13.9
0
Kuhlm
HR
3390
60.3
4110
60.4
Alpowa
Calorwa
Centennial
Dirkwin
ID 377S
ID 448
ID 471
Mean
LSD (0.05)
CV (%)
Type' Yield
11.1
10.9
11.3
0
0
0
0
0
0
28
33
31
195
0
0
0
0
31
28
28
24
19
193
197
14.4
0
30
191
12.1
0
NS
0
28
195
3
3
2
2
191
191
190
1 HR, SW, HW, Club, and TRIT denote hard red, soft white, hard white, and club spring
wheat and triticale lines, respecti\ely.
KLAMATH EXPERIMENT STATION 1995 29
Klamath Experiment Station
Table 5. 1995 OSU Spring Wheat Trial (Irrigated mineral soil site).
Grain yield and test weight of spring wheat and triticale lines planted in the 1995 State-wide Variety Testing
Program. Plots were established on June 8 on irrigated organic soil, in Klamath County, OR.
Entry
Variety or
selection
Type'
Yield
Test
wt
lb/A
Ib/bu
1
2
3
4
5
Alpowa
Calorwa
Centennial
Dirkwin
ID 377S
SW
SW
SW
SW
HW
3740
1360
1460
2680
3240
55.0
42.0
53.0
47.0
52.0
6
7
8
9
10
ID 448
ID 471
Klasic
Juan
OR 8510
SW
SW
HW
TRIT
HR
3170
1610
1570
3020
580
52.5
49.0
36.5
38.0
49.0
11
12
13
14
15
Owens
Penawawa
Treasure
Victoria -RSI
Wakanz
SW
SW
SW
TRIT
SW
1670
2950
1900
2390
2050
44.5
51.5
50.5
37.0
47.5
16
17
18
19
20
Wawawai
WPB Vanna
WPB 926R
WPB 936R
Yecora Rojo
SW
SW
HR
HR
HR
2950
2360
1080
900
1030
47.5
50.5
45.0
39.5
38.0
21
Kuhlm
HR
3470
55.0
2150
810
23
46.7
Mean
LSD (0.05)
CV (°./c4
1 HR, SW, HW, and TRIT denote hard red, soft white, and hard white
spring wheat and triticale lines, respectively.
30
KLAMATH EXPERIMENT STATION 1995
Klamath Experiment Station
Table 6. 1995 OSU Hard White Spring Wheat Nursery.
Grain yield, test weight, lodging, plant height, and days to 50% heading of OSU hard white spring wheat elite
varieties at the Klamath Experiment Station, OR, 1995.
Entry
Variety or
selection
Yield
Test
wt
Lodge
Plant
height
50%
Heading
lb/A
Ib/bu
%
inches
Julian
1
2
3
4
5
Klas ic
OR 484013
OR 4870279
OR 4870453
OR 4870255
3290
3780
3700
3940
3560
64.0
62.5
65.5
62.5
63.5
0
0
0
0
0
18
28
26
24
26
189
200
197
201
191
6
7
8
9
10
OR 4870374
OR 4880372
OR 4895181
ID 03775 (SPHW
OR 488528
2260
3180
4100
4190
3330
58.5
64.5
60.0
64.0
64.0
0
0
0
0
0
18
30
28
28
24
194
198
199
192
195
11
12
13
14
15
SERI 82
OR 918090
ID 03775 (WRS1A
OR 4920074
OR 4920090
3560
2650
4070
3780
3590
61.5
62.5
64.5
62.0
60.5
0
0
0
0
0
24
26
26
28
28
198
200
191
195
198
16
17
18
19
20
OR 4920092
OR 4920105
OR 9437524
OR 9437525
OR 9437534
3510
3720
3150
3090
3740
60.0
63.5
61.0
62.5
61.5
0
0
0
0
0
26
28
26
24
28
199
198
195
191
195
21
22
23
24
25
OR 4920274
OR 4920276
OR 4920278
OR 4920283
OR 4920292
3130
2890
3370
3330
2910
64.0
63.0
61.5
63.0
61.5
0
0
0
0
0
24
26
28
24
26
198
195
199
198
193
26
27
28
29
30
OR 4880287
OR 4920301
OR 4920311
OR 4920312
OR 4920313
3080
2600
3240
3080
3100
58.5
62.5
63.0
64.5
62.5
0
0
0
0
0
20
26
24
28
24
200
198
199
197
198
31
32
33
OR 938964
OR 938965
OR 938966
3150
2860
2970
65.0
63.0
63.0
0
0
0
22
20
20
188
190
188
3330
690
15
62.5
--
0
NS
0
25.0
196
2
1
Mean
LSD (0.05)
CV (%)
-
KLAMATH EXPERIMENT STATION 1995 31
Klamath Experiment Station
Table 7. Three-Year Yield Summary of OSU Hard White Spring Wheat Nursery.
Summary of grain yield of the OSU Hard White Spring Wheat Elite Nursery grown from 1993 to 1995. Two-year
averages represent 1995 and 1994 grain yields. Plots were established at Klamath Experiment Station, Klamath
County, OR.
Yield
1995
1994
1993
lb/A
lb/A
lb/A
Klas ic
3290
OR 484013
5780
5910
2960
4100
OR 4870279
3780
3700
5860
OR 4870453
3940
6570
OR 4870255
3560
OR 4870374
OR 4880372
2260
3180
OR 4895181
4100
OR 488528
SERI 82
Variety
2-Year Avg
lb/A
3-Year Avg
rank
lb/A
rank
4010
4600
4380
9
4
4540
8
3590
4850
4780
6
7
4570
5250
3
6150
3800
4860
5
5970
2960
4110
5780
3380
4480
6120
4600
5110
3330
5720
3560
7150
3850
4310
OR 918090
ID 377S
2650
4130
OR 4920074
OR 4920090
OR 4920092
3780
3590
3510
OR 4920105
3720
OR 9437524
3150
OR 9437525
OR 9437534
3090
3740
OR 4920274
3130
OR 4920276
2890
OR 4920278
3370
OR 4920283
OR 4920292
OR 4880287
3330
2910
OR 4920301
2600
OR 4920311
OR 4920312
OR 4920313
3240
3080
3100
OR 938964
3150
OR 938965
2860
OR 938966
2970
Mean
LSD (0.05)
CV (%)
3330
680
15
6
1
5030
4500
5
11
3730
10
10
4110
8
4
4940
4520
5360
9
1
4300
5010
3
7
5390
4020
6400
5270
12
2
3080
6040
1100
14
32 KLAMATH EXPERIMENT STATION 1995
3810
680
12
4710
660
14
4460
490
13
2
Klamath Experiment Station
Table 8. Three-Year Summary of OSU Hard White Spring Wheat Nursery.
Grain yield, test weight, lodging, plant height, and date of 50% heading in Julian days (number of days after
January 1) of spring wheat lines planted in the OSU Hard White Spring Wheat Elite Nursery from 1993 to 1995.
Values represent three-year average of plots at Klamath Experiment Station, Klamath County, OR.
Entry
Variety or
selection
Test
wt
Yield
lb/A
rank
lb/bu
Lodge
Height
50%
Heading
inches
Julian
1
2
3
4
5
Klasic
OR 484013
OR 4870279
OR 4870453
OR 4870255
4010
4600
4380
5030
4500
9
4
6
1
5
632
62.5
63.0
62.3
642
0
0
0
0
0
22
30
28
29
31
185
196
192
196
188
6
7
8
9
10
OR 4870374
OR 4880372
OR 4895181
OR 488528
SERI 82
3730
4110
4940
4300
5010
10
8
3
7
2
60.5
64.3
61.0
63.8
61.8
0
0
0
0
0
21
32
32
26
29
190
196
193
190
193
62.7
2
2
0
NS
0
28
2
5
192
1
1
Mean
LSD (0.05)
CV ro)
4460
490
10
KLAMATH EXPERIMENT STATION 1995
33
Klamath Experiment Station
Table 9. 1995 OSU Spring Hard Red Wheat Nursery.
Grain yield, test weight, lodging, plant height, and days to 50% heading of OSU hard red spring wheat elite
varieties at the Klamath Experiment Station. OR. 1995.
Entry
Variety or
selection
Type'
Test
wt
Lodge
Height
50%
Heading
lb/A
Ib/bu
%
inches
Julian
1
2
3
4
5
McKay
Westbred 906R
Yecora Rojo
Spillman
OR 485010
HR
HR
HR
HR
HR
3780
3330
3120
3630
3530
60.0
61.0
64.5
60.0
64.0
0
0
0
0
0
30
28
18
28
30
195
191
190
195
197
6
7
8
9
10
Klasic
OR 4870400
OR 4870401
OR 4880189
OR 4870410
HW
HR
HR
HR
HR
3150
3200
3090
3280
3650
63.5
61.5
59.0
62.0
61.5
0
0
0
0
0
22
30
31
26
28
189
198
198
194
195
11
12
13
14
15
OR 4895019
OR 4895103
OR 4930032
OR 4920002
OR 4910028
HR
HR
HR
HR
HR
3500
3890
3730
4270
3840
63.5
62.5
63.5
61.5
61.0
0
0
0
0
0
26
28
26
26
28
191
198
196
198
190
16
17
18
19
20
OR 4900041
Express
WPB 926
WPB 936
OR 4930034
HR
HR
HR
HR
HR
4300
3680
3430
3470
3390
62.0
59.0
60.0
60.5
62.0
0
0
0
0
0
28
26
28
26
20
198
198
191
191
191
21
22
23
24
25
OR 4895011
OR 918030
OR 3900362
OR 4920023
OR 4920024
HR
HR
HR
HR
HR
3890
3740
3670
3600
3250
64.5
64.5
61.5
62.0
61.5
0
0
0
0
0
26
28
24
26
26
191
198
195
194
194
26
27
OR 4920028
TUI
HR
HR
4060
3500
64.5
64.5
0
0
30
28
193
198
3590
530
10
62.1
—
—
0
NS
0
27
—
194
1
0
Mean
LSD (0.05)
CV (°/4
1
Yield
—
HR and HW denote hard red and hard white spring wheat lines, respectively.
34 KLAMATH EXPERIMENT STATION 1995
Klamath Experiment Station
Tablet°. Three-Year Yield Summary of OSU Hard Red Spring Wheat Nursery.
Summary of grain yield of the OSU Hard Red Spring Wheat Elite Nursery grown from 1993 to 1995. Two-year
averages represent 1995 and 1994 grain yields. Plots were established at Klamath Experiment Station,
Klamath County, OR.
Yield
Variety
Type l
2-Year Avg
3-Year Avg
1995
1994
1993
lb/A
lb/A
lb/A
lb/A
rank
lb/A
rank
McKay
Westbred 906R
Yecora Rojo
Spillman
OR 485010
HR
HR
HR
HR
HR
3780
3330
3120
3630
3530
6270
5790
6050
6340
5880
4550
3950
4060
4560
4280
5020
4560
4580
4980
4700
4
19
18
7
15
4870
4360
4410
4840
4560
6
15
14
7
13
Klasic
OR 4870400
OR 4870401
OR 4880189
OR 4870410
HW
HR
HR
HR
HR
3150
3200
3090
3280
3650
6020
6560
5970
6160
6400
3260
4860
5140
4410
4360
4580
4880
4530
4720
5020
17
11
20
14
5
4140
4870
4730
4620
4800
16
5
11
12
10
OR 4895019
OR 4895103
OR 4920002
OR 4910028
OR 4900041
HR
HR
HR
HR
HR
3490
3890
4270
3840
4300
6900
6110
6950
6120
6590
4510
4500
4680
4950
4970
5200
5000
5610
4980
5440
3
6
1
8
2
4970
4840
5300
4970
5280
4
8
1
OR 4895011
OR 4930032
Express
WPB 926
WPB 936
HR
HR
HR
HR
HR
3890
3730
3680
3430
3470
6030
5290
6050
5770
6400
4550
4960
4510
4870
4600
4940
9
21
12
16
10
4820
9
OR 4930034
OR 918030
OR 3900362
OR 4920023
OR 4920024
HR
HR
HR
HR
HR
3390
3840
3670
3600
3250
6200
4790
13
OR 4920028
TUI
HR
HR
4060
3500
Mean
LSD (0.05)
CV (%)
1
3590
530
10
6180
680
10
4470
650
10
4880
450
10
3
2
4770
400
10
HR and HW denote hard red and hard white spring wheat lines, respectively.
KLAMATH EXPERIMENT STATION 1995 35
Klamath Experiment Station
Table 11. Three-Year Summary of OSU Hard Red Spring Wheat Nursery.
Grain yield, test weight, lodging, plant height, and date of 50% heading in Julian days (number of days after
January 1) of spring wheat lines planted in the OSU Hard Red Spring Wheat Elite Nursery from 1993 to
1995. Values represent three-year average of plots at Klamath Experiment Station, Klamath County, OR.
Entry
1
Variety or
selection
Yield
Type
Test
wt
Lodge
Height
50%
Heading
lb/A
rank
Ib/bu
%
inches
Julian
2
3
4
5
McKay
Westbred 906R
Yecora Rojo
Spillman
OR 485010
HR
HR
HR
HR
HR
4870
4360
4410
4840
4560
6
15
14
7
13
62.3
61.5
63.3
61.5
642
0
0
0
0
0
31
30
21
32
32
192
188
186
191
193
6
7
8
9
10
Klasic
OR 4870400
OR 4870401
OR 4880189
OR 4870410
HW
HR
HR
HR
HR
4140
4870
4730
4620
4800
16
5
11
12
10
63.8
63.7
62.7
62.5
62.0
0
0
0
0
0
24
33
34
30
32
185
196
195
190
192
11
12
13
14
15
OR 4895019
OR 4895103
OR 4920002
OR 4910028
OR 4900041
HR
HR
HR
HR
HR
4970
4840
5300
4970
5280
4
8
3
2
63.8
632
62.5
61.8
63.5
0
0
0
0
0
30
32
30
31
30
188
194
194
187
194
16
OR 4895011
HR
4820
9
64.2
0
29
189
62.9
2
2
0
NS
0
30
2
5
191
1
1
Mean
LSD (0.05)
CV (N
4770
400
10
36 KLAMATH EXPERIMENT STATION 1995
1
Klamath Experiment Station
Table 12. 1995 OSU Spring Soft White Wheat Nursery.
Grain yield, test weight, lodging, plant height, and days to 50% heading of OSU soft white spring wheat elite
varieties at the Klamath Experiment Station, OR, 1995.
Entry
Variety or
selection
Type'
Test
wt
Height
50%
Heading
lb/A
lb/bu
inches
Julian
62.5
62.5
60.0
63.0
63.0
0
0
0
0
0
30
28
33
199
194
200
200
194
0
0
0
0
33
31
26
28
30
207
204
196
4260
3000
60.5
63.5
60.5
54.0
65.5
3600
3280
4420
4230
3980
60.0
51.0
59.0
62.0
63.0
0
0
0
0
0
28
43
39
200
199
197
199
199
2960
3910
62.5
0
0
0
28
26
30
0
NS
0
31
1
2
3
4
5
Dirkwin
Centennial
Penawawa
WA 7677
ORS 8501
SW
4210
SW
SW
SW
SW
4140
3880
6
7
8
9
10
OR 487570
OR 4880013
WUC 657
OR 4900154
OR 4900085
SW
HW
Club
HW
2850
4800
3650
11
12
13
14
15
OR 4895224
Juan
M92-1535
OR 4920021
OR 4920095
16
OR 4930236
OR 948037
OR 4930240
17
18
-Trit
SW
HW
HW
SW
SW
Mean
LSD (0.05)
CV (%)
1
Yield
4160
4170
4930
3910
500
10
63.0
60.5
60.9
Lodge
0
31
30
30
30
201
191
198
192
204
199
2
1
SW, HW, Club, and Trit denote soft white, hard white and club spring wheat lines,
and spring triticale respectiwly.
KLAMATH EXPERIMENT STATION 1995 37
Klamath Experiment Station
Table 13. Three -Year Summary of OSU Soft White Spring Wheat Nursery.
Summary of grain yield of the OSU Soft White Spring Wheat Nursery grown from 1993 to 1995. Two-year
averages represent 1995 and 1994 grain yields. Plots were established at Klamath Experiment Station,
Klamath County, OR.
Yield
Variety
Type'
2-Year Avg
3-Year Avg
1995
1994
1993
lb/A
lb/A
lb/A
lb/A
rank
lb/A
rank
Dirkwin
Centennial
Penawawa
ORS 8501
OR 487570
SW
SW
SW
SW
SW
4210
4140
3880
4170
2850
6280
7420
6810
7340
5350
4930
5450
4960
5310
4670
5250
5780
5340
5750
4100
9
2
7
3
15
5140
5670
5210
5610
4290
6
2
5
3
9
OR 4880013
OR 4900154
OR 4900085
OR 4895224
WA 7677
HW
HW
7330
5900
5920
5320
7080
5280
5500
4710
4340
6060
5080
4460
4460
5620
1
10
13
14
5
5800
5220
4540
4420
1
4
SW
4800
4260
3000
3600
4160
WUC 657
Juan
M92-1535
OR 4920021
OR 4920095
Club
Trit
SW
HW
HW
3650
3280
4420
4230
3980
6490
6810
6900
6540
6510
5070
5040
5660
5390
5250
11
12
4
6
OR 4930236
OR 948037
OR 4930240
SW
2960
3910
4930
Mean
LSD (0.05)
CV (%)
SW
8
3910
6530
5020
5220
5100
500
820
430
440
330
10
10
10
10
10
HW, Club, and Trit denote soft white, hard white and club spring wheat lines, and spring
triticale respectively.
38 KLAMATH EXPERIMENT
STATION 1995
7
8
Klamath Experiment Station
Table 14. Three-Year Summary of OSU Soft White Spring Wheat Nursery.
Grain yield, test weight, lodging, plant height, and date of 50% heading in Julian days (number of days
after January 1) of spring wheat lines planted in the OSU Soft White Spring Wheat Elite Nursery from
1993 to 1995. Values represent three-year average of plots at Klamath Experiment Station, Klamath
Entry
Variety
Height
50%
Heading
inches
Julian
195
190
195
191
200
rank
Ib/bu
60.3
63.0
60.5
63.3
60.8
0
0
0
0
0
32
30
36
33
62.3
58.7
64.0
60.5
0
0
35
32
0
0
32
43
199
199
188
195
61.5
3
3
0
NS
0
34
NS
20
195
1
1
5140
5
SW
SW
SW
SW
SW
5670
5210
5610
4290
6
2
5
3
9
6
7
8
9
OR 4880013
OR 4900154
OR 4900085
OR 4895224
HW
HW
5800
5220
4540
4420
1
4
7
8
Mean
LSD (0.05)
CV (%)
Lodge
lb/A
Dirkwin
Centennial
Penawawa
ORS 8501
OR 487570
1
2
3
4
1
Test
wt
Yield
Type l
5100
330
10
33
SW, and HW denote soft white, and spring wheat lines respectively.
KLAMATH EXPERIMENT STATION 1995
39