100
Statewide Cereal Variety Testing Program
in the Klamath Basin, 1993
R.S. Karow l , R.L. Dove1 2, and G. Chilcote 2
INTRODUCTION
Current variety performance data is required by Oregon cereal producers to make
intelligent variety selection decisions. To provide this information, a centrally
coordinated variety testing program was initiated in 1992. Both fall and spring planted
trials have been established at 11 locations throughout the state. On-station sites include
Ontario, Pendleton, Hermiston, Madras, Corvallis, Medford, and Klamath Falls.
PROCEDURES
The central team at OSU developed variety lists with input from each site, and
obtained and packaged seed. Cereal variety trials were planted at KES on October 24,
1992 and May 17, 1993. The trials were established on Fordney fine sandy loam that is
moderately deep and somewhat poorly drained. The previous crop was potatoes. The
crop was irrigated with solid set sprinklers.
Trials were arranged in a randomized complete block design with three replications.
Seed was planted at a depth of 1 inch with a seeding rate of 30 seed/ft 2 . All plots were
fertilized with 100 lb N, 60 lb P 2 05 , and 44 lb S/A at time of seeding. Plots measured 5 x
20 feet with a row spacing of 6 inches. Bromoxynil and MCPA were applied at labeled
rates to control broadleaf weeds. Crops were harvested in early September using a plot
combine with a 5-foot wide header. Plant height and lodging were recorded for all plots.
Heading date was only measured in the spring planted trial. Following harvest, combinerun seed was sent to Corvallis for processing. Grain yield, test weight, thousand kernel
weight, and seeds per pound were determined.
RESULTS AND DISCUSSION
Winter Barley Varieties
Average yield for winter barley was 4,740 lb/A, compared to 4,510 lb/A for spring
barley varieties in an adjacent area (Tables 1 and 2). Variability was high and yield
differences between varieties were not statistically significant. Significant differences
between varieties were found for plant height and test weight.
/ Oregon State University Extension Cereal Specialist, Corvallis, Or.
2 / Associate Professor and Research Technician, respectively, Klamath Experiment
Station, Klamath Falls, OR.
1
Acknowledgment: Partial financial support for this study from the Oregon Grains
Commission is gratefully recognized.
101
Spring Barley Varieties
Variability in yield within varieties was much less in spring barley lines than in the
winter trial. Steptoe produced the highest yield in the trial. Yields of Baroness, Colter,
and Maranna were not significantly lower than Steptoe yields.
Winter Wheat and Triticale
Fall planted wheat averaged 77.8 bu/A, compared to 69.2 bu/A in the spring
planted trial (Tables 3 and 4). The two highest yielding entries in the winter trial
included a soft white (SW) wheat called Red and a triticale variety, Celia. Several other
entries were not significantly lower in yield than these two entries. Most entries in this
trial were SW wheat; however, there were two triticale, one club wheat, and one hard
red (HR) wheat variety. Both the club and HR varieties produced significantly lower
yields than leading SW wheat and triticale varieties.
Spring Wheat and Triticale
Six SW wheat varieties, two HR wheat, one club wheat, and three triticale varieties
were included in this trial. Calora, the club wheat, produced significantly less grain than
two SW spring wheat varieties, Centennial and Owens (Table 4). Other entries with
relatively high yields included SW wheats, Treasure and Fieldwin, and triticales, Victoria
and Juan. The HR spring wheats failed to produce grain yields comparable to SW wheat
and triticale.
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Table 1. Results of 1993 Statewide variety testing program winter barley trial at the
Klamath Experiment Station, Klamath Falls, OR.
Selection
Class l
Height
Lodging
-- in -Boyer
Gwen
Hesk
Hundred
Kold
Onless
ORW4
ORW5
Pleisant
Scio
Sprinter
F
F
F
F
F
F
F
F
F
F
F
Mean
CV(%)
LSD(0.05)
1
/ Class: F - feeding
31
28
26
24
28
26
29
25
24
30
22
26
7
3
0
0
0
0
0
0
0
0
0
0
0
Seeds
per
pound
Yield
Test
weight
1000K
weight
lb/A
lb/bu
g
5150
4550
4480
4940
5110
5290
5130
4500
3670
4880
4390
51.5
49.7
50.3
48.2
49.9
47.1
51.1
50.1
51.3
51.0
49.2
40.5
40.4
39.8
34.2
35.7
50.2
44.8
40.7
43.7
43.5
36.6
11200
11240
11390
13280
12720
9030
10130
11140
10370
10420
12400
4740
22
NS
50.0
2
2.0
40.9
15
NS
11210
15
NS
103
Table 2. Results of 1993 Statewide variety testing program spring barley trial at the
Klamath Experiment Station, Klamath Falls, OR.
Selection
Baroness
Colter
Crest
Crystal
Maranna
Russell
Steptoe
Type s
2
6
2
2
6
6
6
Class 2
F/M
F/M
M
M
F
M
F
Mean
CV(%)
LSD(0.05)
1/
2/
Type - 2 Row, 6 Row
Class - F - feeding; M - malting
Seeds
per
pound
Heading
date
Yield
Test
weight
1000K
Julien days
lb/A
lb/bu
g
201
193
201
201
201
190
191
4990
4840
3470
4310
4770
4070
5110
54.0
51.0
53.9
54.9
52.8
51.6
51.4
50.1
44.2
49.4
50.5
40.8
42.6
52.1
9050
10280
9160
8980
11120
10660
6710
197
1
1
4510
9
740
52.8
1
0.8
47.1
3
2.8
9420
3
569
weight
104
Table 3. Results of 1993 Statewide variety testing program winter wheat and triticale trial
at the Klamath Experiment Station, Klamath Falls, OR.
Selection
Type s
Height
Lodging
-- in -Basin
Celia
Dews
Durheim Pride
Gene
Hoff
MacVicar
Madsen
Malcolm
Red
Rohde
Short Club
Stephens
W301
Whitman
Yamhill
Mean
CV(%)
LSD(0.05)
1
SW
TR
SW
SW
SW
HR
SW
SW
SW
SW
CL
CL
SW
SW
TR
SW
26
37
30
32
32
31
30
27
30
31
25
17
31
88
38
33
30
6
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Seeds
per
pound
Test
weight
1000K
weight
bu/A
lb/bu
g
71.2
100.6
85.4
85.4
87.0
37.6
94.2
84.3
97.2
102.5
86.5
18.0
93.9
76.3
61.4
74.0
60.8
57.9
62.4
62.4
61.9
61.4
60.8
61.1
61.0
60.5
61.3
40.7
60.0
58.6
53.3
59.6
43.2
52.7
49.6
49.6
47.4
46.5
56.2
47.0
52.3
43.4
41.7
35.6
56.3
56.5
55.4
48.0
10500
8610
9150
9150
9560
8760
8070
9660
8670
10450
10890
12740
8050
8050
8190
9460
77.8
22
29.0
58.9
2
1.6
46.9
7
5.3
9370
7
1015
Yield
/ Type: SW - soft white wheat; HR - hard red wheat; CL - club wheat; TR - triticale
105
Table 4. Results of 1993 Statewide variety testing program spring wheat and triticale trial
at the Klamath Experiment Station, Klamath Falls, OR.
Selection
Typel
Heading
date
Lodging
Julian Days --- %
Calora
Celia
Centennial
Dirkwin
Fieldwin
Juan
Klasic
Owens
Penawawa
Treasure
Victoria
WB926R
Yecora Rojo
Mean
CV(%)
LSD(0.05)
1
CL
IR
SW
SW
SW
'11Z
HW
SW
SW
SW
TR
HR
HR
201
215
197
201
211
203
192
200
200
204
197
194
193
201
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
Seeds
per
pound
Yield
Test
weight
1000K
weight
bu/A
ib/bu
g
60.1
60.8
85.0
59.0
72.3
74.1
67.1
81.5
63.3
76.1
73.1
64.6
62.0
59.9
50.4
61.3
58.0
52.3
51.1
62.1
60.9
59.9
57.2
51.8
60.1
61.1
43.0
54.2
43.0
50.0
41.0
56.1
45.9
47.6
46.9
45.2
49.0
52.6
46.3
10540
8370
10540
9070
11070
8090
9830
9540
9680
10040
9260
8620
9800
69.2
15
18.0
57.4
3
2.6
47.8
14
NS
9570
14
NS
/ Type: SW - soft white wheat; HR - hard red wheat; CL - club wheat; IR - triticale