115
Spring Small Grain Variety Trials
in the Klamath Basin, 1989
R.L. Dovel and C. Chilcote'
INTRODUCTION
In 1989 small grain variety trials were conducted at the Klamath Experiment Station in cooperation with plant breeding and evaluation programs
at Oregon State University, the Tulelake Field Station (University of California at Davis) and several Western Region 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. The presence of high winds in the area makes selection for lodging resistance desirable. In general there is little disease or insect
pressure on small grains in the Klamath Basin. However, the introduction
of the Russian wheat aphid could greatly alter that situation.
PROCEDURES
Most trials were established at the KES; however, an alternative site
on organic soil was also used for several trials. All small-grain variety
trials at the KES were on land planted in potatoes the previous year. Soils
at the station include Poe, Fordney and Hosley series, all of which have a
fine loamy to sandy texture and are moderately deep and somewhat poorly
drained. The off-station trials were on very deep, poorly drained, lake
bottom soils with high organic matter content. All plots at KES were
sprinkler irrigated, while only one organic soil test site was irrigated.
All trials were arranged in a randomized complete block design with
either three or four replications. Trials at the KES were planted between
April 25 and 27. Plots at the irrigated organic soil site were planted on
May 26 and the dryland study was established on May 31. Seed was planted
to a depth of one inch. The seeding rate for wheat trials was 80 lbs/A
while the barley and oat trials received 100 lbs/A. All plots were fertilized with 100 lbs N, 60 lbs P 2 0 5 , and 44 lbs S/A at time of seeding.
Plots measured 5 x 20 feet with a row spacing of six inches. At KES,
Bromoxynil and MCPA were applied at labeled rates to control broadleaf
weeds. Chemical weed control at the organic soil sites was achieved using a
mixture of 2,4-D and Banvel. Plots were harvested using a plot combine
with a five foot wide head. Plot yield was recorded for all plots. Test
weight was measured in only one replication. Percent plumps and thins was
measured in one replication of barley trials.
1/ Assistant Professor, Research Technician, respectively,
Klamath Experiment Station.
Acknowledgments: Henzel Farms provided the off-station site and crop care.
116
RESULTS AND DISCUSSION
Western Regional Spring Barley Nursery
Yields in the Western Regional Spring Barley Nursery were lower than
usual in 1989 due to a heavy infestation of common root rot. Steptoe, the
standard feed barley for this area, yielded almost two tons/A (Table 1).
The two standard malting varieties, Morex and Klages, yielded just over
3,000 lbs/A. Malting varieties which significantly outyielded Klages and
Morex include MT 83533, OR 8408 and OR 8411. A promising malting variety
which is being tested for malting quality, ORS 1, also had higher yields
than Morex. Other malting varieties which yielded more than 2 tons/A
include BA 4305, BA 8529, ID 71966, WA 944883, MT 851032 and PB 107. In
general, plumps were very high. MT83533 had only 0.6 percent thins.
Intermountain Regional Spring Barley Variety Trial
The Intermountain Regional Spring Barley Variety Trial is a joint
project of KES, Tulelake Field Station (TFS) and University of California
Extension personnel. A summary of two years data from KES and TFS represents yield potential of promising barley varieties on two distinct soil
types in the Klamath Basin. Soils on the KES are mineral soils while plots
at the TFS were located on organic lake bottom soils. Varieties have
performed quite differently at the two locations. Although Columbia was
the top yielder at KES, it did not outyield Steptoe at TFS (Table 2). Only
Advance and Gustoe performed better than Steptoe at both locations (Table
3). Three OSU lines were among the top five varieties at KES - OSB 783063,
ORSM 8424 and ORSM 8432. ORSM 8432 was the highest yielder of these lines
at TFS; however, yields were more than 700 lbs/A less than Steptoe.
Three malting varieties have shown potential at both locations. A tworow malting variety, B1202, had yields very close to Steptoe at both sites.
If contract incentives become available for this variety in the Klamath
Basin, B1202 could be a very good variety to grow in this region. Crystal,
a two-row malting variety recently released by WSU, has only been in the
trial one year. It yielded more than Steptoe at KES and slightly less than
Steptoe at TFS (Table 2). The OSU line, ORS 1, is in advanced stages of
malt-quality testing. It had higher yields than Crystal and yields similar
to B1202 at both sites. If adopted as a malting variety by industry, this
variety has great potential in the Klamath Basin.
Lower Lake Barley Variety Trials
The two trials planted on Lower Lake sites were managed differently.
One site was sprinkler irrigated throughout the season, while the other was
unirrigated. Micah was the highest yielding variety at the irrigated site,
exceeding the next highest variety, Gustoe, by almost 500 lbs/A (Table 4).
In sharp contrast, Micah was one of the lowest yielding varieties at the
dryland site (Table 5). This pattern has been seen in previous years. It
appears that Micah, while high yielding under high management conditions,
does very poorly when stressed. A similar situation is seen with Gustoe,though not as pronounced. It appears that Micah, like Gustoe, may be
117
considered for a high input situation; however, it should not be used
when drought stress is possible. Steptoe is still a very good choice on
organic soil sites. No variety yielded significantly higher than Steptoe
in either study.
Average yields were over 1100 lbs/A higher at the irrigated site.
Quality, as measured by test weight and percent thins, was much better on
the irrigated site (Tables 4 and 5). Under 1989 conditions, much of the
grain produced on unirrigated sites was sold at a 50 percent reduction in
price due to low test weight. When combined with lower yields the net
result was an economic loss.
Western Regional Spring Wheat Trials
Yields in the 1989 Western Regional Spring Wheat trials were down about
700 lbs/A from the 1988 trial with an average yield of just under 2 tons/A
(Table 6); however, test weights for the 1989 trial were very high,
averaging almost 65 lbs/bu.
The highest yielding HRS variety over a three-year period was ID 366
(Table 7). This variety has had good quality in Idaho. Quality samples
are currently being analyzed from material grown at KES. If quality is
adequate this variety will be seriously considered for release. Spillman,
a HRS variety released by WSU, yielded only slightly less than ID 366 over
a three-year period (Table 7). Although only Foundation seed is available
for planting in 1990, this variety may soon be seen in the Klamath Basin.
The OSU line OR 487400 was the highest yielding HRS variety in 1989 (Table
6). One-year's data is not sufficient to base decisions on; however,
this variety will be closely watched in the future.
Penewawa, a WSU release, was the highest yielding SWS variety over a
three-year period; however, for the two years that it has been in the
trial, ID 379 has had higher yields than Penewawa. Although Penewawa has
been the highest yielding entry in this trial, it has not outyielded
Fieldwin and Blanca, current standard SWS varieties, in the Intermountain
Spring Barley Variety Trial.
Intermountain Regional Spring Wheat Variety Trial
The Intermountain Spring Wheat Variety trial was planted at KES for the
second consecutive year in 1989. This trial is conducted in cooperation
with the Tulelake Field Station (TFS) and University of California Extension personnel in Siskiyou and Shasta Counties. Over a two-year period
Spillman, a HRS recently released by WSU, has yielded 169 and 118 percent
of Yecora Rojo at KES and TFS, respectively (Table 8 and 9). Baking quality of this new variety appears to be equivalent to Yecora Rojo. Currently,
only foundation class seed is available from WSU Foundation Seed. An OSU
HRS numbered line, ORS 85119, yielded similarly to Spillman at both KES and
TFS over a two-year period (99 and 91 percent of Spillman, respectively).
Bread quality of this line appears to be quite good and release by OSU is
being seriously considered.
118
A new market class of wheat, hard white spring wheat (HWS), has
received much interest and shows great promise. The current standard
variety, Klasic, has outyielded Yecora Rojo for two years at KES. However,
ORS 8413 an experimental HWS line, has yielded 177 percent of Klasic over
the same two-year period. Quality of ORS 8413 is still being tested. If
quality of this line is adequate, release is likely. In general, soft
white spring wheat (SWS) varieties outyield HRS varieties in the Klamath
Basin. The two SWS varieties which have been consistently high yielders at
both KES and TFS are Blanca and Fieldwin.
Organic Soil Spring Wheat Variety Trials
The high risk of growing wheat in the Klamath Basin can be seen in the
results from the wheat variety trials on organic soil over the past two
years. The problem of spring frosts is even more severe on dryland sites.
Identical trials were established at an unirrigated and irrigated site in
both 1988 and 1989. The trial at the unirrigated site was lost in 1988 and
yields and grain quality substantially reduced in 1989 due to frost. The
average yield of the irrigated trial in 1989 was over 1000 lbs/A greater
and test weights over 6 lbs/bu higher than the unirrigated trial (Table
10). Judging from these two years, wheat should only be grown on irrigated
sites on the Lower Klamath Lake.
The only variety at the unirrigated site with test weights above 50
lbs/bu was Waverly (Table 10). It also had the highest test weight in the
1989 irrigated trial. Very low test weights were recorded for Bliss and
Discovery. These are fairly long-season varieties and below-normal
temperatures in July and August prevented proper grain fill and maturation.
In 1989 the highest yielding soft white variety was Blanca and the
highest yielding hard red wheat was Spillman. Even the highest-yielding
varieties produced only about 1-1/2 tons/A in 1989 compared to over 3 tons
in 1988 (Table 11). Test weights were also significantly higher in 1988.
It is interesting to note that Blanca was the top-yielding soft white
variety under adverse and favorable conditions. Spillman also did well in
1988 and was only out-yielded by Discovery, which was an economic failure
in 1989. Blanca and Spillman appear to be the safest choices in the lower
lake environment.
Uniform Northwestern States Oat Nursery
Oat yields were very good at KES in 1989, averaging over 2 tons/A.
Test weights were exceptional, averaging over 41 lbs/bu (Table 12).
Border, yielded significantly higher than Cayuse in 1989. Over a threeyear period, Border is the highest yielding variety in the trial (Table
13). It yielded 120 percent of Cayuse over this period. Border appears
to lodge about the same as Cayuse in high input situations.
Several Aberdeen numbered lines look quite promising. Six of the seven
highest yielding lines over a three-year period are Aberdeen lines (Table
13). The Aberdeen variety, 82Ab248, had yields very similar to Border over
a three-year period. It is more lodging resistant than Cayuse or Border
and has very good test weights. It is being considered for release as a
locally adapted variety. Another released variety that may be of interest
119
to producers is Ogle. It has yields similar to Cayuse but is stifferstrawed and more resistant to lodging.
A number of varieties included in this trial are semidwarf lines very
resistant to lodging_ High yielding semidwarf lines include 80Ab4725,
82Ab1142, and NPB86575. Management requirements of semidwarf varieties
appear to differ from traditional varieties. Under more intensive management, not feasible with traditional varieties, semidwarf varieties may
yield far better than seen in this trial. The possibility is being
addressed in a management study currently underway (See Oat Management).
Another trial was planted at the dryland organic soil site. In this
trial 76Ab6843 and NPB8O3A outyielded Cayuse (Table 14). Cayuse, Kiel,
Valley and 80Ab5322 were included in KES trials where their average yield
was 4413 lbs/A. At the dryland site these varieties averaged only 3061
lbs/A. Test weights were approximately 7 lbs/bu. lower at the dry land
site.
120
Table 1. 1989 Western Regional Spring Barley Nursery.
Grain yield, test weight, percent thins, percent lodging
and plant height of spring barley varieties planted at
the Klamath Experiment Station.
Test
weight
lbs/bu
6/64
3201
3950
3375
3234
3400
53.5
54.0
53.0
55.0
56.5
97.3
98.1
94.6
96.9
97.6
1.7
1.2
3.6
2.2
1.6
4039
8529
82519
71966
83533
4305
4107
3365
4329
4952
58.0
57.0
53.0
55.0
57.0
98.9
98.7
97.5
97.3
99.5
MT
ND
OR
OR
UT
140523
9147
8408
8411
1057
3942
3539
4541
4485
4356
58.5
57.5
57.0
56.0
53.0
16
17
18
19
20
UT
WA
BA
ID
MN
2507
944883
2601
8540
52
3114
4361
2655
3060
3606
21
22
23
24
25
MT 83435
MT 851032
ND 9866
ORS 1
OR 8623
26
27
28
29
30
PB
UT
WA
WA
WP
31
32
Entry
Selection
Yield
lbs/A
1
2
3
4
5
Trebi
Steptoe
Klages
Morex
WA 102178
6
7
8
9
10
BA
BA
ID
ID
MT
11
12
13
14
15
Thins, X
5.5/64 Pan
Lodge
X
Height
inches
0.9
0.7
1.9
0.9
0.8
0
0
0
0
0
33
29
29
40
33
0.7
0.9
1.9
1.8
0.4
0.4
0.4
0.6
0.9
0.2
0
0
0
0
0
34
30
37
31
33
99.1
97.8
99.2
98.2
96.6
0.5
1.5
0.5
1.1
2.4
0.3
0.7
0.3
0.7
1.0
0
0
0
0
0
29
30
37
32
27
50.0
58.0
55.0
52.0
54.5
97.3
97.5
94.5
94.4
96.1
1.9
1.8
4.2
4.0
2.8
0.8
0.7
1.3
1.6
1.2
0
0
0
0
0
29
30
24
33
35
3748
4371
3430
4399
2571
58.0
60.0
56.0
58.0
56.0
99.0
98.6
98.7
98.2
93.7
0.7
0.9
0.7
1.3
3.9
0.3
0.4
0.5
0.5
2.4
0
0
0
0
0
31
34
32
22
18
4059
3019
3659
2062
2906
57.5
49.5
54.0
56.0
51.0
97.6
96.1
98.8
94.9
97.7
1.5
2.9
0.7
3.2
1.8
0.9
1.0
0.5
1.9
0.5
0
0
0
0
0
34
20
31
20
19
B 1603
B 1602
3356
3625
54.5
57.0
95.7
97.5
3.4
2.0
1.0
0.5
0
0
36
39
Means
CV(X)
LSD(0.05)
3659
21
1071
55.3
92.7
1.8
0.8
0
31
11
5
107
502358
9029
12629
584118
121
Table 2. 1989 Intermountain Regional Spring Barley Trial Grain yield,
test weight, percent thins, percent lodging and plant height
of spring barley varieties planted at the Klamath Experiment
Station.
Test
weight
lbs/bu
6/64
Thins,
5.5/64
Pan
Lodge
X
Height
inches
4473
4703
5473
5046
5740
52.0
57.0
54.0
53.5
50.0
98.4
98.9
99.2
96.4
98.3
1.1
0.8
0.5
2.9
1.2
0.5
0.4
0.3
0.7
0.5
0
0
0
0
0
34
41
20
32
28
Gallatin
Teton
Cougbar
ORSM 8413
ORSM 8424
5117
4767
5758
4351
5454
57.0
52.0
53.5
56.5
55.0
98.7
98.4
98.0
95.2
96.7
1.0
1.0
1.4
3.5
2.1
0.3
0.5
0.6
1.4
1.2
0
0
0
0
0
38
31
37
27
28
ORSF
ORSM
ORSF
ORSM
8432
8618
8623
8423
82W 44197
4643
4439
4916
4552
3975
55.0
56.0
53.5
53.0
47.5
98.6
96.4
96.6
93.3
96.0
1.0
2.5
2.3
4.6
2.8
0.4
1.1
1.1
2.1
1.2
0
0
0
0
0
27
28
29
25
19
16
17
18
19
20
83W 43952
83W 41049
Medalion
2B80-350
B 1201
4041
3098
5010
4753
4447
48.0
48.0
52.5
56.0
57.0
96.4
90.8
96.6
98.6
99.0
2.6
6.8
2.6
0.9
0.6
1.0
2.4
0.8
0.4
0.5
0
0
0
0
0
19
21
26
33
39
21
22
23
24
25
B 1202
Micah
Triumph
OSB 783063(KES)
ORSF 8409
5218
4346
5096
5342
4753
56.5
52.0
56.5
52.5
50.0
99.5
95.6
97.8
95.8
95.3
0.4
3.3
1.2
3.0
3.4
0.1
1.1
1.0
1.2
1.4
0
0
0
0
0
35
24
32
27
33
26
27
28
29
30
OSB 74289-5K
PH584-11
P11585-6
ORSM 8408
ORS 1
4487
4652
5596
5309
5219
50.0
51.0
51.0
57.0
56.0
96.4
98.6
98.2
98.4
98.3
2.5
1.0
1.3
1.2
1.2
1.1
0.4
0.5
0.5
0.5
0
0
0
7
0
28
24
22
43
24
Crystal
5012
4834
5739
4880
5676
57.5
53.0
54.5
51.0
52.0
98.5
94.8
97.0
97.8
96.6
1.2
3.7
2.1
1.5
2.3
0.3
1.4
0.9
0.7
1.0
0
0
0
0
0
34
24
40
28
35
ORSF 8405
Gus
Hulless
BA 2601
BA 8529
4911
5491
4461
4606
5412
52.0
52.0
60.5
54.0
57.5
98.0
98.5
91.7
97.3
98.9
1.4
1.2
5.3
2.1
0.6
0.6
0.4
3.0
0.7
0.4
0
0
0
0
0
27
24
30
28
35
MEAN
CV(X)
LSD(0.05)
4895
17
1197
53.6
--
97.1
--
1.9
0.8
0
30
12
5
Entry
Selection
Yield
lbs/A
1
2
3
4
5
Steptoe
Klages
Gustoe
Advance
Columbia
6
7
8
9
10
11
12
13
14
15
31
32
33
34
35
36
37
38
39
40
ORSF 8635
ORSF 8435
ORSF 8408
ID 71966
122
Table 3. Intermountain Regional Spring Barley Variety Trial Summary.
Two-year summary of spring barley varieties planted at the
Klamath Experiment Station and the Tulelake Field Station
from 1988 to 1989.
Entry
Selection
Grain
class
Klamath Exp. Station
1989 1988 Avg. Rank
--- lbs/acre
Tulelake Field Station
1989 1988 Avg. Rank
lbs/acre
1
2
3
4
5
Steptoe
Klages
Advance
Gustoe
Columbia
6F
2M
6M
6F
6F
5333
4704
6350
7122
7131
4473
4703
5046
5473
5740
4903
4704
5698
6298
6436
16
20
7
2
1
6180
4500
5980
4900
5160
5240
4760
6060
6740
5460
5710
4630
6020
5820
5310
3
23
1
2
8
6
7
8
9
10
Gallatin
Teton
Cougbar
ORSM 8413
ORSM 8424
6F
6F
6M
2M
6M
4553
4620
4782
5990
6413
5117
4767
5758
4351
5454
4835
4694
5270
5171
5934
17
21
9
11
4
5400
5440
4500
5480
4600
4340
5180
5080
4960
4680
4870
5310
4790
5220
4640
18
7
19
12
22
11
12
13
14
15
ORSM 8432
PH584-11
ORSM 8618
ORSF 8623
ORSM 8423
6F
4643
4652
4439
4916
4552
5872
-4655
5045
5826
5
2M
6F
2M
7100
-4870
5174
7100
22
13
6
4700
-4680
4580
4620
5340
7020
6080
4740
4180
5020
-5380
4660
4400
14
0
6
21
25
16
17
18
19
20
82W 44197
83W 43952
83W 41049
Medalion
2B80-350
6
6
6
6M
2M
4279
6116
5815
5601
5267
3975
4041
3098
5010
4753
4127
5079
4457
5306
5010
25
12
23
8
14
4500
5040
4800
5000
5020
6000
4940
4200
5480
5000
5250
4990
4500
5240
5010
9
16
24
10
15
21
22
23
24
25
B 1201
B 1202
Micah
PH585-6
Triumph
2M
2M
6F
4381
4751
5271
-4516
4447
5218
4346
5596
5096
4414
4985
4809
-4806
24
15
18
0
19
3800
5880
5320
-4920
3560
5480
4600
4900
5520
3680
5680
4960
-5220
26
4
17
0
11
26
27
28
29
30
OSB 783063
ORSM 8408
ORS 1
Crystal
ORSF 8635
6F
2M
2M
2M
6M
6831
---
5342
4880
5219
5012
4834
6087
3
0
0
0
0
4900
--
4560
5280
5800
4940
4540
4730
20
0
0
0
0
31
32
33
34
ORSF 8435
ID 71966
OSB 763128
OSB 74289-5K
6F
-5040
5240
5640
5200
5240
5660
--5140
5450
0
0
13
5
4920
12
840
5180
10
760
5050
---
Mean
CV(%)
LSD(0.05)
2M
6F
6F
5433
6022
5739
5676
-4487
5537
16
1253
4895
17
1197
5255
5216
0
0
0
10
123
Table 4. 1989 Irrigated Organic Soil Barley Variety Trial.
Grain yield, test weight and thins on 18 spring
barley varieties planted in organic soil in the
Lower Klamath Lake.
Selection
Yield
lbs/A
Test
weight
lbs/bu
6/64
Steptoe
Advance
Cougbar
Blazer
Gus
5378
5858
4355
4936
5792
43.5
49.0
44.0
47.0
47.0
98.2
96.6
88.8
97.4
97.5
1.5
2.4
7.5
1.6
1.8
0.4
0.9
3.7
1.0
0.7
6
7
8
9
10
Gustoe
Teton
Sprinter
Micah
Klages
5811
4894
5516
6298
3725
47.0
47.0
44.0
48.0
45.5
97.6
97.7
96.4
94.6
91.6
1.0
1.1
2.2
4.2
5.5
1.4
1.2
1.4
1.2
2.9
11
12
13
14
15
Morex
Fiesta
(Hulless)
OSB 783063
OSB 763128
4769
5250
3963
5660
5170
49.5
48.0
57.0
46.0
46.0
97.6
98.4
82.2
91.9
97.3
1.4
0.9
12.9
5.3
1.9
1.0
0.7
4.8
2.8
0.8
16
17
18
OSB 74289-5K
OSB 72289-5W
OSK 793171
5510
4752
5970
43.0
43.0
45.5
94.6
96.0
92.0
3.7
2.6
5.4
1.7
1.4
2.5
Means
CV
LSD(0.05)
5200
14
1000
46.7
97.1
3.7
1.8
Entry
1
2
3
4
5
Thins CO
5.5/64
Pan
124
Table 5. 1989 unirrigated Organic Soil Barley Variety
Trial. Grain yield, test weight and thins on 18
spring barley varieties planted in unirrigated
organic soil in the lower Klamath Lake.
Selection
Yield
lbs/A
Test
weight
lbs/bu
6/64
Thins, X
5.5/64
Pan
1
2
3
4
5
Steptoe
Advance
Cougbar
Blazer
Gus
5071
5133
4161
4719
4805
43.0
43.5
42.0
40.0
37.5
97.9
91.5
88.3
92.1
88.3
1.6
6.1
8.0
4.6
8.6
0.4
2.4
3.6
3.3
3.1
6
7
8
9
10
Gustoe
Teton
Sprinter
Micah
Klages
3659
4846
1667
3356
3228
38.5
41.5
33.0
39.5
41.5
87.9
95.3
81.4
78.1
75.5
8.2
2.6
10.9
15.0
16.4
3.9
2.1
7.7
6.9
8.1
11
12
13
14
15
Morex
Fiesta
(Hulless)
OSB 783063
OSB 763128
4542
4637
3143
4265
4146
43.0
44.0
48.5
38.0
38.0
87.8
96.8
37.2
70.5
82.7
8.2
2.0
35.8
20.2
12.8
4.0
1.2
27.0
9.2
4.4
16
17
18
OSB 74289-5K
OSB 72289-5W
OSK 793171
4313
2444
4620
36.5
34.0
44.0
82.9
83.2
74.6
12.4
10.8
17.9
4.8
5.9
7.5
Means
CV(I)
LSD(0.05)
4042
8
443
40.3
75.9
10.5
5.6
Entry
125
Table 6. 1989 Western Regional Spring Wheat Nursery.
Grain yield, test weight, lodging and plant
height of spring wheat varieties planted at
the Klamath Experiment Station.
Test
weight
lbs/bu
Lodge
X
Height
inches
4514
4348
5142
5570
4352
65.0
65.0
65.5
65.5
63.0
0
0
0
0
0
30
37
30
28
30
WA 7183
WA 7326
WA 7176
ORS 8510
WA 7496
4173
4423
5053
3892
4216
64.5
65.0
61.0
66.5
64.0
0
0
0
0
0
29
30
31
27
26
11
12
13
14
15
ID
ID
UT
UT
UT
341
366
743
817
884
3989
5044
3888
4435
3866
65.0
65.5
65.5
66.0
65.0
0
0
0
0
0
26
30
27
27
28
16
17
18
19
20
WA
OR
OR
OR
ID
7493
487503
487570
487316
367
4124
4144
4548
4245
4590
65.0
62.0
62.5
64.5
65.0
0
0
0
0
0
27
31
29
24
30
21
22
23
24
25
ID
ID
ID
ID
ID
369
379
415
416
417
4492
5153
4284
4662
4419
65.0
65.5
64.0
67.0
66.5
0
0
0
0
0
30
30
30
27
30
26
27
28
29
30
ID
ID
UT
UT
UT
419
420
580646
613960
2464
3880
4801
4763
4854
4255
66.0
65.5
65.0
64.0
65.0
0
0
0
0
0
26
26
28
30
32
31
32
33
34
35
OR 487355
OR 487456
OR 487475
OR 487400
Klasic
2929
3468
3884
5201
4263
64.0
65.0
65.0
67.0
65.0
0
0
0
0
0
24
24
21
29
27
36
Serra
4325
64.5
0
28
Means
CV(%)
LSD(0.05)
3955
12
743
64.9
0
26
7
3
Entry
Selection
Yield
lbs/A
McKay (ID 167)
Federation
Owens (ID 185)
Penawawa
WA 7075
6
7
8
9
10
1
2
3
4
5
126
Table 7. Summary of Western Regional Spring Wheat Trials,
1987 1989. Grain yield of spring wheat varieties
planted at the Klamath Experiment Station from
1987 to 1989.
-
Entry
Grain
class
1989
1988
Yield, lbs/acre
1987
2-yr Avg
3-yr Avg
ID 366
Spillman
McKay
WA 7326
HR
HR
HR
HR
5044
4352
4514
4423
5772
5814
4926
4423
5592
5399
4963
5120
5408
5083
4720
4423
5469
5188
4801
4655
ORS 8510
ID 341
UT 743
UT 817
HR
HR
HR
HR
3892
3989
3883
4435
4507
4333
4775
3250
5241
4960
4200
4161
4329
3843
4547
4427
UT 884
ID 367
WA 7493
HR
HR
HR
3866
4590
4124
5687
5046
4524
4283
4823
5213
4553
4848
AVG HR
4777
4818
4324
Penawawa
WA 7176
WA 7496
Owens
SW
SW
SW
SW
5570
5053
4216
5142
4486
4621
4458
4600
5613
5154
5983
4595
5028
4837
4337
4871
5223
4943
4886
4779
WA 7183
Federation
OR 487503
OR 487316
SW
SW
SW
SW
4173
4348
4144
4245
4245
3921
5071
5030
5522
4410
4209
4135
4608
4638
4647
4226
OR 487570
ID 379
SW
SW
4548
5153
3793
5294
4659
12
743
4552
21
1427
AVG SW
CV(X)
LSD(.05)
4171
5224
5213
9
853
4606
4784
127
Table 8. Intermountain Regional Spring Wheat Variety Trial.
1989 Grain yield, test weight, lodging and plant
height of spring wheat varieties planted at the
Klamath Experiment Station.
Selection
Yield
lbs/A
Teat
weight
lba/bu
Yecora Rojo
Twin
Modoc
Yolo
Fieldwin
3173
3562
2636
3136
3860
64.0
60.0
65.5
64.0
65.0
6
7
8
9
10
Klasic
Westbred 906R
WPB 881
Blanca
Probrand 751
3320
3283
2491
4408
3206
11
12
13
14
15
ORS 8413
Copper
Treasure
ORS 8417
Westbred Turbo
16
17
18
19
20
Lodge
X
Height
inches
0
0
0
0
20
27
26
28
27
64.0
63.5
63.5
63.0
63.5
0
0
0
0
0
24
26
27
30
24
4040
3777
4338
3629
2952
63.5
65.0
62.5
64.5
63.0
0
0
0
0
0
27
30
27
27
26
Imperial
Westbred Laker
Penewawa
ID 286
ID 249
2643
3230
4200
4244
4114
63.0
64.0
64.5
63.5
63.0
0
0
0
0
0
26
29
28
31
35
21
22
23
24
25
ID 266
Sterling
Bliss
Waduel
Stoa
4098
3791
3630
3904
3461
64.5
64.0
64.0
64.0
65.0
0
0
0
0
0
29
26
29
31
37
26
27
28
29
30
85S 8607
85S 8608
85S 412
Wakanz
Spillman
2788
3261
3144
3957
4016
62.0
63.0
64.5
64.0
63.0
0
0
0
0
0
24
22
20
29
29
31
32
33
34
35
Westbred 926
Discovery
Westbred Sprite
ORS 8509
ORS 8410
3453
4260
3745
3718
3692
62.0
60.5
63.5
65.0
66.0
0
0
0
0
0
26
31
31
27
28
36
37
38
39
40
ORS 8511
ORS 8512
Westbred Rambo
PC 790647
ID 312
3790
3286
3629
4174
3868
65.5
65.0
65.5
65.0
66.0
0
0
0
0
0
30
23
29
33
27
41
42
43
44
45
W 2501
W 2502
Butte 86
Edwall
Serra
3243
3347
3356
3879
3323
61.0
63.5
65.0
63.0
63.5
0
0
0
0
0
27
27
32
30
27
46
47
48
WPB 883
ID 372
WA 7492
3068
4816
3727
64.5
64.0
63.0
0
0
0
27
31
29
Means
CV(X)
LSD(0.05)
3597
16
785
63.8
--
0
28
8
3
Entry
1
2
3
4
5
0
128
Table 9. Intermountain Regional Spring Wheat Variety Trial Summary. Two-year
yield summary over two locations of spring wheat varieties planted
at the Klamath Experiment Station and the Tulelake Field Station from
1988 to 1989.
Entry
Selection
Grain
class
Klamath Exp. Station
lbs/A
1988 1989 Avg. Rank
Tulelake Field Station
lbs/A
1988 1989 Avg
Rank
5600
-5640
-4500
1
2
3
4
5
Modoc
WPB 881
Westbred Turbo
WPB 883
Imperial
DUR
DUR
DUR
DUR
DUR
4293
3154
4837
-4452
2636
2491
2952
3068
2643
3465
2823
3895
-3548
6
7
8
9
10
Westbred Laker
Yecora Rojo
Yolo
Westbred 906R
Probrand 751
DUR
HRS
5971
2390
5543
4558
4
444
3230
3173
3136
3283
3206
4601
20
5000
2782
4340
3921
3825
43
26
31
34
4360
5740
5140
6320
11
12
13
14
15
Serra
Copper
ORS 8417
Stoa
85S 8607
-5198
5647
4784
4500
3323
3777
3629
3461
2788
-4488
4638
4123
3644
22
17
28
37
-5700
5840
6240
5280
6100
5320
4860
4720
5600
-5510
5350
16
17
18
19
20
85S 8608
85S 412
Spillman
Westbred 926
Westbred Disco
4780
4284
5390
4278
5248
3261
3144
4016
3453
4260
4021
3714
4703
3866
4754
30
36
15
33
14
6040
4320
6340
5920
5640
21
22
23
24
25
Westbred Sprit
ORS 8509
ORS 8410
ORS 8511
ORS 8512
HRS
5416
6374
5668
3745
3718
3629
4581
5046
4649
21
7
16
6140
6280
5300
HRS
6341
3790
5066
6
6240
HRS
4800
5480
4833
3286
4060
29
5420
4480
4950
26
27
28
29
30
Westbred Rambo
W 2501
W 2502
Butte 86
Klasic
HRS
HRS
HRS
HRS
HWS
5588
5140
5402
4289
3143
3629
3243
3347
3356
3320
4609
4192
4375
3823
3232
19
27
24
35
40
6100
5080
6000
3920
--
4780
4360
5980
3140
5680
5440
4720
5990
3530
--
26
36
11
39
31
32
33
34
35
ORS 8413
PC 790647
Twin
Fieldwin
Blanca
HWS
HWS
SWS
SWS
SWS
7374
6048
5308
6328
6070
4040
4174
3562
3860
4408
5707
5111
4435
5094
5239
1
4
23
5
2
5920
6680
-6200
5820
5300
5400
4740
6520
6500
5610
6040
-6360
6160
20
7
-2
5
36
37
38
39
40
Edwall
Treasure
Penawawa
ID 286
ID 249
SWS
SWS
SWS
SWS
SWS
-5697
5700
6089
5508
3879
4338
4200
4244
4114
-5018
4950
5167
4811
-5620
6540
5420
5660
4000
--
8
11
3
13
4860
5020
5100
5920
5240
5780
5260
5790
-31
17
30
16
41
42
43
44
45
ID 266
Sterling
Bliss
Waduel
Wakanz
SWS
SWS
SWS
SWS
SWS
5830
6126
5622
2496
5789
4098
3791
3630
3904
3957
4964
4959
4626
3200
4873
9
10
18
41
12
6400
6660
6460
6340
5940
6360
5580
4940
5640
6170
6510
6020
-5990
46
47
48
ID 312
ID 372
WA 7492
SWS
SWS
SWS
4870
---
3868
4816
3727
4369
---
25
6260
5880
--
6070
--
5145
13
907
3597
16
785
4871
---
5640
14
1140
5260
15
920
5450
---
Mean
CV(%)
LSD(0.05)
HRS
HRS
HRS
HRS
HRS
HRS
HRS
HRS
HRS
HRS
HRS
HRS
HRS
HRS
HRS
39
42
32
-38
5000
3580
5080
4640
4420
5300
-5360
-4460
29
-27
-37
5200
5100
5100
6020
6260
6220
4730
5880
5700
6270
32
35
13
19
3
5440
4340
5480
5440
5740
4330
4820
5580
5720
5400
5820
5520
5660
5740
5900
6010
5050
5860
-23
28
24
25
18
38
21
15
22
12
9
33
14
34
4
1
8
10
6
129
Table 10. 1989 Organic Soil Spring Wheat Variety Trials.
Grain yield and test weight of 12 spring
varieties planted at two sites in the Lower
Klamath Lake in Klamath County.
Selection
Irrigated
lbs/A
lbs/bu
Unirrigated
lbs/A
lbs/bu
Soft White Spring Wheat
1
2
3
4
5
6
3036
3536
2391
3006
3332
2569
50.0
51.5
38.0
47.0
51.0
52.0
1359
1824
895
1761
2278
2108
42.0
46.0
32.0
29.0
46.0
52.0
Yecora Rojo
Spillman
Discovery
Rambo
Westbred 906R
Westbred 926
1969
3268
1385
2443
2657
2634
51.0
47.0
30.5
47.0
48.0
47.0
1673
2022
610
1771
2119
2418
46.0
39.5
26.0
38.0
41.0
40.0
Means
CV(Z)
LSD(0.05)
2685
14
549
46.7
1737
13
326
40.6
Fieldwin
Blanca
Bliss
Treasure
Owens
Waverly
Hard Red Spring Wheat
7
8
9
10
11
12
130
Table 11. Irrigated Organic Soil Spring Wheat Variety
Trials. Two-year summary of grain yield and
test weight of spring varieties planted on
irrigated organic soil on the Lower Klamath
Lake.
lbs/A
1989
lbs/bu
lbs/A
1988
lbs/bu
3036
3536
2391
3006
3332
2569
50.0
51.5
38.0
47.0
51.0
52.0
6149
6461
6224
6202
5982
6066
59.0
60.0
59.0
58.0
62.0
58.0
Yecora Rojo
Spillman
Discovery
Rambo
Westbred 906R
Westbred 926
1969
3268
1385
2443
2657
2634
51.0
47.0
30.5
47.0
48.0
47.0
4633
5726
6484
5362
5870
5286
62.0
58.0
59.0
60.0
61.0
60.0
Means
CV(%)
LSD(0.05)
2685
14
549
46.7
5870
6
509
59.5
Selection
Soft White Spring Wheat
1
2
3
4
5
6
Fieldwin
Blanca
Bliss
Treasure
Owens
Waverly
Hard Red Spring Wheat
7
8
9
10
11
12
131
Table 12. 1989 Uniform Northwestern States Oat Nursery.
Grain yield, test weight, percent lodging and
height of spring oat varieties planted at the
Klamath Experiment Station.
Entry
Selection
Yield
lbs/A
Test
weight
lbs/bu
Lodge
X
Height
inches
1
2
3
4
5
Park
Cayuse
Otana
Appaloosa
Border
4210
4765
3859
4926
5760
41.0
41.0
42.0
40.0
42.5
2
0
37
0
0
46
44
48
39
42
6
7
8
9
10
74Ab2608
Monida
Ogle
75Ab861
Calibre
4569
5312
3881
5055
4010
43.0
44.0
39.0
42.0
45.5
2
7
0
5
0
41
45
37
41
51
11
12
13
14
15
Dumont
80Ab4725
81Ab5792
Riel
8OAb988
4264
4649
5605
4041
4982
41.0
41.0
42.0
43.0
41.0
0
0
0
16
0
42
32
38
43
35
16
17
18
19
20
80Ab5807
Valley
80Ab5322
82Ab248
82Ab1178
5172
3774
5071
5855
5397
42.0
43.0
43.5
44.0
42.0
0
0
0
0
0
40
40
36
36
34
21
22
23
24
25
82Ab1142
Robert
Trucker
NPB 86575
NPB 86586
4889
4363
3085
4606
3844
42.0
41.0
44.5
37.0
38.0
0
0
0
0
0
31
44
44
30
27
26
27
28
29
30
NPB 86801
NPB 871742
83Ab3119
83Ab3250
83Ab3725
4166
5051
5047
5208
4627
41.0
37.5
42.0
42.0
42.0
0
0
0
22
0
29
28
36
39
36
31
32
33
34
35
A83-0013
A82-0042
Coker
75Q036-83-10
A83-0030
4952
3610
4671
4270
4180
39.5
42.0
39.0
40.0
41.0
0
0
0
0
0
41
38
43
31
38
36
37
38
39
40
BZOA-NA082-4
BZOA-NA082-5
BZOA-NA082-9
NPB 871750
86801A
4771
4803
4293
4174
4150
42.0
44.0
40.5
40.5
39.0
0
0
0
0
0
45
48
50
34
30
41
42
43
44
45
86586
86575
Hazel
Don
Hi Test
4666
3859
3370
3580
2260
36.0
37.0
41.5
40.5
42.0
0
0
0
0
0
29
26
39
40
48
46
47
48
Kelly
Tibor (nude)
Penn Nuda(nude)
1658
2213
2596
41.0
43.5
46.0
20
0
0
47
47
35
Means
CV(%)
LSD(0.05)
4336
16
953
41.3
--
2
473
16
39
5
3
132
Table 13. Summary of Uniform Northwestern States Oat
Nursery, 1987 1989. Grain yield of spring
oat varieties planted for three years at
the Klamath Experiment Station.
-
Entry
1989
1988
Yield, lbs/acre
89&88
1987
89&87
87-89
Border
82Ab248
81Ab5792
80Ab5322
82Ab1178
5760
5855
5605
5071
5379
1836
1731
1788
1541
1360
4630
4605
4019
4456
4212
3798
3793
3697
3306
3370
5195
5230
4812
4764
4796
4075
4064
3804
3689
3650
80Ab988
80Ab5807
Riel
75Ab861
Monida
4982
5172
4041
5055
5312
1486
1293
1721
1401
1405
4178
4058
4674
3870
3513
3234
3233
2881
3228
3359
4580
4615
4358
4463
4413
3549
3508
3479
3442
3410
Cayuse
74Ab2608
Ogle
Dumont
Calibre
4765
4569
3881
4264
4010
1625
1538
1746
1567
1534
3757
3971
4433
4113
4016
3195
3054
2814
2916
2772
4261
4270
4157
4189
4013
3382
3359
3353
3315
3187
Appaloosa
Otana
Park
80Ab4725
82Ab1142
4926
3859
4210
4649
4889
1433
1587
1373
1074
1333
2809
3717
3225
2632
3180
2723
2792
2862
3111
3868
3788
3718
3641
3056
3054
2936
2785
Robert
Valley
Trucker
4363
3774
3085
1182
1214
1124
2773
2494
2105
---
Mean
CV(Z)
LSD(0.05)
4336
16
953
1529
20
441
2932
4084
3833
11
566
3233
133
Table 14. Organic Soil Oat Variety
Trial.Grain yield and test weight
of eight oat varieties planted on
organic soil at Lower Lake site
in Klamath County, 1989.
Selection
Yield
lbs/A
Test Weight
ibs/bu
1
2
3
4
Cayuse
Riel
Stampede
Steele
3287
2751
1509
1670
37
37
25
31
5
6
7
8
Valley
76Ab6843
80Ab5322
NPB 803A
2847
3691
3360
3616
36
38
34
36
Mean
CV(X)
LSD(0.05)
2841
7
312
34
Entry