Project Title: Preliminary B (stripe rust) winter wheat test - 2018
Objective: To evaluate stripe rust resistance and agronomic performance of winter
wheat varieties/breeding lines
Results:
All traits were significant except for protein and lodging. Yield ranged from 126 bu/ac to 54.1
bu/ac, averaging at 106bu/ac. Test weight ranged from 62.2 lb/bu to 50.8 lb/bu with a mean of
59.3 lb/bu. The average protein% is at 12.0. Thousand seed weight’s highest was at 45.5 grams
while the lowest was at 25.2 grams with a mean of 39.5 grams. Plant height ranged from 42.6
inches to 36.2 inches with an average of 39.2 inches. Heading date averaged to be 157.3 days
with 159.5 being the longest and 155.5 being the shortest. Lastly, falling numbers ranged from
433 seconds to 332 seconds with a mean of 391 seconds.
Summary:
The nursery was planted under rainfed condition on silt loam soil. Weeds were controlled via
herbicide. This year, strip rust pressure was not present until late June, and thus ratings were
not taken at an optimal time (June 10
th
), and due to early maturing, late rust rating was not
recorded either. Though susceptible varieties showed decreased yield and declined in grain
quality, which indicated strip rust presence.
Table 1. Material and methods.
Seeding date:
9/26/2017
Harvest date:
8/1/2018
Julian date:
269
Julian date:
213
Seeding rate:
25 pt/ft
2
Soil type:
silt loam
Previous crop:
pea
Soil residual nutrient (lbs/A):
172-8-178
Tillage: conventional Nutrient applied (lbs/A):
9-42-60 (Fall)
5-45-0 (Spring)
Herbicide:
Husky Complete
Variety/line
YLD
PRO
TWT
TKW
HT
LOD
Heading
FN
Rust
(bu/ac)
%
(lb/bu)
(grams)
(inch)
%
Julian
(seconds)
%
MT18103
126.0 11.9 57.1 41.4 42.2 0.0
159
433 0.0
MT18112
122.0
11.1
61.5
38.6
39.8
0.0
157.5
363
0.0
MT18105
119.9
11.2
56.2
40.2
40.7
0.0
157
364
0.0
MT1894
118.9
12.1
59.6
44.5
39.0
0.0
156
384
0.0
MT1895
118.6
12.0
62.2
40.9
36.5
0.0
156
424
0.0
MT18108
114.9
11.3
56.6
40.3
40.0
0.0
159
402
0.0
MT18114
113.8
13.2
60.7
40.1
38.3
0.0
156
360
0.0
MT18106
113.7
11.5
58.5
41.3
40.9
0.0
158
407
0.0
MT18109
113.5
12.2
61.7
38.1
39.8
0.0
158.5
379
0.0
MT1898
113.5
11.5
60.5
41.5
39.4
0.0
157.5
413
0.0
MT18110
110.6
12.5
61.8
38.6
37.7
0.0
156
403
0.0
MT1896
110.3
12.6
60.0
45.5
36.2
0.0
157.5
400
0.0
MT1899
109.6
11.7
62.6
40.5
36.7
0.0
156
414
0.0
MT18111
108.6
12.6
59.5
37.5
40.0
0.0
157.5
375
0.0
MT18107
108.4
11.4
60.5
43.3
36.5
0.0
158.5
378
0.0
Yield
Adj. 13%
Protein
Test
weight
Thousand
seed
weight
Plant
height
Lodging
Heading
date
Falling
numbers
Rust
rating
Table 2 (continued). Agronomic performance.
MT18100
105.7
11.7
61.0
41.6
37.8
0.0
157.5
399
0.0
MT18101
105.2
11.6
61.4
43.0
38.7
0.0
156
398
0.0
MT18104
104.8
11.3
57.4
39.3
41.3
0.0
158
423
0.0
MT1897
103.5
11.7
62.2
41.9
36.8
0.0
156
400
0.0
MT18102
101.8
11.3
57.4
36.8
42.6
0.0
159.5
441
0.0
MT18113
100.8
13.4
61.4
40.9
37.1
0.0
155.5
371
0.0
Judee
88.1
12.3
57.7
34.9
41.4
0.0
158
344
2.5
Yellowstone
84.1
11.5
57.4
36.3
41.2
0.0
159
420
0.0
SY Wolf
80.9
12.7
57.5
35.1
37.4
0.0
155.5
332
0.0
Decade
54.1
13.3
50.8
25.2
41.2
0.0
158
339
2.5
Mean
106.0
12.0
59.3
39.5
39.2
0.0
157.3
391
0.2
CV
14.3
5.6
4.4
9.9
4.9
0.0
0.8
7
339
LSD
27.1
ns
4.5
4.5
3.4
ns
2.3
32
ns
Pr>F
0.0079
ns
0.0039
<.0001
0.0068
ns
0.0174
<.0001
0.0759
Yield
Adj. 13%
Protein
Test
weight
Thousand
seed
weight
Plant
height
Lodging
Heading
date
Falling
numbers
Rust
rating