Oakes Irrigation Research
Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Voice: (701) 742-2189, FAX: (701)
742-2700, email: rgreenla@ndsuext.nodak.edu
SOYBEAN VARIETY PERFORMANCE TRIAL
Ted Helms, NDSU Department of Plant Sciences
Richard Greenland
Soybeans usually produce well in North Dakota. This replicated trial had 21 soybean varieties.
MATERIALS AND METHODS
Soil: |
Egeland loam and Maddock sandy loam; pH=7.6; 2.0% organic matter; soil-P and soil-K were very high; soil-S was low. |
Previous crop: |
2003 - onion; 2002 - sweetcorn; 2001 - onion, potato and sugar beet. |
Seedbed Preparation: |
Disked on April 14 and May 18. Multiweeded (field cultivated) three times on May 19; once to smooth the seedbed and twice to incorporate herbicide. |
Planting: |
Planted on May 19 in 30-inch rows. All beans were inoculated just prior to planting. |
Plots: |
Plots were 17 ft long by 10 ft (4 rows) wide. There were four reps. |
Fertilizer: |
On April 15, broadcast 20 lbs N/acre and 24 lbs S/acre as 20-0-0-24. |
Irrigation: |
Overhead sprinkler irrigation as needed. |
Pest control: |
Weeds were controlled with Roundup + NIS (1.5 qt/acre + 0.5% v/v on May 14), Treflan (1 pt/acre on May 19, preplant incorporated), Dual II (1.5 pt/acre on May 21), Raptor + NIS (4 oz/acre + 1 % v/v on June 9), and by hand weeding. Spot applied Fusilade + NIS (12 oz/acre + 0.5% v/v on June 25) to control quackgrass. |
Harvest: |
Harvested on October 20 with a Hege plot combine. |
Table 47. Results of the Oakes Irrigation Research Site 2004 soybean performance trial.
Variety |
Days to maturity |
Yield1 |
Grain moisture |
Lodging2 |
Plant height |
Test weight |
|
days |
bu/acre |
% |
1 to 5 |
inches |
lbs/bu |
|
||||||
AG0301 |
126 |
47.0 |
14.5 |
1.8 |
37.0 |
57.2 |
AG0801 |
134 |
40.5 |
14.0 |
1.8 |
36.5 |
58.0 |
LaMoure |
131 |
41.0 |
14.1 |
1.9 |
37.8 |
57.6 |
MN0902CN |
132 |
38.6 |
14.0 |
1.9 |
36.8 |
58.7 |
MN1006CN |
141 |
47.9 |
14.5 |
3.9 |
41.3 |
57.5 |
ND01-2469(RR) |
134 |
40.0 |
14.0 |
2.5 |
38.3 |
57.1 |
ND01-2482(RR) |
124 |
33.9 |
14.3 |
1.6 |
40.3 |
57.3 |
ND01-2489(RR) |
136 |
41.0 |
13.8 |
1.8 |
39.8 |
57.4 |
ND01-2667(RR) |
133 |
42.1 |
14.2 |
2.0 |
40.5 |
57.8 |
ND01-2679(RR) |
132 |
42.2 |
14.1 |
1.8 |
39.8 |
57.0 |
ND01-3533(SCN) |
139 |
40.5 |
13.7 |
3.3 |
43.3 |
57.8 |
ND01-3535(SCN) |
140 |
43.4 |
14.0 |
3.1 |
36.0 |
56.8 |
ND96-8929E(RR) |
125 |
39.7 |
13.5 |
1.9 |
39.0 |
58.3 |
ND96-8929L(RR) |
131 |
38.0 |
13.5 |
1.8 |
37.8 |
58.4 |
ND99-4022(TOFU) |
137 |
40.9 |
13.9 |
3.1 |
40.8 |
57.5 |
Norpro |
124 |
37.3 |
12.5 |
1.8 |
36.0 |
58.3 |
Proto |
130 |
35.5 |
13.4 |
2.8 |
32.5 |
57.8 |
RG200RR |
120 |
38.5 |
14.3 |
1.8 |
36.0 |
58.0 |
RG405RR |
127 |
41.4 |
14.0 |
1.9 |
40.0 |
57.3 |
SD1091RR |
138 |
41.6 |
13.6 |
1.9 |
34.0 |
57.8 |
Surge |
137 |
44.5 |
13.5 |
2.1 |
38.3 |
58.4 |
|
||||||
Exp. Mean |
132 |
40.7 |
13.9 |
2.2 |
38.2 |
57.7 |
Probability |
<0.0001 |
0.0006 |
<0.0001 |
<0.0001 |
<0.0001 |
<0.0001 |
LSD (0.05) |
3.7 |
5.5 |
0.3 |
0.6 |
3.2 |
0.7 |
C.V. (%) |
2 |
10 |
2 |
21 |
6 |
1 |
1Yield adjusted to 13% moisture.
2Lodging is from 1 to 5: 1 is erect; 5 is flat on ground.
Note: On Oct. 1 there was a hard freeze. On Sept. 30, I took notes on maturity and, if the soybeans had not reached maturity, I estimated the probable maturity date assuming the soybeans were given time to mature. However, they did not reach maturity because of the hard freeze. Varieties with “Days to maturity” values of greater than 135 did not mature before the hard freeze.
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