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, 2001
Ted Helms, NDSU Deparment of Plant Sciences
Richard Greenland
Table 33. Results of the soybean performance trial
Soybeans usually produce well in North Dakota. This replicated trial had 20 soybean varieties, including several natto type soybeans.
MATERIALS AND METHODS
Soil: |
Embden Sandy Loam and Hecla Sandy Loam; pH=7.1; 2.8% organic matter; soil-P and soil-K were very high; soil-S was very low. |
Previous crop: |
2000 - potato; 1999 - carrot; 1998 - sweet corn. |
Seedbed Preparation: |
Disk on April 28. Multiweeded (field cultivated) twice on May 14 to smooth seedbed and incorporate herbicide. |
Planting: |
Planted on May 14 in 30-inch rows. |
Plots: |
Plots were 17 ft long by 10 ft wide. There were four reps. |
Fertilizer: |
On April 19, broadcast 10 lbs N/acre and 50 lbs P2O5/acre as 10-50-0 and 18 lbs N/acre and 20 lbs S/acre as 21-0-0-24. |
Irrigation: |
Surface drip irrigation as needed. |
Pest control: |
Weeds were controlled with Treflan (1 pt/acre preplant incorporated on May 14), Dual II (1.5 pt/acre on May 14), Pursuit (1.44 oz/acre on June 7) and by handweeding. |
Harvest: |
Harvested on October 3 with a Hege plot combine. |
Many soybean plants had phenoxy type injury symptoms in July. We assume this was from spray drift from an adjoining area. It is very probable that yields were affected by this spray drift. The taller soybeans were most affected. The soybeans lodged more than normal.
Table 33. Results of the Oakes Irrigation Research Site 2001 soybean performance trial.
Variety |
Days to maturity |
Yield1 |
Lodging2 |
Plant height |
Test weight |
|
days from planting |
bushels/acre |
1 to 5 |
inches |
lbs/bushel |
Barnes |
122 c3 |
63.3 a |
2.9 b-e |
42.5 cde |
56.0 f |
Sargent |
133 jk |
59.7 ab |
3.8 ghi |
44.5 bcd |
57.0 bcd |
Norpro |
122 bc |
55.6 b-e |
2.8 bcd |
41.3 cde |
57.1 bc |
Norpro(RPS6) |
115 a |
53.9 b-e |
2.9 b-e |
40.3 d-g |
56.2 ef |
Walsh |
123 cd |
59.5 ab |
2.6 bc |
38.5 efg |
56.8 cde |
Pioneer 91B01 |
130 gh |
54.8 b-e |
2.4 ab |
43.0 cde |
57.3 bc |
Danatto |
125 de |
50.8 de |
3.9 hi |
45.3 bcd |
58.9 a |
Proto |
124 cd |
54.4 b-e |
3.5 f-i |
35.3 gh |
58.3 a |
ND97-1120 |
122 bc |
50.7 de |
3.6 ghi |
35.8 fgh |
57.3 bc |
ND97-962 |
120 b |
52.1 cde |
4.0 i |
32.8 h |
58.6 a |
ND98-3498 |
131 hij |
50.0 e |
2.0 a |
49.3 ab |
56.8 cde |
ND98-3506 |
136 l |
51.9 cde |
3.0 c-f |
52.8 a |
57.2 bc |
ND98-3510 |
127 ef |
52.4 b-e |
3.0 c-f |
44.5 bcd |
56.4 def |
ND98-4359 |
130 ghi |
53.3 b-e |
3.6 ghi |
44.3 bcd |
57.2 bc |
ND98-2043 |
129 fg |
58.9 abc |
2.5 abc |
41.5 cde |
56.8 cde |
ND98-634 |
127 ef |
54.4 b-e |
2.8 bcd |
41.8 cde |
57.4 bc |
ND98-658 |
127 ef |
53.4 b-e |
2.4 ab |
41.0 def |
57.5 b |
ND98-2235 |
137 l |
52.7 b-e |
3.4 e-h |
46.5 bc |
56.9 bcd |
ND98-2252 |
133 ijk |
54.5 b-e |
2.9 b-e |
45.0 bcd |
57.3 bc |
ND95-1564 |
134 kl |
57.9 a-d |
3.3 d-g |
49.5 ab |
57.1 bc |
Exp. Mean |
127 |
54.7 |
3.1 |
42.8 |
57.2 |
LSD (0.05) |
2.3 |
7.3 |
0.6 |
5.3 |
0.6 |
C.V. (%) |
1 |
9 |
13 |
9 |
1 |
Probability |
<.0001 |
0.04 |
<.0001 |
<.0001 |
<.0001 |
1Yield adjusted to 13% moisture.
2Lodging is from 1 to 5: 1 is erect; 5 is flat on ground.
3Values in the same column followed by the same letter are not significantly different at the 0.05 level.
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