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Extension > Minnesota Crop News > Yield results from early and late GT/RR soybean entries in SE MN available now

Tuesday, October 27, 2015

Yield results from early and late GT/RR soybean entries in SE MN available now

Lisa Behnken, Fritz R. Breitenbach, Ryan P. Miller, Thomas Hoverstad, and Jeffrey Vetch

Yield results from a study comparing Early (1.3 to 1.8) and Late (1.9 to 2.5) GT/RR® (glyphosate tolerant/Roundup Ready®) soybean entries in southeastern Minnesota are now available. Twenty-eight early and 30 late soybean entries were planted on May 22, 2015 at a Rochester, MN location. With harvest recently completed, performance results for 2015 can be seen below.

The Early group of soybean entries were harvested on October 9 and averaged 59.9 bu/A with a range of 53.8 to 63.7 bu/A (Table 1). Yield for the Late entries, harvested October 12, averaged 61.2 bu/A with a range of 56.7 to 63.8 bu/A (Table 2). While there was a significant difference in yield for the early soybean trial, there were no significant differences between the entries in the late trial.

For more information on the study methods, variety characteristics and 2-year yield averages, see the complete reports:
2015 SE Minnesota Regional Performance of Early Maturity Glyphosate Tolerant (GT) Roundup Ready® (RR) Soybean Varieties (1.3 to 1.8) maturities at Rochester, MN

2015 SE Minnesota Regional Performance of Late Maturity Glyphosate Tolerant (GT) Roundup Ready® (RR) Soybean Varieties (1.9 to 2.5) maturities at Rochester, MN.

This study was conducted by University of Minnesota Extension Regional Office, Rochester, and Southern Research and Outreach Center, Waseca, MN.

Table 1. Yield (at 13% moisture) of early maturity soybeans (1.3-1.8) at
Rochester, MN in 2015.
Entry name Maturity Yield
bu/A
Asgrow AG1431 1.4 61.0 a-h1
Asgrow AG1733 1.7 62.4 abc
Croplan R2C1400 1.4 59.0 e-i
Croplan R2C1625 1.6 60.1 c-h
Dahlman 5215 NRR2Y 1.5 58.9 f-i
Dairyland DSR-1340 1.3 53.8 k
Dairyland DSR-1721 1.7 59.2 e-i
Dupont Pioneer P15T46R2 1.5 60.4 b-h
Dyna-gro S18RY25 1.8 58.9 e-i
Gold Country 1715 1.7 54.6 jk
Gold Country 1814 1.8 63.3 ab
Legacy LS1335N RR2 1.3 60.0 c-h
Legacy LS1735 RR2 1.7 59.9 c-h
LG Seeds C1530R2 1.5 61.6 a-f
LG Seeds C1899R2 1.8 59.2 d-i
Mycogen Seeds 5N157R2 1.5 57.0 ij
Mycogen Seeds 5N180R2 1.8 60.6 b-h
Mycogen Seeds 5N182R2 1.8 63.7 a
NK Brand S15-P1 1.5 60.5 b-h
NK Brand S17-B3 1.7 61.5 a-g
Prairie Brand 1466 1.4 58.6 ghi
Prairie Brand 1822 1.8 62.1 a-d
Producers 1503NR2 1.5 60.1 c-h
Producers 1804NR2 1.8 58.4 hi
Renk RS153 NR2 1.5 61.8 a-e
Renk RS175 NR2 1.7 60.1 c-h
Stine 14RF62 1.4 62.3 abc
Stine 17RF26 1.7 58.6 ghi
LSD (p=0.20) 2.9
Average yield 59.9 bu/A
1Means followed by the same letter are not significantly different at the 0.20 level

Table 2. Yield (13% moisture) of late maturity soybeans (1.9 to 2.6) at
Rochester, MN in 2015.
Entry name Maturity Yield
bu/A
Asgrow AG1935 1.9 59.5
Asgrow AG2035 2.0 61.4
Croplan R2C2025 2.0 62.0
Croplan R2C2075 2.0 62.2
Dahlman 5420 NRR2Y 2.0 56.7
Dahlman 5321 NRR2Y 2.1 59.8
Dairyland DSR-1990 1.9 57.8
Dairyland DSR-2110 2.1 62.1
Dupont Pioneer P19T78R 1.9 58.9
Dupont Pioneer P22T73R 2.2 61.1
Dupont Pioneer P25T51R 2.5 62.1
Dyna-gro S20RY45 2.0 62.0
Gold Country 2015 2.0 62.8
Gold Country 2114 2.1 63.6
Legacy LS1934 NRR2 1.9 63.4
Legacy LS2135 NRR2 2.1 62.3
Legacy LS2414 NRR2 2.4 58.7
LG Seeds C2020 R2 2.0 61.9
LG Seeds C2441 R2 2.4 62.3
Mycogen Seeds 5N206 R2 2.0 63.8
NK Brand S19-B2 1.9 60.9
NK Brand S20-T6 2.0 59.4
Prairie Brand 1956 1.9 62.7
Prairie Brand 2024 2.0 61.2
Producers 2004 NR2 2.0 60.4
Producers 2204 NR2 2.2 59.3
Renk RS195 NR2 1.9 61.9
Renk RS213 NR2 2.1 60.9
Stine 19RF32 1.9 60.6
Stine 20RD20 2.0 63.2
LSD (p=0.20) NS
Average yield 61.2 bu/A

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