Table 23. Yields and disease ratings of five Maturity Group IV Late (4.6-4.9) Glufosinate tolerant soybean varieties in six County Standard Tests and six varieties in small plot trials at two locations in Tennessee during 2021.
| Summary from County Tests | Summary from Small Plot Research | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg. | On-farm Location in Jackson (JAX) | Research & Education Center at Milan (RECM) | Wheat-beans | Other Diseases | Soybean Cyst Nematode | ||||||||||
| Yield | Yield (bu/ac) | Frogeye | Target | Brown | Yield (bu/ac) | Frogeye | Brown | Yield (bu/ac) | |||||||
| MS | Variety | (bu/ac) | *Treated | Non-treated | leaf spot | spot | spot | *Treated | Non-treated | leaf spot | spot | *Treated | Non-treated | ||
| A | DynaGro S49EN79 | 60.9 | 57.9 | 52.7 | MOD | LOW | LOW | 53.1 | 50.2 | NONE | LOW | 39.6 | 36.3 | SDS | R |
| A | Stine 46EB22 | 60.8 | 55.5 | 48.9 | MOD | LOW | LOW | 50.9 | 48.8 | MOD | LOW | 32.8 | 24.7 | MR | |
| A | Progeny 4775E3S | 59.4 | 56.4 | 43.8 | HIGH | LOW | LOW | 53.1 | 46.6 | MOD | LOW | 38.4 | 35.9 | R | |
| A | Stine 48EB20 | 56.1 | 55.2 | 49.5 | LOW | LOW | LOW | 51.3 | 50.9 | LOW | LOW | 32.7 | 27.8 | SDS | R |
| A | Stine 47EB32 | 55.7 | 57.4 | 50.4 | NONE | NONE | LOW | 51.8 | 51.6 | NONE | LOW | 35.9 | 31.8 | SDS | R |
| LS4706GL | 59.5 | 45.9 | HIGH | NONE | LOW | 51.6 | 48.0 | MOD | LOW | 37.9 | 32.2 | ||||
| Average | 58.6 | 57.0 | 48.5 | 52.0 | 49.4 | 36.2 | 31.5 | ||||||||
Yield adjusted to 13% moisture
MS= Varieties that have any MS letter in common are not statistically different in yield (based on 95% confidence)
*Treated plots sprayed with Miravis Top @13.7 fl oz/a + 0.25% Induce @ R3 growth stage
JAX varieties planted May 24, sprayed Aug. 3, and harvested Oct. 19
RECM varieties planted May 25, sprayed Aug. 2, and harvested Nov. 5
Wheat-beans varieteis planted June 24, sprayed Aug. 27, and harvested Nov. 9
NONE, LOW, MOD, and HIGH is a relative ranking of disease severity at each location. Other diseases noted: SDS = Sudden Death Syndrome
Soybean Cyst Nematode rateds as Resistant (R), Moderately Resistant (MR), Moderately Susceptible (MS), Susceptible (S), or High Susceptible (HS) to HG Type 1.2.5.7/Race 2
Disease ratings at JAX: Frogeye leaf spot ranged from 0 – 54%, averaged 21%; Target spot from 0 – 3%, averaged 1%; Brown spot from 8 – 16%, averaged 12%
Disease ratings at RECM: Frogeye leaf spot ranged from 0 – 12%, averaged 6%; Target spot not observed; Brown spot from 8 – 14%, averaged 11%
Disease ratings & yield data compiled by Dr. Heather Kelly, Rachel Guyer, and Wesley Crowder from replicated plots at 2 locations
County data provided by Ryan Blair, Ext. Area Specialist, and County Extension agents
Soybean Cyst Nematode data provided by Dr. Lesley Schumacher, USDA Research Plant Pathologist
Virginia Sykes vsykes@utk.edu
- Table 1. 2021 Total entry numbers - December 26, 2021
- Table A-35. Mean yields and agronomic data from Memphis, TN, MG-5 - December 23, 2021
- Table A-34. Mean yields and agronomic data from Jackson, TN, MG-5 - December 22, 2021