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2022 Extension Corn Hybrid Demonstration Program Results

Filed Under:
Publication Number: P3942
View as PDF: P3942.pdf

Coordinator: Dr. Erick Larson

Extension Associate: Nolan Stapleton

MSU Extension Supervisors: Preston Aust, Andy Braswell, Dr. Bill Burdine, Alex Deason, Chad Hankins, Mark Harrison, Kyle Lewis, Randall Nevins, Reid Nevins, Michael Pruden, Tracy Robertson, and Dr. Mark Shankle

Grower Cooperators: Brown Farms, Dantzler Pilkinton and Phillips Farm, DRIII Farms, Dunn Farms, Cecil Ferrell, Guedon Farms, David Hey, Danny Holloway, Hopeso Farms, Long Lake Farms, Danny Mashburn, McClain Farms, Matthew Poe, and Shellmound Farms

Program Objectives: The MSU Extension Corn Hybrid Demonstration Program is intended to provide corn growers, crop consultants, and other agricultural professionals a firsthand opportunity to observe performance of elite hybrids and generate information to better assess hybrid performance and adaptability in Mississippi. This program provides a unique opportunity to observe and evaluate plant characteristics and environmental responses of our best corn hybrids in local, on-farm demonstration plots representing our production systems.

Program Methodology: Hybrids voluntarily entered in this program must be validated by producing superior grain yield in the Mississippi Corn for Grain Hybrid Trials or be a relevant market standard. Hybrids are selected annually and grouped into two distinct sets based upon performance in dryland or irrigated culture, since both these cropping systems are prevalent in Mississippi and can affect hybrid adaptability. Seed companies are granted the discretion to enter hybrids that have demonstrated superior performance in the Mississippi Corn for Grain Hybrid Trials, or a newly released hybrid that they believe is more promising or better adapted. This establishes an elite group of corn hybrids for evaluation in the program. Each standardized set of hybrids is grown at numerous field locations representing Mississippi cropping systems. Mississippi State University Extension regional agronomic crop specialists and county agricultural agents coordinate locations with grower cooperators and supervise plots. Mississippi Agricultural and Forestry Experiment Station scientists also grow some trials on branch stations.

Grain Yield Data: Hybrids evaluated in this program are generally planted in “strip trials.” Yield data generated from a single location are not as reliable as when treatments are replicated numerous times. Treatment replication reduces the effect of numerous factors that can impart variability that may affect performance and confound results. Thus, average yields are calculated from data collected at multiple locations and presented in this publication to better assess yield performance related to hybrid genetics. Analyses of yield data were performed with SAS using GLM procedures, and means are separated at the 0.05 level. This yield data derived from numerous, diverse environments is intended to supplement data generated in university hybrid trials.

Technology Traits: All hybrid entries are glyphosate tolerant. Inclusion of other traits is optional and is primarily based on product availability and the discretion of the respective seed companies. Corn borer protection normally enhances yield at locations where corn borers are present. All seed are commercially treated with an insecticide seed treatment, which is at the discretion of each respective seed company. Seed treatments are utilized to minimize damage from insect pests during seedling establishment.

Relative Maturity: Maturity is measured and reported as the number of days to tassel, as well as grain moisture at harvest. Grain moisture is represented for locations where grain was still actively drying at harvest.

Plant Height: Full plant height is measured after tassel emergence. Plant height is one of several factors that may affect light interception, which is critical to photosynthesis and grain yield. Short plant height may reduce potential light interception, particularly in wide rows. Tall plants are generally more likely to lodge and will likely have higher water demand during the growing season.

Ear Height: Ear height is measured and represented as a mean height above the soil surface. High ear placement may promote more efficient energy utilization in the plant, as leaves in the upper canopy intercept more light and produce more photosynthetic energy for the developing ear. However, high ear placement may make plants more top-heavy and thus more prone to lodge when exposed to strong wind.

Root Strength: This is an evaluation of a hybrid’s ability to resist root lodging. Root lodging occurs when the force caused by wind exceeds the roots’ ability to stabilize plants and keep them erect. Thus, the entire stalk leans or completely falls to ground level, often dislodging part of the roots from the soil. This may promote a “domino effect,” causing root lodging across a field. This may greatly hinder harvest efficiency because plants lay nearly flat on the ground, making stalks difficult to gather into a combine to harvest.

Stalk Strength: An evaluation of a hybrid’s ability to resist stalk lodging, which is when the lower stalk bends, collapses, or breaks above ground level. Stalk lodging often increases when plants are stressed, or harvest is delayed, which promotes stalk deterioration. Stalk lodging is usually more prevalent than root lodging but may be less troublesome because timely harvest might help mitigate issues.

Stalk Integrity: A characterization of the plant’s ability to maintain physical integrity after maturity and predict potential harvest issues. Poor stalk integrity typically appears as weak or broken stalks, particularly above the ear, and torn or tattered leaves.

Greensnap: This is a relative rating of resistance to stalk breakage during vegetative development stages. Corn is most sensitive to this problem during mid to late vegetative growth stages when stalks are rapidly developing and may be brittle and vulnerable to breakage if exposed to high winds. The outcome normally severs the stalk below where the ear should develop, so damaged plants rarely produce a viable ear.

Disease Resistance: Disease resistance represents a hybrid’s ability to resist infection from a specific pathogen. Southern rust and Curvularia leaf spot were rated based on disease presence.

Yield Components: Corn grain yield is determined by the total number of kernels produced and kernel weight. Kernel number is the kernel rows an ear produces and the number of kernels per row. Each of these traits is determined during different growth stages. Kernel row number is determined during late vegetative stages and is the first yield component determined. Kernel number is primarily determined during the first few weeks after pollination as young kernels develop until the milk stage. Kernel weight is the final yield component determined and is dependent upon favorable conditions from milk stage until physiological maturity.

Test Weight: Test weight is a measurement of grain bulk density and an indicator of general grain quality. It is a standard component used to assess official grain grade for commercial trade.

2022 Grain Yield Summary (bushels per acre)

Irrigated Locations

Brand

Hybrid

Greenwood

Itta Bena

Fairview

Friars Point

Inverness

Schlater

MSU Starkville

Average yield*

AgriGold

A6544

195

236

227

217

244

214

249

226 AB

AgriGold

A6659

191

235

245

198

218

222

253

223 AB

BECK'S

6803

183

237

225

195

234

214

243

219 B

CROPLAN

5497

194

226

242

206

227

218

241

222 AB

DEKALB

DKC62-70

190

248

246

215

229

226

259

230 A

DEKALB

DKC65-99

211

238

238

221

239

215

244

230 A

DEKALB

DKC66-18

202

239

240

215

236

217

240

227 AB

Dyna-Gro

54VC14

201

244

239

188

234

214

248

224 AB

Dyna-Gro

D57VC53

204

242

223

211

247

214

241

226 AB

Great Heart

HT-7499

207

241

236

213

233

217

239

227 AB

Innvictis

A1689

183

232

233

193

230

216

248

219 B

REVERE

1307

179

229

247

208

234

225

252

225 AB

REVERE

1898

204

240

250

197

236

213

237

225 AB

Pioneer

P1289

190

226

224

214

235

211

254

222 AB

Pioneer

P1718

154

233

241

216

231

235

263

225 AB

Progeny

PGY 2118

186

236

237

202

231

219

246

222 AB

Location avg.

192

236

237

207

234

218

247

225

*Grain yields were analyzed, and average yield values represented with any combination of the same letter are not significantly different (P < 0.05).

Irrigated Cultural Information

Location

Soil Type

Planting Date

Greenwood

Adler silt loam

28-Mar

Itta Bena

Dundee loam

8-Apr

Fairview

Forestdale silt loam

29-Mar

Friars Point

Dundee silty clay loam

11-Apr

Inverness

Dundee silt loam

10-Apr

Schlater

Askew silt loam

27-Apr

MSU Starkville

Marietta fine sandy loam

23-Apr

2022 Plant Characteristic Ratings

Irrigated Locations

Brand

Hybrid

Days to Tassel

% Grain Moisture

Plant Ht (feet, 10ths)

Ear Ht (feet, 10ths)

Root Strength

Stalk Strength

Stalk Integrity

Southern Rust

Resistance

Curvularia Leaf Spot Resistance

Test Wt (lbs/bu)

Kernel Rows

Kernels per row

Seed Wt (g/250)

AgriGold

A6544

57

16.6

9.1

4.0

Med-High

Medium

Low

Medium

High

58.5

16.0

26.8

83.6

AgriGold

A6659

59

17.2

8.9

4.0

High

High

High

High

Medium

59.3

15.6

32.3

91.0

BECK'S

6803

59

17.6

9.0

4.0

Med-High

Medium

High

Medium

Medium

60.8

16.5

28.7

86.5

CROPLAN

5497

57

16.6

9.3

4.0

Medium

Medium

Medium

Low

Medium

58.9

15.6

35.1

94.7

DEKALB

DKC62-70

58

16.4

9.1

4.0

High

High

Med-Low

High

Medium

59.7

15.1

32.9

85.2

DEKALB

DKC65-99

58

17.0

8.5

3.9

High

High

High

High

Med-Low

59.4

16.7

32.6

88.5

DEKALB

DKC66-18

59

16.2

8.7

3.8

High

High

Med-High

Medium

Med-High

59.2

16.3

29.4

85.2

Dyna-Gro

54VC14

57

15.9

8.6

3.8

Med-High

Med-Low

Low

Med-High

Low

60.2

15.4

28.2

85.9

Dyna-Gro

D57VC53

59

17.6

8.8

4.0

Medium

Medium

Med-High

Medium

Medium

60.3

16.6

30.7

87.0

Great Heart

HT-7499

59

17.2

9.2

4.2

Med-High

High

Medium

Med-High

High

58.6

15.8

28.5

87.8

Innvictis

A1689

58

16.4

8.9

4.1

Med-High

Medium

High

Medium

Medium

60.3

16.3

30.6

93.0

REVERE

1307

56

16.5

8.7

4.0

Medium

Medium

Medium

Med-Low

Low

58.6

16.2

32.4

86.2

REVERE

1898

58

16.0

9.0

4.1

High

High

High

Medium

Medium

60.6

15.8

30.9

92.8

Pioneer

P1289

58

16.3

9.8

4.2

Med-Low

Medium

Med-Low

Med-High

High

59.5

16.1

29.5

79.7

Pioneer

P1718

59

18.0

10.1

4.4

Low

Low

Med-Low

Low

Medium

58.7

15.9

34.4

80.5

Progeny

PGY 2118

59

17.5

9.0

4.1

High

Medium

High

Med-High

Med-High

60.8

16.8

28.8

85.8

Average

 

58

16.8

9.0

4.0

         

59.6

16.0

30.7

87.1

2022 Grain Yield Summary (bushels per acre)

Dryland Locations

Brand

Hybrid

Natchez

West Point

NMREC Verona

Artesia 30K Pop

Artesia 36K Pop

MSU Starkville

Average Yield*

AgriGold

A6544

210

149

146

157

154

208

171 DE

AgriGold

A6659

217

149

135

145

148

215

168 E

CROPLAN

5678

220

148

160

156

152

215

175 BCDE

DEKALB

DKC62-70

216

160

141

157

162

226

177 BCD

DEKALB

DKC65-99

225

176

150

164

156

214

181 AB

DEKALB

DKC66-18

217

158

154

152

150

222

175 BCDE

Dyna-Gro

D54VC14

211

140

162

163

164

222

177 BCD

Dyna-Gro

58VC65

213

155

152

151

146

217

172 CDE

Great Heart

HT-7393

223

168

142

154

147

222

176 BCDE

Innvictis

A1548

209

162

135

149

153

214

170 DE

REVERE

1307

232

161

152

163

156

224

181 AB

REVERE

1898

226

168

166

165

168

219

185 A

Pioneer

P1289

214

145

149

153

143

225

172 DE

Pioneer

P1464

225

158

138

154

150

211

172 CDE

Progeny

PGY 9114

216

151

172

159

161

221

180 ABC

Location Average

218

157

150

156

154

218

176

*Grain yields were analyzed, and average yield values represented with any combination of the same letter are not significantly different (P < 0.05).

Dryland Cultural Information

Location

Soil Type

Planting Date

Natchez

Convent silt loam

27-Mar

West Point

Griffith silty clay

25-Apr

NMREC Verona

Leeper silty clay loam

8-Apr

Artesia 30K Pop

Brooksville silty clay

26-Apr

Artesia 36K Pop

Brooksville silty clay

26-Apr

MSU Starkville

Leeper silty clay loam

23-Apr

2022 Plant Characteristic Ratings

Dryland Locations

Brand

Hybrid

Days to Tassel

% Grain Moisture

Plant Ht (feet, 10ths)

Ear Ht (feet, 10ths)

Stalk Strength

Stalk Integrity

Southern Rust

Resistance

Curvularia Leaf Spot Resistance

Test Wt (lb/bu)

Kernel Rows

Kernels per Row

Seed Wt (g/250)

AgriGold

A6544

56

16.2

9.1

4.1

Medium

Med-Low

Medium

High

59.1

15.8

30.4

76.7

AgriGold

A6659

59

16.8

8.7

4.1

High

High

Med-High

Medium

59.5

14.2

33.1

82.1

CROPLAN

5678

56

16.6

8.5

3.9

High

High

Med-Low

Medium

60.1

15.1

30.7

84.9

DEKALB

DKC62-70

57

16.3

8.8

4.2

High

Medium

High

Medium

59.9

15.0

33.9

80.0

DEKALB

DKC65-99

57

16.8

8.4

3.8

High

Med-High

High

Medium

59.5

15.9

29.9

82.1

DEKALB

DKC66-18

59

16.5

8.2

3.8

High

Med-High

Medium

High

59.0

16.1

30.9

77.2

Dyna-Gro

D54VC14

56

16.7

8.4

3.9

Medium

Med-Low

Med-High

Low

59.6

14.9

34.6

82.4

Dyna-Gro

58VC65

57

16.5

8.4

3.9

High

High

Med-Low

Medium

59.9

14.9

30.9

81.9

Great Heart

HT-7393

56

17.5

8.5

3.8

Medium

High

Low

Medium

58.3

15.2

30.5

83.4

Innvictis

A1548

56

16.6

9.0

4.2

High

Med-High

Med-High

High

58.4

15.2

33.3

78.7

REVERE

1307

55

16.3

8.4

4.1

High

Medium

Med-High

Low

58.1

15.8

32.2

78.5

REVERE

1898

57

16.2

8.8

4.3

High

High

Med-High

Medium

60.6

15.2

29.5

86.0

Pioneer

P1289

58

16.3

9.5

4.3

Med-Low

Low

Med-High

High

59.8

15.8

32.9

71.5

Pioneer

P1464

56

16.6

9.4

4.6

Medium

Low

Low

High

59.5

15.1

35.0

74.2

Progeny

PGY 9114

56

16.4

8.4

3.9

Medium

Med-Low

Med-High

Low

59.6

15.0

34.5

82.7

Average

 

57

16.6

8.7

4.1

       

59.4

15.3

32.1

80.2

Publication 3942 (POD-09-23)

By Erick Larson, PhD, Extension/Research Professor, Plant and Soil Sciences.

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Authors

Portrait of Dr. Erick J. Larson
Extension/Research Professor
Associate Agronomist/Specialist - Corn, Grain Sorghum and Small Grains