2019 Seed Production Research Report

Contents

• Are Higher Yields Possible in Annual Ryegrass Seed Crops? (Year 2)

• Development of 3-D Topometric Imaging Methods for High-throughput Phenotyping of Seed Retention Traits in Perennial Ryegrass

• Effects of Trinexapac-ethyl on Kentucky Bluegrass in the Columbia Basin of Oregon

• Effects of Straw Removal on Soil Health in Tall Fescue Seed Production (Year 1)

• Monitoring for the Red Clover Casebearer Moth in Eastern Oregon Red Clover Seed Production Regions

• Crop Tolerance and Rattail Fescue Control with Dry/liquid Herbicide Formulations in Dryland Creeping Red Fescue Seed Crops in the Grande Ronde Valley of Northeastern Oregon

• Developing Ergot Disease Detection Technology for Enhanced IPM in Grass Seed Crops

• Spring-applied Nitrogen and Plant Growth Regulator Effects on Seed Yield of Third-year Orchardgrass

• The Efficacy of Four Species of Slug-killing Nematodes on the Gray Field Slug

• Effects of Trinexapac-ethyl on Kentucky Bluegrass in the Grande Ronde Valley of Northeastern Oregon (2019)

• Evaluation of Bifenthrin Resistance in Field-collected Clover Seed Weevils

• Seed Yield Performance and Flowering Initiation of Twelve Red Clover Varieties (Year 1)

• Effects of Plant Growth Regulators and Nitrogen on Kentucky Bluegrass Seed Production

• Examining the Nitrogen Fertilizer Needs of Dry Field Peas in the Willamette Valley

Author Index

Central Oregon Agricultural Research Center

Q. Cheng, Research Associate, Plant Pathology

• Developing Ergot Disease Detection Technology for Enhanced IPM in Grass Seed Crops

J.K.S. Dung, Assistant Professor, Plant Pathology

• Developing Ergot Disease Detection Technology for Enhanced IPM in Grass Seed Crops

Department of Crop and Soil Science—OSU

T.G. Chastain, Professor, Seed Crop Physiology

• Development of 3-D Topometric Imaging Methods for High-throughput Phenotyping of Seed Retention Traits in Perennial Ryegrass

• Seed Yield Performance and Flowering Initiation of Twelve Red Clover Varieties (Year 1)

• Are Higher Yields Possible in Annual Ryegrass Seed Crops? (Year 2)

• Spring-applied Nitrogen and Plant Growth Regulator Effects on Seed Yield of Third-year Orchardgrass

A.J. Colton, Faculty Research Assistant, Invertebrate Pests 

• The Efficacy of Four Species of Slug-killing Nematodes on the Gray Field Slug

B.C. Donovan, Faculty Research Assistant, Seed Crop Extension 

• Seed Yield Performance and Flowering Initiation of Twelve Red Clover Varieties (Year 1)

• Are Higher Yields Possible in Annual Ryegrass Seed Crops? (Year 2)

• Spring-applied Nitrogen and Plant Growth Regulator Effects on Seed Yield of Third-year Orchardgrass

C.J. Garbacik, Senior Faculty Research Assistant, Seed Crop Physiology 

• Seed Yield Performance and Flowering Initiation of Twelve Red Clover Varieties (Year 1)

• Are Higher Yields Possible in Annual Ryegrass Seed Crops? (Year 2)

• Spring-applied Nitrogen and Plant Growth Regulator Effects on Seed Yield of Third-year Orchardgrass

N. Kaur, Assistant Professor, Extension Entomology Specialist 

• Evaluation of Bifenthrin Resistance in Field-collected Clover Seed Weevils

R.J. McDonnell, Assistant Professor, Slug Specialist 

• The Efficacy of Four Species of Slug-killing Nematodes on the Gray Field Slug

A.D. Moore, Assistant Professor, Extension Soil Fertility Specialist 

• Effects of Straw Removal on Soil Health in Tall Fescue Seed Production (Year 1)
• Spring-applied Nitrogen and Plant Growth Regulator Effects on Seed Yield of Third-year Orchardgrass

D.M. Sullivan, Professor, Soil Fertility 

• Effects of Straw Removal on Soil Health in Tall Fescue Seed Production (Year 1)

T.B. Tubbs, Graduate Student, Seed Crop Physiology  

• Development of 3-D Topometric Imaging Methods for High-throughput Phenotyping of Seed Retention Traits in Perennial Ryegrass

Extension Service—OSU 

N.P. Anderson, Area Extension Agronomist, North Willamette Valley 

• Effects of Plant Growth Regulators and Nitrogen on Kentucky Bluegrass Seed Production
• Seed Yield Performance and Flowering Initiation of Twelve Red Clover Varieties (Year 1)
• Evaluation of Bifenthrin Resistance in Field-collected Clover Seed Weevils
• Are Higher Yields Possible in Annual Ryegrass Seed Crops? (Year 2)
• Effects of Trinexapac-ethyl on Kentucky Bluegrass in the Columbia Basin of Oregon
• Effects of Trinexapac-ethyl on Kentucky Bluegrass in the Grande Ronde Valley of Northeastern Oregon (2019)
• Spring-applied Nitrogen and Plant Growth Regulator Effects on Seed Yield of Third-year Orchardgrass
• Monitoring for the Red Clover Casebearer Moth in Eastern Oregon Red Clover Seed Production Regions

W.P. Jessie, Field Crops Extension Agent, South Willamette Valley 

• Examining the Nitrogen Fertilizer Needs of Dry Field Peas in the Willamette Valley
• Evaluation of Bifenthrin Resistance in Field-collected Clover Seed Weevils
• Effects of Straw Removal on Soil Health in Tall Fescue Seed Production (Year 1)

C.S. Sullivan, Small Farms and Community Food Systems Agent, Deschutes County

• Examining the Nitrogen Fertilizer Needs of Dry Field Peas in the Willamette Valley
• Evaluation of Bifenthrin Resistance in Field-collected Clover Seed Weevils

K.C. Tanner, Field Crops Extension Agent, Malheur County 

• Monitoring for the Red Clover Casebearer Moth in Eastern Oregon Red Clover Seed Production Regions

E.C. Verhoeven, Field Crops Extension Agent, Marion County 

• Examining the Nitrogen Fertilizer Needs of Dry Field Peas in the Willamette Valley
• Evaluation of Bifenthrin Resistance in Field-collected Clover Seed Weevils
• Effects of Straw Removal on Soil Health in Tall Fescue Seed Production (Year 1)

D.L. Walenta, Area Extension Agronomist, Union County

• Effects of Plant Growth Regulators and Nitrogen on Kentucky Bluegrass Seed Production
• Evaluation of Bifenthrin Resistance in Field-collected Clover Seed Weevils
• Effects of Trinexapac-ethyl on Kentucky Bluegrass in the Columbia Basin of Oregon
• Effects of Trinexapac-ethyl on Kentucky Bluegrass in the Grande Ronde Valley of Northeastern Oregon (2019)
• Developing Ergot Disease Detection Technology for Enhanced IPM in Grass Seed Crops
• Crop Tolerance and Rattail Fescue Control with Dry/liquid Herbicide Formulations in Dryland Creeping Red Fescue Seed Crops in the Grande Ronde Valley of Northeastern Oregon
• Monitoring for the Red Clover Casebearer Moth in Eastern Oregon Red Clover Seed Production Regions

Hermiston Experiment Station

K.E. Frost, Assistant Professor, Botany and Plant Pathology

• Developing Ergot Disease Detection Technology for Enhanced IPM in Grass Seed Crops

S.B. Lukas, Assistant Professor, Horticulture 

• Effects of Plant Growth Regulators and Nitrogen on Kentucky Bluegrass Seed Production

R. Qin, Assistant Professor, Soil Fertility and Agronomy  

• Effects of Plant Growth Regulators and Nitrogen on Kentucky Bluegrass Seed Production
• Effects of Trinexapac-ethyl on Kentucky Bluegrass in the Columbia Basin of Oregon

Department of Horticulute - Iowa State University

S. Fei, Professor, Turfgrass Breeding and Genetics 

• Effects of Trinexapac-ethyl on Kentucky Bluegrass in the Columbia Basin of Oregon

Department of Integrative Biology - OSU

D.R. Denver, Professor 

• The Efficacy of Four Species of Slug-killing Nematodes on the Gray Field Slug

D.K. Howe, Senior Faculty Research Assistant 

• The Efficacy of Four Species of Slug-killing Nematodes on the Gray Field Slug

Credits