Research Series 552
Summaries of Arkansas Cotton Research 2006
Derrick Oosterhuis, editor

Cover and front matter
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University of Arkansas Cotton Breeding Program-
2006 Progress Report
Fred M. Bourland
Pages 21-23
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Development of the COTVAR Variety Selection Program
Fred M. Bourland and D.C. Jones
Pages 24-26
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Radiation Use Efficiency of Cotton in Two Contrasting Environments
Evangelos D. Gonias, Derrick M. Oosterhuis and Androniki C. Bibi
Pages 27-30
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Effect of Plant Growth Regulators on Radiation Use Efficiency of Cotton
Evangelos D. Gonias, Derrick M. Oosterhuis, and Androniki.C. Bibi
Pages 31-33
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Physiological Response of Okra- and Normal-Leaf Cotton Isolines at Two Temperature Regimes
Evangelos D. Gonias, Derrick M. Oosterhuis, and Androniki.C. Bibi
Pages 34-36
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Effect of High Night Temperatures on Cotton Gas Exchange and Carbohydrates
Dimitra Loka and Derrick M. Oosterhuis
Pages 37-40
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Comparison of Boll Internal Temperatures with Ambient Temperatures for Calculation of Heat Units to Determine Defoliation Timing
Derrick M. Oosterhuis, Evangelos D. Gonias, and Androniki C. Bibi
Pages 41-44
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Effect of the Plant Growth Regulator BM86 on Polyamines and Seed Set Efficiency of Cotton During the Reproductive Stage
Androniki C. Bibi, Derrick M. Oosterhuis, and Evangelos D. Gonias
Pages 45-48
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Polyamines in Cotton Ovaries as Affected by Nodal Position and Canopy Temperature
Androniki C. Bibi, Derrick M. Oosterhuis, and Evangelos D. Gonias
Pages 49-53
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Exogenous Application of Putrescine on Cotton Ovaries under Two Temperature Regimes
Androniki C. Bibi, Derrick M. Oosterhuis, and Evangelos D. Gonias
Pages 54-57
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Effect of 1-MCP on the Growth and Yield of Cotton
Eduardo M. Kawakami, Derrick M. Oosterhuis, Evangelos D. Gonias, and Androniki C. Bibi
Pages 58-61
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Effect of 1-MCP on the Physiology and Growth of Drought-Stressed Cotton Plants
Eduardo M. Kawakami and Derrick M. Oosterhuis
Pages 62-66
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Management of Late-Planted Cotton
William C. Robertson, Frank E. Groves, and Robert Hogan, Jr.
Pages 67-69
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Optimizing Revenue Through Defoliation Timing Using COTMAN
William C. Robertson, Frank E. Groves, and Robert Hogan, Jr.
Pages 70-72
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Evaluation of Drip Irrigation for Cotton in Arkansas
William C. Robertson, Frank E. Groves, Robert Hogan, Jr., Leo Espinoza, M. Ismanov, and Robin Franks
Pages 73-77
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Effect of Potassium Fertilization on Seedcotton Yield
Morteza Mozaffari, Nathan A. Slaton, Edwin Evans, J. Varvil, Fred M. Bourland, and Claude Kennedy
Pages 78-81
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Effect of Phosphorus Fertilization and Cultivar on Seedcotton Yield
Morteza Mozaffari, Nathan A. Slaton, Edwin Evans, J. Varvil, Fred M. Bourland, and Claude Kennedy
Pages 82-85
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Sidedress Application of Nitrogen and Pre-Sidedress Soil Nitrate Test Can Improve Nitrogen Management for Cotton
Morteza Mozaffari, Nathan A. Slaton, Cindy G. Herron, Stephen D. Carroll, and Fred M. Bourland
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Long-Term Irrigation Methods and Nitrogen Fertilization Rates in Cotton Production: The Last Three Years of the McConnell-Mitchell Plots
J. Scott McConnell, Kenny A. Kaufman, Paul B. Francis, and C. Robert Stark
Pages 90-100
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Weed Management Needs in Arkansas Cotton
Jason K. Norsworthy, Kenneth L. Smith, Robert C. Scott, and Marilyn R. McClelland
Pages 101-104
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Confirmation of Glyphosate-Resistant Palmer Amaranth in Arkansas
Jason K. Norsworthy, Griff M. Griffith, Kenneth L. Smith, Robert C. Scott, and Lawrence R. Oliver
Pages 105-107
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Managing Glyphosate-Resistant Horseweed in Conservation-Tillage Cotton Production: Final Summary and Recommendations
Marilyn R. McClelland, Kenneth L. Smith, and Jason K. Norsworthy
Pages 108-111
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Genetic Diversity of A-Genome Cotton
Stella Kantartzi, Mauricio Ulloa, and James M. Stewart
Pages 112-116
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Molecular Diversity and Determination of Possible Natural Hybridization among the Australian Arid-Zone Gossypium Species (G. australe, G. bickii, and G. nelsonii)
Rashmi Tiwari and James M. Stewart
Pages 117-122
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Host Response to Reniform Nematode Infection in Resistant and Susceptible Gossypium arboreum Accessions
Carlos A. Avila and James M. Stewart
Pages 123-127
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Ecology and Over-Wintering Ability of Rotylenchulus reniformis on Cotton in Arkansas
Joshua A. Still and Terry L. Kirkpatrick
Pages 128-131
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Efficacy of At-Planting Insecticides Against Thrips in Cotton in Northeast Arkansas
Glenn E. Studebaker
Pages 132-134
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Performance of Widestrike Cotton in Arkansas, 2006
Gus M. Lorenz III, Kyle Colwell, Jarrod Hardke, and Craig Shelton
Pages 135-139
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Mid-Season Plant Bug Thresholds in Arkansas, 2006
Jarrod T. Hardke, Gus M. Lorenz, III, Kyle Colwell, Craig Shelton, Chuck Farr, Bob Griffin, Eddie Cates, Chuck Capps
Pages 140-145
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Early-Season Plant Bug Thresholds in Arkansas, 2006
Jarrod T. Hardke, Gus M. Lorenz III, Kyle Colwell, Craig Shelton, Chuck Farr, Bob Griffin, Eddie Cates, and Chuck Capps
Pages 146-152
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Efficacy of Selected Compounds for Two-Spotted Spider Mite (Tetranychus urticae) Control in Arkansas, 2006
Kyle Colwell, Gus Lorenz, III, Craig Shelton, Jarrod Hardke, and Robert Goodson
Pages 153-155
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Rynaxypyr™: A Novel Insecticide for Control of Heliothines in Conventional and Bollgard Cotton
Jarrod T. Hardke, Gus M. Lorenz, III, Kyle Colwell, Craig Shelton, and Richard Edmund
Pages 156-160
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Economic Impacts of Termination Timing for Irrigation and Plant Bug Control
Juan J. Monge, Tina Gray Teague, Mark J. Cochran, and Diana M. Danforth
Pages 161-168
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Control of the Tarnished Plant Bug (Lygus lineolaris) in Mid-South Cotton Using the Entomopathogenic Fungus (Beauveria bassiana) and the Insect Growth Regulator Diamond®
Jennifer Lund, Tina G. Teague, Donald C. Steinkraus, and Jarrod E. Leland
Pages 169-175
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Control of the Tarnished Plant Bug (Lygus lineolaris) in Cotton Using the Entomopathogenic Fungus Beauveria bassiana, the Insect Growth Regulator Novaluron, and Early-Season Trap Crop Practices
Jennifer Lund, Tina G. Teague, T.J. Sangepogu, Donald C. Steinkraus, and Jarrod E. Leland
Pages 176-183
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Summary of Arkansas Representative Panel Farm Project
Robert Hogan, Jr., K. Bradley Watkins, and Eric Wailes
Pages 184-189
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An Economic Analysis Comparing Harvest Aid Programs in Arkansas
Robert Hogan, Jr. and William C. Robertson
Pages 190-194
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Utilization of COTMAN to Enhance Profitability of Cotton in Arkansas
William C. Robertson, Gus M. Lorenz, III, Diana M. Danforth, and Robert Hogan, Jr.
Pages 195-197
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An Overview of the Arkansas Cotton Research Verification Program
Frank E. Groves, William C. Robertson, and Robert Hogan, Jr.
Pages 198-200
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The Influence of COTMAN on the Arkansas Cotton Research Verification Program
Frank E. Groves and Don Plunkett
Pages 201-203
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Cotton as an Innovative Fabric for Firefighter Protective Clothing
Mary M. Warnock
Pages 204-209
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A Comparison of Image Indices for Cotton Biomass Estimation
William H. Baker
Pages 210-213
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Appendix I
Student Theses and Dissertations Related to Cotton Research in Progress in 2006
Pages 214-215
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Appendix II
Research and Extension 2006 Cotton Publications
Pages 216-226
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