B.R. Wells Rice Research Studies 2012 R.J. Norman and K.A.K. Moldenhauer, editors A R K A N S A S A G R I C U L T U R A L E X P E R I M E N T S T A T I O N August 2013 Research Series 609 This publication is available on the Internet at http://arkansasagnews.uark.edu/1356.htm Cover Photo: Rice test plots at the Rice Research and Extension Center facilities, Stuttgart, Ark. Photo credit: University of Arkansas System Division of Agriculture. Layout and editing by Marci A. Milus Technical editing and cover design by Gail Halleck Arkansas Agricultural Experiment Station, University of Arkansas System Division of Agriculture, Fayetteville. Mark J. Cochran, Vice President for Agriculture. Clarence E. Watson, Associate Vice-President for Agriculture–Research and Director, AAES. MG400CS5/CS6. The University of Arkansas System Division of Agriculture follows a nondiscriminatory policy in programs and employment. ISSN:1941-2177 CODEN:AKAMA6 B.R. Wells RICE Research Studies 2 0 1 2 R.J. Norman and K.A.K. Moldenhauer, editors University of Arkansas System Division of Agriculture Arkansas Agricultural Experiment Station Fayetteville, Arkansas 72701 DEDICATED IN MEMORY OF Bobby R. Wells Bobby R. Wells was born July 30, 1934, at Wickliffe, Ky. He received his B.S. degree in agriculture from Murray State University in 1959, his M.S. degree in agronomy from the University of Arkansas in 1961, and his Ph.D. in soils from the University of Missouri in 1964. Wells joined the faculty of the University of Arkansas in 1966 after two years as an assistant professor at Murray State University. He spent his first 16 years at the University of Arkansas Division of Agriculture Rice Research and Extension Center near Stuttgart. In 1982, he moved to the University of Arkansas Department of Agronomy in Fayetteville. Wells was a world-renowned expert on rice production with special emphasis on rice nutrition and soil fertility. He was very active in the Rice Technical Working Group (RTWG), for which he served on several committees, chaired and/or moderated Rice Culture sections at the meetings, and was a past secretary and chairman of the RTWG. He loved being a professor and was an outstanding teacher and a mentor to numerous graduate students. Wells developed an upper-level course in rice production and taught it for many years. He was appointed head of the Department of Agronomy in 1993 and was promoted to the rank of University Professor that year in recognition of his outstanding contributions to research, service, and teaching. Among the awards Wells received were the Outstanding Faculty Award from the Department of Agronomy (1981), the Distinguished Rice Research and/or Education Award from the Rice Technical Working Group (1988), and the Outstanding Researcher Award from the Arkansas Association of Cooperative Extension Specialists (1992). He was named a Fellow in the American Society of Agronomy (1993) and was awarded, posthumously, the Distinguished Service Award from the RTWG (1998). Wells edited this series when it was titled Arkansas Rice Research Studies from the publication’s inception in 1991 until his death in 1996. Because of Wells’ contribu- tion to rice research and this publication, it was renamed the B.R. Wells Rice Research Studies in his memory starting with the 1996 publication. FOREWORD Research reports contained in this publication may represent preliminary or only a single year of results; therefore, these results should not be used as a basis for long- term recommendations. Several research reports in this publication will appear in other Arkansas Agri- cultural Experiment Station publications. This duplication is the result of the overlap in research coverage between disciplines and our effort to inform Arkansas rice producers of all the research being conducted with funds from the rice check-off program. This publication also contains research funded by industry, federal, and state agencies. Use of products and trade names in any of the research reports does not constitute a guarantee or warranty of the products named and does not signify that these products are approved to the exclusion of comparable products. All authors are either current or former faculty, staff, or students of the University of Arkansas System Division of Agriculture, or scientists with the United States Depart- ment of Agriculture, Agricultural Research Service. For further information about any author, contact Agricultural Communication Services, (479) 575-5647. ACKNOWLEDGMENTS Most of the research results in this publication were made possible through funding provided by the rice farmers of Arkansas and administered by the Arkansas Rice Research and Promotion Board. We express sincere appreciation to the farmers and to the members of the Arkansas Rice Research and Promotion Board for their vital financial support of these programs. The Arkansas Rice Research and Promotion Board John Alter DeWitt Joe Christian Jonesboro Jay Coker Stuttgart Marvin Hare Jr. Newport (Vice-Chairman) Rich Hillman Carlisle (Chairman) Bryan Moery Wynne (Secretary/Treasurer) Roger Pohlner Fisher Mike Sullivan Burdette Wayne Wiggins Jonesboro CONTENTS OVERVIEW AND VERIFICATION 2012 Rice Research Verification Program L.A. Schmidt, R.S. Mazzanti, J.T. Hardke, C.E. Wilson Jr., K.B. Watkins, and T. Hristovska .................................................................................................11 Trends in Arkansas Rice Production J.T. Hardke and C.E. Wilson Jr. .......................................................................... 38 BREEDING, GENETICS, AND PHYSIOLOGY Development of Aromatic Rice Varieties D.K. Ahrent, K.A.K. Moldenhauer, C.W. Wilson Jr., and C. Grimm ................... 48 Development of Hybrid Rice Cultivars G.L. Berger, Z.B. Yan, W.-G. Yan, and C.W. Deren ............................................. 52 Molecular Genetics at the University of Arkansas Rice Research and Extension Center V.A. Boyett, V. Booth, V. Thompson, K.A.K. Moldenhauer, D. Ahrent, J. Bulloch, H. Sater, and S. Pinson ..................................................................... 57 Rice Breeding and Pathology Technology Support Program C.D. Kelsey, S. Belmar, K.A.K. Moldenhauer, Y. Wamishe, and D.L. McCarty ............................................................................................... 61 Breeding and Evaluation for Improved Rice Varieties: The Arkansas Rice Breeding and Development Program K.A.K. Moldenhauer, J. Hardke, Y. Wamishe, C. Wilson Jr., R. Cartwright, R.J. Norman, D.K. Ahrent, M.M. Blocker, V.A. Boyett, J.M. Bulloch, E. Castaneda-Gonzalez, D. L. McCarty, C. Kelsey, and S. Belmar .................... 64 Development of Superior Medium-Grain and Long-Grain Rice Varieties for Arkansas and the Mid-South X. Sha, K.A.K. Moldenhauer, B.A. Beaty, J.M. Bulloch, E. Castaneda-Gonzalez, M.M. Blocker, and C.E. Wilson Jr. .............................. 70 Hybrid Rice Breeding Z.B. Yan, C.W. Deren, and W.-G. Yan ................................................................. 74 PEST MANAGEMENT: DISEASES Efficacy of Fungicide and Insecticide Seed Treatments for Rice Stand Establishment and Growth B.W. Burrow, C.S. Rothrock, S.A. Winters, and R.L. Sealy ................................. 78 Reactions of Selected Rice Cultivars to Ustilaginoidea virens in Arkansas D.O. TeBeest and A. Jecmen ............................................................................... 84 Development of Short-Term Management Options for Rice Bacterial Panicle Blight Disease Y. Wamishe, S. Belmar, C. Kelsey, and D. McCarty ............................................ 96 Development of Practical Diagnostic Methods for Monitoring Rice Bacterial Panicle Blight Disease and Evaluation of Rice Germplasm for Resistance Y. Wamishe, Y. Jia, C. Kelsey, S. Belmar, and M. Rasheed ............................... 103 PEST MANAGEMENT: INSECTS Efficacy of Rice Insecticide Seed Treatments at Selected Nitrogen Rates for Control of the Rice Water Weevil M.E. Everett, G.M. Lorenz III, N.A. Slaton, J.T. Hardke, N.M. Taillon, B.C Thrash, D.L. Clarkson, and L. Orellana-Jiminez ................ 109 Efficacy of Selected Compounds for the Control of Rice Stink Bugs in Arkansas Rice, 2012 W.A.Plummer, G.M. Lorenz III, N.M. Taillon, B.C. Thrash, D.L. Clarkson, M.E. Everett, and L.R. Orellana-Jimenez ..........................................................116 Comparison of Insecticide Seed Treatments and Foliar Applications for Control of Rice Water Weevil N. Taillon, G.M. Lorenz III, A. Plummer, M. Everett, B. Thrash, D. Clarkson, and L. Orellana-Jimenez ..............................................................119 Comparison of Insecticide Seed Treatments for Control of Rice Water Weevil and Grape Colaspis N. Taillon, G.M. Lorenz III, A. Plummer, M. Everett, B. Thrash, D. Clarkson, and L. Orellana-Jimenez ............................................................. 122 PEST MANAGEMENT: WEEDS Modeling Simultaneous Evolution of Barnyardgrass Resistance to Acetolactate Synthase (ALS)- and Acetyl Coenzyme A Carboxylase (ACCase)-Inhibiting Herbicides in Clearfield® Rice M.V. Bagavathiannan, J.K. Norsworthy, K.L. Smith, and P. Neve .................... 126 Influence of Rate and Application Timing on Rice Tolerance to Acetochlor and S-Metolachlor M.T. Bararpour, J.K. Norsworthy, D.B. Johnson, and R.C. Scott..................... 133 Rotational Options for Reducing Red Rice (Oryza sativa) in Clearfield Rice Production Systems B.M. Davis, R.C. Scott, and J.W. Dickson .......................................................