TABLE OF CONTENTS. Walnut Improvement Program WMB 2. McGranahan, Gale, et al
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1 TABLE OF CONTENTS List of Research Leaders...v-vi GENETIC IMPROVEMENT Walnut Improvement Program WMB 2. McGranahan, Gale, et al Overview of Walnut Culture in China. Z. Baojun, G. Yonghong ROOTSTOCKS Paradox Diversity Study Orchard Trials WMB 3. Beede, Bob, et al Growth and Performance of Own-Rooted Chandler and Vina Compared to Paradox Rooted Trees. 92 WMB 1. Hasey, Janine, Joe Grant, Bruce Lampinen, and Samuel Metcalf Evaluation of Chandler Walnut on its Own Roots and Grafted to Various Rootstocks WMB 1. Connell, Joseph H., Bill Olson, Joe Limberg, and Samuel Metcalf Clonal Propagation of Walnut Rootstock Genotypes for Genetic Improvement WMB 1C. McGranahan, Gale, et al Orchard Performance of Selected Clonal Paradox Rootstocks. 02 WMB 1C. Grant, Joe, Gale McGranahan and Wes Hackett Walnut Rootstock Orchard Trials Yuba County. 92WMB1. Hasey, Janine and Bruce Lampinen Growth and Performance of Clonal Paradox Rootstocks Tolerant to Phytophthora Solano County. 92WMB1 Lampinen, Bruce WATER MANAGEMENT Using Soil Moisture and Midday Stem Water Potential Monitoring Data to Manage a Water Table Impacted Chandler Orchard. 92 WMB 1. Lampinen, Bruce, Janine Hasey, Sam Metcalf, and Claudia Negrón
2 Assessing Irrigation-Related Problems in Hillside Orchards in Lake County. 92WMB1. Lampinen, Bruce, Rachel Elkins, Steve D Agostini, and Sam Metcalf FLOWER AND FRUIT DEVELOPMENT Pistillate Flower Abortion and Ethylene Production in Walnut. 04WMB1. Johnson, H, J. Grant, and V. Polito Evaluation of Retain for Reducing Pistillate Flower Abortion and Increasing Yield in Serr Walnuts. Anderson, Kathy Kelly, Joe Grant, Janine Hasey, and Wilbur Reil Retain Applications on Tehama County Chandler Walnuts. Buchner, Richard P, Allan Fulton, Cyndi K. Gilles, and Kari Resch TREE GROWTH AND DEVELOPMENT Walnut Orchard Management: Pilot Projects, Field Testing, Adaptive Research and Problem Solving by C.E. Farm Advisors and Specialists WMB1. Lampinen, B., et al Comparison of Growth and Productivity of Pruned and Unpruned Young Howard Walnut Trees as Impacted by Crop Load. 92 WMB 1. Lampinen, Bruce, et al CODLING MOTH Using Aerosol Pheromone Puffers for Area-wide Suppression of Codling Moth In Walnuts: Year Two and Demonstration of Aerially Applied Pheromone Laminate Flakes. 05 WMB 7. Pickel, C., J. Grant, S. Welter, R. Buchner, and S. Goldman Smith Evaluation of Alternative Pheromone Dispensing Technologies for Codling Moth. 03 WMB 3. Welter, Stephen and Frances Cave WALNUT APHID Understanding and Mediating Recent Failures in the Biological Control of the Walnut Aphid. 04 WMB 7. Mills, N. J., E. Hougardy, C. Pickel, J. Grant, and S. Wulfert WALNUT BLIGHT Epidemiology and Management of Walnut Blight. 03 WMB 7. Adaskaveg, J. E., et al ii
3 Epidemiological Approaches to the Control Of Walnut Blight Disease. 03 WMB 6. Lindow, Steven E., Rick Buchner, and Renee Koutsoukis Walnut Blight Control Investigations Tehama WMB 5. Buchner, Richard P., et al DEEP BARK CANKER Real-Time PCR Detection and Development of a Bioassay for the Deep Bark Canker Pathogen, Brenneria Rubrifaciens. 05WMB6. McClean, Ali E., Padma Sudarshana, and Daniel A. Kluepfel PHYTOPHTHORA Biology and Management of Phytophthora Crown and Root Rot of Walnut. 04 WMB 2. Browne, Greg, Leigh Schmidt, Terry Prichard, and Wes Hackett CROWN GALL Evaluation of Wild Juglans Species for Crown Gall Resistance. 06 WMB 3C. Stover, Ed, Malendia Maccree, Malli Aradhya, Ali E. McClean and Daniel Kluepfel NEMATODES Field Evaluations/Inputs for Grower Replant Settings and New Lines of Nematode Resistance. 01 WMB 3. McKenry, Michael Nematode Management in Walnut Orchards WMB 8. Westerdahl, Becky B., Janine Hasey, Joe Grant, and Bruce Lampinen Functional Genomic Analysis of Walnut-Nematode Interactions. 06WMB2C. Britton, Monica T., Charles A. Leslie, Gale H. McGranahan, and Abhaya M. Dandekar CLIMATE: HIGH TEMPERATURE EFFECTS Effects of Kaolin Clay Particle Film on Leaf Temperature, Nut Temperature and Sunburn Susceptibility in Walnut. 92WMB1. Lampinen, Bruce, Kathy Kelley Anderson, Sam Metcalf, and Claudia Negrón Note: Project reports supported by the Walnut Marketing Board include an assigned project number (i.e., 92 WMB 2.). Reports are not for publication nor to be cited without permission of author(s). iii
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5 RESEARCH LEADERS Adaskaveg, James E., Associate Professor, UC Riverside Department of Plant Pathology, 951/ , Aradhya, Malli, USDA Germplasm Repository, UC Davis, 530/ , Beede, Robert H., UC Cooperative Extension Pomology Farm Advisor, Kings County, 559/ , Browne, Gregory T., Plant Pathologist, USDA-ARS Crops Pathology and Genetics Research Unit, UC Davis Department of Plant Pathology, 530/ , Buchner, Richard P., UC Cooperative Extension Pomology Farm Advisor, Tehama/Shasta Counties, 530/ , Caprile, Janet, UC Cooperative Extension Pomology Farm Advisor, Contra Costa County, 925/ , Coates, William W., UC Cooperative Extension Pomology Farm Advisor, San Benito/Santa Cruz Counties, 831/ , Connell, Joseph H., U.C. Cooperative Extension Pomology Farm Advisor, Butte County, 530/ , Dandekar, Abhaya M., Professor, UC Davis Department of Plant Sciences, 530/ , Edstrom, John P., UC Cooperative Extension Pomology Farm Advisor, Colusa County, 530/ , Elkins, Rachel, UC Cooperative Extension Pomology Farm Advisor, Lake County, 707/ , Fulton, Allan, UC Cooperative Extension Farm Advisor, Tehama/Shasta Counties, 530/ , Grant, Joe, UC Cooperative Extension Pomology Farm Advisor, San Joaquin County, 209/ , Hackett, Wesley P., Professor Emeritus, UC Davis Department of Plant Sciences, 530/ , Hasey, Janine K., UC Cooperative Extension Pomology Farm Advisor, Sutter/Yuba Counties, 530/ , Holtz, Brent, UC Cooperative Extension Pomology Farm Advisor, Madera County, 559/ , Kelley Anderson, Kathy, UC Cooperative Extension Pomology Farm Advisor, Stanislaus County, 209/ , Kluepfel, Daniel A., Plant Pathologist and Research Leader, USDA-ARS Crops Pathology and Genetics Research Unit, UC Davis Department of Plant Pathology, 530/ , Krueger, William, UC Cooperative Extension Pomology Farm Advisor, Glenn County, 530/ , Lampinen, Bruce, Cooperative Extension Specialist, UC Davis Department of Plant Sciences, 530/ , Leslie, Charles, Staff Research Associate, UC Davis Department of Plant Sciences, 530/ , Lindow, Steven E., Professor, UC Berkeley Department of Plant & Microbial Biology, 510/ , McGranahan, Gale H., Pomologist, UC Davis Department of Plant Sciences, 530/ , v
6 McKenry, Michael, UC Riverside Cooperative Extension Nematologist, Kearney Agr. Center, 559/ , Mills, Nicholas J., Associate Professor, UC Berkeley Department of ESPM-Insect Biology, 510/ , Pickel, Carolyn, Area UCIPM Advisor, Sacramento Valley (Yuba City), 530/ , Polito, Vito, Professor, UC Davis, Department of Plant Sciences, 530/ , Prichard, Terry, UC Davis Cooperative Extension Water Management Specialist (Stockton), 209/ , Stover, Ed, USDA Germplasm Repository, UC Davis, 530/ , Van Steenwyk, Robert A., Cooperative Extension Entomologist, UC Berkeley Department of ESPM- Insect Biology, 510/ , Welter, Stephen, Associate Professor, UC Berkeley Department of ESPM-Insect Biology, 510/ , Westerdahl, Becky, Cooperative Extension Specialist, UC Davis Department of Nematology, 530/ , vi
TABLE OF CONTENTS. List of Research Leaders...following table of contents
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TABLE OF CONTENTS List of Research Leaders...v-vi GENETIC IMPROVEMENT The Evaluation of Walnut Varieties for California s Central Coast Region-2007 Harvest. Coates, William W....3-8 Walnut Improvement
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