NATIONAL SWEETPOTATO COLLABORATORS GROUP ANNUAL MEETING
February 4-5, 2012
Birmingham-Jefferson Convention Complex
Birmingham, Alabama
Saturday, February 4, 2012
National Sweetpotato Collaborators Group
Room: MFCC Medical Forum A
Presiding: Ramon A. Arancibia (Mississippi State University); raa66@msstate.edu
7:30 Registration $10
8:00 Call to Order: Introductions, Announcements, Committee Assignments
8:15 State Reports of last year’s crop performance and market conditions
Sweetpotato Production, Physiology, and Plant/Seed Production
Presiding: Jonathan Schultheis (North Carolina State University) jonr@ncsu.edu
9:00 Plant and Harvest Times, and Overhead Irrigation and their Influence on Sweetpotato Yields.Jonathan R. Schultheis* and William (Brad) B. Thompson, North Carolina State University, Dept. Horticultural Science, Box 7609, Raleigh, NC 27695-7609. (jonathan_schultheis@ncsu.edu)
9:15 Determining the water requirements of drip-irrigated sweetpotatoes in California. Scott Stoddard1*, Bob Weimer2 and Larry Schwankle3, 1University of California Cooperative Extension, 2145 Wardrobe Ave., Merced, CA 94301; 2Weimer Farms, 5120 N. Arena Way, Atwater CA 95301; 3University of California Cooperative Extension, Kearney Ag Center, 9240 S. Riverbend Ave., Parlier, CA 93648. (csstoddard@ucdavis.edu)
9:30 Drip-Irrigation, Plant Spacing and Time of Harvest Influence Sweetpotato Marketable Yield.Ramon A. Arancibia* and Jeff Main, Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863. (raa66@msstate.edu)
9:45 Changes in Phenolic Content in Sweetpotato Subjected to Water Stress and Virus Infections. Ramon A. Arancibia, Xiang Wang*, Jeff Main, and Mark Shankle, Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863. (raa66@msstate.edu)
10:00 Lateral root density is associated with anomalous cambium development in ‘Beauregard’ sweetpotato adventitious roots. Arthur Villordon1*, Don LaBonte2, Julio Solis2, and Nurit Firon3, 1LSU AgCenter Sweet Potato Research Station, Chase, La 71324 USA; 2LSU AgCenter School of Plant, Environmental, and Soil Sciences, 137 J.C. Miller Hall, Baton Rouge, LA 70803-2120 USA; 3Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel. (avillordon@agcenter.lsu.edu)
10:15 Beauregard’ and ‘Evangeline’ adventitious root developmental response to 1-MCP treatment.Arthur Villordon1*, Christopher Clark2, Don LaBonte3, and Nurit Firon4, 1LSU AgCenter Sweet Potato Research Station, Chase, LA 71324 USA; 2LSU AgCenter Department of Plant Pathology and Crop Physiology, 302 Life Sciences Bldg., Baton Rouge, LA 70803-2120 USA; 3LSU AgCenter School of Plant, Environmental, and Soil Sciences, 137 J.C. Miller Hall, Baton Rouge, LA 70803-2120 USA; 3Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, P.O. Box 6, Bet Dagan, 50250, Israel. (avillordon@agcenter.lsu.edu)
10:30 Break
10:45 Evaluation of Sweet Potatoes in the US Virgin Islands for Production under Weevil Pressure.Noel T. Burnett, Thomas W. Zimmerman*, Stafford M.A.Crossman and Carlos Montilla.University of the Virgin Islands Agricultural Experiment Station, RR#1 Box 10,000, Kingshill, VI 00850. (tzimmer@uvi.edu)
11:00 Fertilizer Applications to Mississippi Sweetpotato.Mark W. Shankle*, Trevor F. Garrett, Ramon A. Arancibia, and Jeff L. Main, Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863 (shankle@ra.msstate.edu)
11:15 On-farm Validation of a Prototype Production Model for Storage Root Yield in Louisiana: Observation from Producer Fields. T. P. Smith*, A. Villordon, T. Arnold, Sweet Potato Research Station, LSU Agricultural Center, Chase, LA71324. (TSmith@agcenter.lsu.edu)
11:30 Winter Cover Crops Effect on Soil Characteristics and Sweetpotato Productionin North Mississippi.Jeff L. Main* and Ramon A. Arancibia, Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863. (jmain@ra.msstate.edu)
11:45 Use of Stale Beds in North Mississippi Sweetpotato Production. Jeff L. Main* and Ramon A. Arancibia, Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863. (jmain@ra.msstate.edu)
NSCG Student Contest
Presiding: Ramon A. Arancibia (Mississippi State University); raa66@msstate.edu
1:00 Infection of sweetpotato by fungal end rot pathogens prior to harvest. W. L. da Silva, and C. A. Clark, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, LA 70803 (washingtonufv@gmail.com)
1:15 Evaluation of Cover Crops and Tillage Systems as IPM Components for Sustainable Sweetpotato Production Systems.Arun Babu1*, Fred R. Musser1, Jack T. Reed1, Ramon A. Arancibia2 and Jeff Main2, 1Department of Biochemistry, Mol. Biol., Entomology & Plant Pathology, Mississippi State University, Starkville, MS 39759; 2Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, 8320 Hwy 15 South, Pontotoc, MS 38863.(christyhorti@gmail.com)
1:30 A systems approach to managing Palmer amaranth in sweetpotatoes. S. L. Meyers*, K. M. Jennings, D. W. Monks, North Carolina State University, Department of Horticultural Science, Box 7609, 2721 Founders Drive, Raleigh, NC 27695-7609 (slmeyers@ncsu.edu)
1:45 Transplant Holding Time and Environment Affects Yield and Stand of Sweetpotato. William (Brad) B. Thompson*, David W. Monks, Katharine M. Jennings and Jonathan R. Schultheis, North Carolina State University, Department of Horticultural Science, Box 7609, 2721 Founders Drive, Raleigh, NC 27695-7609 (brad_thompson@ncsu.edu)
2:00 Sweetpotato growth and developmental responses to soil moisture deficits during the early-season.Gajanayake Karande1, K. Raja Reddy1, Mark Shankle2 and Ramon Arancibia2, 1Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762, 2Pontotoc Ridge-Flatwoods Branch, Mississippi State University, 8320 Hwy 15 South, Pontotoc, MS 38863(kcg79@msstate.edu)
2:15 Nitrogen fertilizer rate influences greenhouse sweetpotato plant production. Chen Jiang*, Zvezdana Pesic-VanEsbroeck and Jonathan R. Schultheis, North Carolina State University, Department of Horticultural Science, Box 7609, 2721 Founders Drive, Raleigh, NC 27695-7609 (cjiang5@ncsu.edu)
2:30 Optimization of yield for bulk processing. Cody Smith1*, Tara Smith2, and Don LaBonte1, and Ramon Arancibia31LSU AgCenter School of Plant, Environmental, and Soil Sciences, 137 J.C. Miller Hall, Baton Rouge, LA 70803-2120 USA; 2LSU AgCenter Sweet Potato Research Station, Chase, LA 71324. ; 3Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863. (csmi248@tigers.lsu.edu)
2:45 Determining the Resistance to Fracture and the Breaking Point of Sweetpotato Periderm by Three Mechanical Testers. Nestor Bonilla1*, Ramon A. Arancibia2, Frank Matta1, Juan Silva3, Don LaBonte4, Mark Shankle2, and Raja Reddy1, 1Plant and Soil Sciences Dept. Mississippi State University, 117Dorman Hall, Mississippi State, MS 39762; 2Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863; 3Food Sciences, Nutrition and Health Promotion, Mississippi State University, Miss. State, MS; 4School of Plant, Environmental, and Soil Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803
3:00 Break
3:30 Influence of Fermentation Times on Ethanol (EtOH) Production from Eleven
Sweetpotato Cultivars. Joshua Madison*, KarineNyiawung, Desmond G. Mortley, Conrad K. Bonsi,, and Barrett T. Vaughan, G.W. Carver Agricultural Experiment Station, Tuskegee University, Tuskegee AL 36088
3:45 Prospects for Evaluating Shape and Size Characteristics of Sweetpotatoes(Ipomoesbatatas L.) Using Digital Image Analysis. Robert L. Vick, Jr. and Michael D. Boyette, Department of Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC 27695-7625 (rlvick@ncsu.edu)
4:00 Advances in Sweetpotato Storage Conditions in North Carolina.Jose Garzon* and Michael Boyette. Department of Biological and Agricultural Engineering, North Carolina State University, Campus Box 7625, Raleigh, NC 27695 (jggarzon@ncsu.edu)
4:15 Identification of novel genes associated with the onset of storage root formation and in response to drought stress. Julio Solis1, Arthur Villordon2, Nurit Firon3, Niranjan Baisakh1, Don Labonte1, 1School of Plant, Environmental, and Soil Sciences, LSU AgCenter, Louisiana State University; 2Professor, Sweet Potato Research Station (SPRS), LSUAC; 3Inst. of Plant Sciences, The Volcani Center, ARO, P.O. Box 6, Bet Dagan, 50250, Israel. (jsolis2@tigers.lsu.edu)
4:30 Combining ability of sweetpotatoes for traits of industrial importance. Steven Todd1, Van-Den Truong2, Ken Pecota1, G. Craig Yencho1, Department of Horticultural Science, North Carolina State University, 12721 Founders Drive, Raleigh, NC, 27695; 2USDA-ARS Food Science Research Unit, 322 Schaub Hall, NCSU Box 7624, Raleigh, NC, 27695(smtodd@ncsu.edu)
4:45 Interspecific hybridization of Sweetpotato (Ipomoea batatas L.) with Morning Glory Species (Ipomoeaspp L.). Benjamin K. Winslow1*, Shyamalrau P. Tallury2, and G. Craig Yencho1, 1North Carolina State University, 1214-A Kilgore Hall, Raleigh, NC 27695-7609;2North Carolina State University, 216Method Unit 3, Raleigh, NC, 27695-7629. (ben_winslow@ncsu.edu)
5:00 Sweetpotato Poster session
Room: Birmingham Ballroom XII
1. Atmospheric conditions affect the growth and development of Rhizopusstolonifera and Penicillium. R. R. Sweany1, D.H. Picha2, and C.A. Clark1, Department of Plant Pathology and Crop Physiology1; School of Plant, Environmental and Soil Sciences2, Louisiana State University, Baton Rouge, LA 70803(dpicha@agctr.lsu.edu)
2. Identification of genes involved during healing in response to skinning injury in sweetpotato [Ipomoea batatas (L.) Lam.]. JollandaEffendy, Don La Bonte, NiranjanBaisakh, School of Plant, Environmental, and Soil Sciences, Louisiana State University Agricultural Center, Baton Rouge, LA 70803 (DLabonte@agcenter.lsu.edu)
3. Evaluation of Various Insecticide Regimes in Sweetpotato Production for Sugarcane Beetle Control in the Mid-South. Larry Adams1, Randall Luttrell1 and Tara Smith2, 1USDA, ARS, SIMRU, Stoneville, MS; 2LSU AgCenter, Chase, LA71324 (Larry.Adams@ars.usda.gov)
4. 2011 Product Evaluation and Varietal Differences for Reniform Nematode Suppression in Mississippi Delta Sweetpotato Production. Larry Adams and Randy Luttrell, USDA, ARS, SIMRUStoneville, MS (Larry.Adams@ars.usda.gov)
Sunday, February 5, 2012
Sweetpotato Insect, Disease, and Weed Management
Presiding: Mark Shankle (Mississippi State University); shankle@ra.msstate.edu
8:00 Weed Management Issues in Sweetpotato Production. Mark W. Shankle*, Trevor F. Garrett, Ramon A. Arancibia, and Issah A. Abukari, Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863 (shankle@ra.msstate.edu)
8:15 Plant Spacing Impacts on Herbicide Programs.Donnie K. Miller1*, T. P. Smith2, and M.Mathews1.1Northeast Research Station, LSU Agricultural Center,St. Joseph, LA, 2Sweet Potato Research Station, LSU Agricultural Center Chase, LA
8:30 Evaluation of Selected Insecticides Regimes for Management of Sugarcane Beetle in Sweetpotato.T. P. Smith*1, L. Adams2, R. Luttrell2, T. Arnold1, 1Sweet Potato Research Station, LSU Agricultural Center, Chase, LA;2Southern Insect Management Research Unit, USDA,Stoneville, MS (TSmith@agcenter.lsu.edu)
8:45 Use of insecticides to control the spread of sweetpotato leaf curl virus in sweetpotato fields.D. Michael Jackson*, Kai-Shu Ling, and Alvin M. Simmons.USDA-ARS, U.S. Vegetable Laboratory, 2700 Savannah Highway, Charleston,SC 29414(Mike.Jackson@ars.usda.gov)
9:00 Potyvirus incidence in Mississippi sweetpotato fields and effect on storage root initiation. Ramon A. Arancibia1*, Chris Clark2, Lori Grelen1,Everlyne Wosula2, Xiang Wang1, and Jeff Main1, 1Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863; 2Department of Plant Pathology and Crop Physiology, Louisiana State University, Baton Rouge, LA 70803(raa66@msstate.edu)
9:15 Diversity, Densities, and Distribution of Microbial Communities in Sweetpotato End/Tip Rot Diseases.C.E. Stokes1*, S.W. Woolfolk1, R.A. Arancibia2, and R.E. Baird1, 1Department of Biochemistry, Molecular Biology, Entomology and PlantPathology, Mississippi State University, MS 39762; 2Pontotoc Ridge-Flatwoods Branch Experiment Station, North Mississippi Research and Extension Center, Mississippi State University, Pontotoc, MS 38863(bstokes@plantpath.msstate.edu)
9:30 Evaluation of postharvest hot water treatments and bio-control agents for suppression of Rhizopus soft rot on sweetpotatoes. R. R. Sweany1, D.H. Picha2, and C.A. Clark1, 1Department of Plant Pathology and Crop Physiology; 2School of Plant, Environmental and Soil Sciences, Louisiana State University, Baton Rouge, LA 70803 (dpicha@agctr.lsu.edu)
Sweetpotato Post Harvest Physiology, Food Science, and Marketing
Presiding: Arnold Caylor (Auburn University) cayloaw@auburn.edu
9:45 Effect of curing temperature and duration on sweetpotato sugar content. D.H. Picha* and M. S. Bowen, School of Plant, Environmental and Soil Sciences, Louisiana State University, Baton Rouge, LA 70803 (dpicha@agctr.lsu.edu)
10:00 Atmospheric gas composition influences sweetpotato carbohydrate content. D.H. Picha* and M. S. Bowen, School of Plant, Environmental and Soil Sciences, Louisiana State University, Baton Rouge, LA 70803 (dpicha@agctr.lsu.edu)
10:15 Baked Sweetpotato (Ipomoea batatas L. Lam) Quality is Affected by Preharvest Ethylene and Postharvest Curing. Ershad Sheibani1, Ramon Arancibia2, Taejo Kim1, Jeff Main2, David H. Picha3, Frank B. Matta4, and Juan L. Silva1*, 1Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Miss. State, MS 39762; 2NMREC-Pontotoc Ridge-Flatwoods Branch Experiment Station, Mississippi State University, Pontotoc, MS 38863; 3School of Plant, Environmental and Soil Sciences, Louisiana State University, Baton Rouge, LA 70803; 4Dept. of Plant and Soil Sciences,Mississippi State University, Miss. State, MS 39762 (jls46@msstate.edu)
10:30 Drying Sweetpotatoes for Value Added Products. Michael D. Boyette, Ph.D., P.E, Department of Biological and Agricultural Engineering, North Carolina State University (mike_boyette@ncsu.edu)
10: 45 Break
NSCG Annual Business meeting
11:00 NSCG Variety Trial Results and 2011 Selections.Kenneth Pecota, NC State University(ken_pecota@ncsu.edu)
11:30 Business Meeting and Awards.Ramon A. Arancibia, Mississippi State University (raa66@msstate.edu)
11:45 Sweetpotato Crop Germplasm Advisory Committee Meeting.D. Michael Jackson, USDA-ARS, Charleston, SC
Adjourn Meeting