Location: Plant Genetic Resources Conservation UnitTitle: Characterization of a sweet potato wild species germplasm collection
Submitted to: Agronomy Society of America, Crop Science Society of America, Soil Science Society of America Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 5/27/2020
Publication Date: 11/13/2020
Citation: Wang, M.L., Vankus, P.J., Moon, S.S., Tonnis, B.D., Harrison, M.L. 2020. Characterization of a sweet potato wild species germplasm collection. Agronomy Society of America, Crop Science Society of America, Soil Science Society of America Meeting. Available: https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/125654
Technical Abstract: A set of sweet potato, Ipomoea, wild species was donated to the USDA, National Plant Germplasm System in 2004 which includes numerous species native to North America. Dates of initial collections range from 1975 to 1983 from locations including Alabama, Arkansas, Florida, Georgia, Louisiana, North and South Carolina, Oklahoma, Texas, Virginia, Mexico and other locations. Initial viability testing and characterization studies have been conducted in 141 accessions including seed morphology, seed germination, X-ray examination, and tetrazolium analysis. Significant variation in seed germination rates (0 – 83%) was observed among different species. The germination rate may be related to the seed physical and morphological structures. This collection will be further characterized and classified, and the results will be presented.