@article{oai:repository.naro.go.jp:00004719, journal = {Sweetpotato Research Front, Sweetpotato Research Front}, month = {Oct}, note = {Cover Story: ・Expectation to SPORF from the new director general of KNAES and director of Upland Farming Department Research Paper: ・"Sunny Red": New Sweetpotato Cultivar for Powder ・Storage Conditions of Orange- or Purple Colored Sweetpotato Powder and Sticks for the maintenance of color ・Transgenic Sweetpotato (Ipomoea batatas L.(Lam)) exhibiting resistance to Sweetpotato feathery mottle polyvirus Research News: ・Laboratory of Socio-economic Analysis(Nishigoshi) ・MAFF has honored a sweetpotato breeder at KNAES for the development of new cultivars}, pages = {1--6}, title = {Sweetpotato Research Front No.7}, volume = {7}, year = {1998} }