A dwarf mutant of winged bean〔Psophocarpus tetragonolobus(L.)DC.〕radiated by 60Coγ was screened from mutant generations.The mutant was studied on its major agronomic characters,photosynthetic characteristics and nutritional quality in this paper.The mutant obviously differed from Zhongyi No.1 (contrast)in plant height,stem diameter,etc.Compared with the contrast,variation in mutant plant height(48 cm)was very significantly different,with falling range o...