甘薯新品种"渝苏30"选育研究

介绍了甘薯新品种“渝苏30”的生产力和主要经济性状的鉴定结果。在1997年至1998年重庆市甘薯新品种区域试验中,鲜薯产量35.80t/hm^2,藤叶产量24.90t/hm^2,生物鲜产量60.70t/hm^2,生物干产量12.50t/hm^2,分别比对照“南薯88”增产9.31%,14.43%,11.36%和0.73%m,其薯干产量9.03t/hm^2,比对照“南薯88”减产3.94%,它在生产上产量表现更好,该品种萌芽性好,结薯较早,大中薯率85%以上,薯块烘干率25.38%,出粉率11.87%,氨基酸含量0.71%,“渝苏30”抗旱性强,抗黑斑病,贮藏性好。

Studies on the Breeding of "Yusu 30", a Newly-Evolved Variety of Sweet Potato

The results of identifying the productivity and essential economic characters of a newly evolved sweet potato variety named "Yusu 30"are introduced. In the regional test in Chongqing from 1997 to 1998,its average weights of fresh tuberous roots, fresh vine yield, fresh tuberous root and vine yield, dry tuberous root and vine yield are 35 80 t/hm 2,24 90 t/hm 2,60 70 t/hm 2 and 12 50 t/hm 2 respectively which increased 9 31%,14 43%,11 36% and 0 73% respectively comparing with those of "Nanshu 88". The dry matter yield is 9 03 t/hm 2 which decreased 3 94% comparing with that of "Nanshu 88". Its fresh tuberous root yield and fresh vine yield are especially higher than those of "Nanshu 88" in production in Chongqing. The "Yusu 30" has good bud bursting and easy storing properties, early tuberous growing. The rate of weight of 100 g tuberous root and over in total tuberous root is 85%,the content of dry matter is 25 38%,and producing starch is 11 87%,and amino acid is 0 71% in fresh tuberous root. The drought resistance and black rot resistance of the "Yusu 30" is strong.