甘薯新品种“渝苏303”选育研究  

Studies on the breeding of "Yusu 303", a newly-evolved variety of sweet potato

作　　者：张启堂[1] 付玉凡[1] 杨春贤[1] 张黎玉[2] 邱瑞镰[2] 

机构地区：[1]西南师范大学重庆市甘薯研究中心,重庆400715 [2]江苏省农业科学院粮食作物研究所,南京210014

出　　处：《西南师范大学学报（自然科学版）》1999年第6期678-684,共7页Journal of Southwest China Normal University(Natural Science Edition)

摘　　要：介绍了对甘薯新品种“渝苏303”的生产力和主要经济性状的鉴定结果在1994～1995年四川省甘薯新品种区域试验中，“渝苏303”鲜薯产量28263．0kg／hm2，比对照品种“南薯88”减产2．3％，藤叶产量21396．0kg／hm2，薯干产量8649．0kg／hm2，生物鲜产量49648．5kg／hm2，生物干产量11205．0kg／hm2和淀粉产量5430．8kg／hm2，比“南薯88”分别增产19．3％，4．6％，5．1％，7．0％和20．8％．它在重庆、四川的生产上产量表现更好。该品种萌芽性较好，结薯较早，大中薯率85％以上，薯块烘干率30．75％，出粉率19．32％，氮基酸含量0．844％，高抗茎线虫病，抗黑斑病和根腐病．贮藏性好1998年“渝苏303”已推广1×104hm2以上。The results of identifying the productivity and essential economical characters of a newly-evolved sweetpoato variety named 'Yusu 303'are introduced.In the regional test in Sichuan province from 1994 ~1995, the average weigh of fresh tuberous roots of 'Yusu 303' is 28 263 kg/hm2 which decrease 2. 3% comparing with the 'Nanshu 88'. But its fresh vine yield, dry matter yield, fresh tuberous root and vine yield, dry tuberous root and vine yield, and starch yield are 21 396.0 kg/hm2, 8 649.0 kg/hm2, 49 648. 0kg/hm2, 11 205. 0 kg/hm2 and 5 430. 8 kg/hm2 which respectively increased 19. 3%,4.6%' 5.1%, 7.0% and 20.8% comparing with those of the 'Nanshu 88'. Its fresh tuberous ot yield is especially higher than that of 'Nanshu 88' in productions in Chonqing and Sichuan. The 'Yusu 3O3' has good bud bursting and easy storing properties, eary-tuberous-growing, the rate of weigh of 100g tuberous root and over in total tuberous root was over 85%, the conten of dry matter is 30.75%, and producing-starch is 19.32%, and amino acid is 0.844% in fresh tuberous root,resisting to black rot and toot rat, high resisting to stem nematode. The planting area of 'Yusu 303' has been popularized exceeding the field of 1×104 kg/hm2 in 1998.

关 键 词：甘薯 渝苏303 选育 品种 

分 类 号：S531.03[农业科学—作物学]