高产淀粉型甘薯新品种‘渝苏8号’的选育研究  

Studies on the Breeding of‘Yusu No.8',a Newly-Developed Variety of Sweetpotato with High Starch Content and Yield

作　　者：傅玉凡[1] 谢一芝[2] 杨春贤[1] 曾令江[1] 廖志华[1] 张启堂[1] 

机构地区：[1]西南大学生命科学学院/重庆市甘薯工程技术研究中心,重庆400715 [2]江苏省农业科学院粮食作物研究所,南京210014

出　　处：《西南大学学报（自然科学版）》2016年第3期49-53,共5页Journal of Southwest University(Natural Science Edition)

基　　金：重庆市科委项目(CSTC2012ggB80007)

摘　　要：介绍了高产淀粉型甘薯新品种‘渝苏8号’的选育过程、产量表现、主要特征、特性与栽培技术,为其推广种植提供参考.在2006-2007年国家甘薯品种长江流域薯区区域试验中,‘渝苏8号’的鲜薯产量、薯干产量和淀粉产量分别达36.22t/hm^2,10.48t/hm^2和6.86t/hm^2,比对照品种‘南薯88’分别增产10.81%,14.81%和16.88%.该品种萌芽性中上,大中薯率为85.60%,薯块烘干率为29.19%,淀粉含量为19.05%,中抗黑斑病,适宜长江流域薯区推广种植,但应注意预防茎线虫病.The breeding process,yield performance,major agronomic characters and cultivation technology of‘Yusu No.8＇,a newly developed sweetpotato[Ipomoea batatas（L.）Lam.]variety with high starch content and output,are reported in the present paper in order to provide guidance to its extension.In the regional test in the sweetpatato-growing regions of the Yangtze River Valley from 2006 to 2007,its average yield of fresh tuber,dry matter yield of storage roots and starch yield were 36.22t/hm^2,10.48t/hm^2 and 6.86t/hm^2,respectively,an increase by 10.81%,14.81%and 16.88%over those of the control variety‘Nansu 88＇.‘Yusu No.8＇showed a good bud bursting,and its large-or medium-sized tuber rate was85.60%,its dry matter content was 29.19%and the starch content in its storage root was 19.05%.It appeared moderately resistant to black rot,but susceptible to stem nematode.In conclusion,‘Yusu No.8＇is recommended for extension in cultivation in the sweetpotato growing regions of the Yangtze River Valley.

关 键 词：甘薯 淀粉产量 品种 '渝苏8号’ 选育 

分 类 号：Q945[生物学—植物学]