甘薯脱毒薯特性鉴定及亲本利用评价  

Evaluation of the Characteristics of Virus-free Sweet Potato and Its Use in Hybridization

作　　者：马代夫[1] 李秀英[1] 李洪民[1] 谢逸萍[1] 王毅[2] 张立明[3] 李强[1] 刘章雄[1] 

机构地区：[1]江苏徐州甘薯研究中心,徐州221121 [2]国际马铃薯中心北京办事处,北京100081 [3]山东省农业科学院作物研究所,济南250100

出　　处：《中国农业科学》2001年第2期146-152,共7页Scientia Agricultura Sinica

基　　金：国际马铃薯中心08-03-03项目;国家攻关(96-02-002-17专题)资助项目

摘　　要：选用目前生产上推广面积较大的几个品种，经多年多点鉴定结果表明，脱毒甘薯不同地点、品种、年份均表现增产，增产幅度为１４．９５％～９１．６１％。甘薯脱毒后干物质含量、抗病性则无明显变化。脱毒薯比非脱毒薯地上部生长旺盛，后期干物质积累优势突出。用脱毒苗作有性杂交亲本比对照结实率略高，植株开花性状、实生后代表现无明显差异。Application of virus-free sweet potato is a breakthrough of sweet potato production. Several popular varieties were adopted to study their yield increase potential and their use in breeding in this re- search. The results showed that after virus elimination, all varieties had a yield increase ranging from 14. 95%- 91. 61% and marketable quality improvement, despite of the changes in location and season. The changes of dry matter content and disease resistance were not significant. Virus-free sweet potato per- formed vigorous vine growth and strong dry matter accumulation ability. Virus-free parents have a slightly higher seed setting percentage, but the flowering ability and the performance of off-springs were similar to that of the check plants.

关 键 词：甘薯 脱毒 干物质含量 抗病性 

分 类 号：S531[农业科学—作物学]