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

作     者：MA Dai-fu, LI Xiu-ying, LI Hong-min, XIE Yi-ping WANG Yi, ZHANG Li-ming, LIU Zhang-xiong and LI Qiang(Xuzhou Sweetpotato Research Center, Jiangsu 221121 CIP-Beijing Liaison Office, Beijing 100081 Shandong Academy ofAgricultural Sciences, Jinan 250100) 

作者机构：Xuzhou Sweetpotato Research Center Jiangsu 221121 CIP-Beijing Liaison Office Beijing 100081 Shandong Academy of Agricultural Sciences Jinan 250100 

出 版 物：《Agricultural Sciences in China》 (中国农业科学（英文版）)

年 卷 期：2002年第1卷第3期

页      面：251-255页

学科分类：09[农学] 0901[农学-作物学] 

主　　题：Sweetpotato Virus-free Growth habit Dry matter content Disease resistance 

摘      要：Application of virus-free sweetpotato is a breakthrough of sweetpotato production. Several popular varieties were adopted to study their yield increase potential and their use in breeding in this research. The results showed that after virus-elimination, all varieties had a yield increase ranging from 14.95% - 91. 61% and marketable quality improvement, despite the changes in location and season. The changes of dry matter content and disease resistance were not significant. Virus-free sweetpotato performed vigorous vine growth and strong dry matter assimilation ability. Virus-free parents had a slightly high seed setting percentage, but its flowering ability and performance of off-springs were similar to that of its check plants.