2005～2014年甘薯品种国家鉴定情况分析

Analysis on Registered Sweet Potato Varieties of China from 2005 to 2014

根据2005-2014年国家鉴定甘薯（Dioscorea esculenta）品种的公告资料,对10年期间鉴定品种进行归纳和剖析,结果表明,近10年鉴定的106个甘薯品种中,采用的主要手段是放任授粉和定向杂交,利用率最高的亲本是徐薯18和金山57,由它们育成的品种占总育成品种的15.1%。通过研究国家品种鉴定现状,总结国家甘薯育种经验,对未来品种试验鉴定工作提出了发展对策。

The data of the announcement of national identification of sweet potato varieties from 2005 to 2014 were analyzed.The results showed that among 106 registered varieties in last decade, they are mainly progeny from traditional crossbreeding and opening pollination. Xushu 18 and Jinshan57 is both the most widely utilized corner stone parent in sweet potato breeding of China. Derivative from them accounted for 15.1% in the same period cultivars. According to the present questions,some suggestions had been put forward to solve these issues.