对国际马铃薯中心(CIP)引进资源的评价

Evaluation of Introduced Potato Resources from International Potato Center

为筛选出优质并适宜于天水及周边地区种植的马铃薯新品种,2009年由国际马铃薯中心引进的56份茎尖脱毒苗,2010年经扩繁生产原原种微型薯,在海拔为1 680 m生态区域进行田间观察鉴定,筛选出综合性状表现较好的9份材料,2011年在天水市中梁乡同一海拔区域,以‘天薯10号’为对照,采用随机区组设计,对其抗病性能(晚疫病、病毒病、环腐病)、淀粉含量及产量进行比较。结果表明:C-31和C-71产量与对照天薯10号差异不显著;C-71淀粉含量在参试材料中最高,含量达19.28%,比对照天薯10号(17.47%)高1.81%。可见,C-71综合性状最优。

For screening new potato varieties with good quality and suitable for planting in Tianshui area, 56 in vitro plant materials were introduced in 2009 from International Potato Center （CIP）, from which minitubers were produced, and they were tdaled and observed at a site of I 680 m above seas level and nine materials were selected out in 2010 based on their comprehensive performance. In 2011, the nine materials were further evaluated at Zhongliang Town of Tianshui City for their disease resistance （late blight, virus, and ring rot）, starch content, and tuber yield, using cv. Tianshu 10 as control in a randomized complete block design. Clone C-31 and C-71 were not significantly different in yield from the control of ＇Tianshu 10＇. Clone C-71 had the highest starch content, 19.28%, among the materials tested, which was 1.81 percentage point higher than Tianshu 10 （17.47%）. Obviously, Clone C-71 had the best comprehensive traits.