摘要
利用1999-2001年选用的9个性状差异较大的品种(系),按完全双列杂交(正交)组配成36个杂交组合,用Nair单性状水平分组法将杂交组合进行了分组,依产量和产量优势性状可分为4组。按分组结果对产量优势处于前两组的杂交组合进行综合选择指数分析,得到了综合选择指数I值,并对I值排序与杂交组合的产量排序进行比较,发现其拟合度为80%,证明综合选择指数分析方法在强优势杂交小麦组合的选育中具有较强的实用性。
In order to get the comprehensive selection index （Ⅰ value） ,thirty six hybrids were obtained from nine wheat varieties with highly different characters by NC design Ⅱ in 1999-2001. The 36 hybrids were divided into 4 groups according to their yield and yield heterosis by single characteristic method of Nair grouping. The comprehensive selection index （Ⅰ value） of strong heterosis in hybrid wheat was analyzed. The Ⅰ value order and the strong heterosis order of the hybrids were compared, the aptness being 80 %. This result indicated that the analysis method of comprehensive hselection index was more practicable in selecting the strong heterosis hybrids of wheat.
出处
《河南农业科学》
CSCD
北大核心
2008年第6期27-30,共4页
Journal of Henan Agricultural Sciences
基金
国家小麦育种中心杨凌分中心资助项目(1999-5)
