江西农业学报Issue(7)：14-17,4.
川谷 A配组水稻组合的稻瘟病抗性和产量及产量构成因子通径分析
Path Analysis of Rice Blast Resistance and Yield and Yield Components of Rice Combinations from Chuangu A
摘要
Abstract
Chuangu A is an indica CMS line bred by Rice Research Institute of Sichuan Agricultural University , and it has strong resistance and wide resistant spectrum to rice blast .The rice blast resistances of 48 hybrid rice combinations from Chuangu A were identified in Pujiang area of Sichuan , and the results showed that these 48 combinations all displayed a strong resistance to rice blast.In the meanwhile, the path analysis of the yield and yield components of 48 combinations was carried out , and the results in-dicated that the direct contribution of various yield components to the single -plant yield had the following order:the number of total grains per spike (0.6995) >the number of effective spikes (0.6307) >seed setting rate (0.5064) >1000 -grain weight (0.2577).So in hybrid rice breeding with Chuangu A , we should emphatically improve the number of effective spikes and seed set -ting rate on the premise of ensuring the number of total grains per spike .关键词
川谷A/杂交稻组合/稻瘟病抗性/产量构成因子/通径分析Key words
Chuangu A/Hybrid rice combination/Rice blast resistance/Yield components/Path analysis分类
农业科技引用本文复制引用
文绍山,焦峻..川谷 A配组水稻组合的稻瘟病抗性和产量及产量构成因子通径分析[J].江西农业学报,2014,(7):14-17,4.基金项目
四川省财政基因工程项目（JYGC2011-022）；四川“十二五”水稻育种攻关计划项目（YZGG2011-1）；四川省德阳市科技支撑计划项目（2012NZ026-5、2013NZ053）。 （）
