摘要
通过对 1 1个冬春小麦杂种F1 代 6个农艺性状的相关和通径分析 ,结果表明 ,穗粒重与穗粒数、千粒重、穗长呈极显著正相关 ;穗粒数对穗粒重的直接作用最大 ,千粒重次之 ,其它性状作用较小。
agronomic characteristics of the hybrid F 1 in the spring wheat X winter wheat were analysed by the methods of coefficient correlations and path. The results showed that the grain number of per spike, spikelet number of ear, TGW and spike lenth indicated extremely positive relation with the grain weight of ear. The grain number of per spike was mostly derective effect on the grain weight of ear; next to TGW and other characteristics were less effect on the grain of ear. The results can provide a scientific basis for introducing gain genes of winter wheat in breeding new varieties of spring wheat.
出处
《宁夏农学院学报》
2003年第4期1-2,8,共3页
Journal of Ningxia Agricultural College
基金
宁夏自治区作物新品种选育重点攻关项目
关键词
小麦
杂种F1
农艺性状
相关和通径分析
wheat agronomic characteristic hybrid F 1 agronomic characteristics correlation and path analysis
