小麦顶三叶与主要农艺性状的相关性分析

Correlation analysis on top three leaves and some main agronomic trait of wheat

小麦是我国北方主要的粮食作物,小麦植株性状与产量性状的关系对其高产优质栽培和品种选育具有重要意义.研究小麦顶三叶与产量性状的关系,结果表明:小麦旗叶长、旗叶宽、穗长、小穗数、千粒质量、夹角等性状的变异幅度大;旗叶面积与穗粒数呈极显著正相关,品种选育选择旗叶叶面积较大、长度适中、宽度较大,倒二叶和倒三叶长度、宽度及叶面积均较小的倒塔型株型品种较为理想,可为选育优质高产小麦新品种提供参考依据.

Wheat is the main crop in north China. The research on the correlation between the wheat plant traits and yielding traits is of great significance to its high yield and breeding. This paper studies the relationship between wheat the top three Leaves and yield traits and concludes that wheat flag leaf length, leaf width, the ear length, spikelet number, grains, and angle can vary in a great range. Flag leaf＇s area has positive correlation with grain number per spike. The breeding can choose the ones with larger flag area, moderate length and larger width. The upside-down tower wheat type with down two leaves or down three leaf＇s length, smaller width choose new wheat type with high yield and good