小麦叶片性状与主要农艺性状的相关性研究

目的]研究小麦叶片性状与主要农艺性状的相关性,为培育高产、优质的冬小麦新品种提供理论参考。方法]以16个品种（品系）为试材,采用相关分析方法,对小麦叶片性状与主要农艺性状之间的相关性进行统计。结果]小麦叶片性状与主要农艺性状之间存在着不同程度的相关性。小麦旗叶长与小穗数、抽穗期、开花期呈极显著负相关（r=-0.674 5,r=-0.716 6,r=-0.700 7）,与穗粒数呈显著正相关（r=0.558 0）;旗叶面积与穗粒数呈极显著正相关（r=0.623 8）。倒二叶长与株高呈极显著正相关（r=0.627 7）;倒二叶宽与单穗重呈显著正相关（r=0.500 7）;倒二叶面积与株高、穗粒数呈显著正相关（r=0.512 6,r=0.561 8）。倒三叶宽与不孕小穗数、抽穗期、开花期呈显著正相关（r=0.565 6,r=0.502 5,r=0.501 9）;倒三叶面积与抽穗期、开花期呈显著正相关（r=0.614 3,r=0.522 3）;与产量负相关不显著（r=-0.466 9）。结论]小麦植物体呈塔状长相,旗叶适当缩短,倒二叶长度适中,倒三叶适当加长,这样的结构有利于提高小麦的光合效率和籽粒产量。

Correlation Analysis on Leaf Characters and Some Main Agronomic Traits of Wheat

Objective] The research aimed to study the correlation of leaf characters and some main agronomic traits of wheat and provide references for the breeding of wheat.Method] 16 wheat varieties(lines) were used to study the correlation of leaf characters and some main agronomic traits of wheat.Result] The results showed that the correlation between flag leaf length and the spikelet number,spiking,flowering were negative significantly(r=-0.674 5,r=-0.716 6,r=-0.700 7).The correlation between flay leaf length ...