玉米杂交组合灌浆期穗下节间抗折特性比较研究  

Comparison of Breaking Resistance of the First Internode below Ear in Filling Stage of Maize Hybrids

作　　者：唐海涛[1] 张彪[1] 梅碧蓉[2] 康继伟[1] 陈洁[1] 谭君[1] 何文铸[1] 

机构地区：[1]四川省农业科学院作物研究所/国家玉米改良分中心,四川成都610066 [2]成都市农林科学院作物研究所,四川成都611130

出　　处：《作物杂志》2013年第5期40-43,共4页Crops

基　　金："863"项目"西南山地强优势玉米杂交种的创制与应用"(2011AA10A103-2)

摘　　要：通过对89个玉米杂交组合灌浆期穗下节间长、穗下节间直径、穗下节间茎皮厚、穗下节间抗折力等性状的比较,发现穗下节间抗折力相关性状呈现较强的多态性,并表现出数量性状的特点;玉米杂交组合灌浆期穗下节间长表现出偏态分布的特点;穗下节间直径、穗下节间抗折力表现出正态分布的特征。通过灰色关联度分析发现,对玉米杂交组合灌浆期穗下节间抗折力影响力大小依次是穗下第一茎节直径、穗下第一节间长和穗下第一茎节皮厚。The breaking resistance of the first internode below ear of 89 hybrids of corn in filling stage were cornparatively analyzed in this study. The results showed that the breaking resistance were various as quantitative character. Length of the first internode below ear was skew distribution. The stalk width and power of breaking resistance of the first internode below ear were normal distribution. The result of grey relational analysis showed that the effect of agronomic characters on the breaking resistance in turn was width of the first intemode below ear,length of the first internode below ear, and inner bark thick of the first intemode below ear.

关 键 词：玉米杂交组合 灌浆期 穗下节间 抗倒伏(折)性 

分 类 号：S513[农业科学—作物学]