小麦叶片性状的杂种优势及配合力分析  

Analysis on Combining Ability and Heterosis of Leaf Traits in Wheat

作　　者：薛香[1] 杨忠强[1] 岳海凤[1] 郜庆炉[1] 

机构地区：[1]河南科技学院,河南新乡453003

出　　处：《辽宁农业科学》2008年第2期1-3,共3页Liaoning Agricultural Sciences

基　　金：河南省自然科学基金(0511031100);河南省高校创新人才培养工程(豫教高[2005]126号)

摘　　要：为了研究小麦叶片性状的遗传,选用9个亲本,组配成20个不完全双列杂交组合进行试验,对9个小麦品种冠层叶片性状的配合力和遗传特点进行了分析研究。结果表明:各性状的一般配合力都较高,其中旗叶基角、倒二叶基角、倒二叶张开角性状遗传以加性效应为主,遗传率高且表现为负向中亲优势。藁麦6、郑麦004、百泉3039、济麦20使后代有叶片变宽、叶片角度变小的作用,可以作为培育具有光合效率高和通风透光性好的优良株型小麦品系的优良亲本材料。The combining ability and heterosis of the canopy leaf characters of 9 wheat varieties were studied by using the 20 F1 hybrids derived from incomplete diallel cross with 9 random parents. The results showed that general combining ability of many traits of canopy leaves were higher and controlled by gene additive effects ; flag basal angle and top 2nd leaf basal angle and top 2nd leaf open angle mainly controlled by additive genetic effect and had middle parent superiority tended to negative. Gaomai 6, Zhengmai004, Baiquan3039 and Jimai20, having reasonable canopy structure, can be used as excellent crossing parents to obtain good wheat variety with nice plant shape.

关 键 词：小麦 叶片性状 杂种优势 配合力分析 

分 类 号：S512.101[农业科学—作物学]