玉米昌7-2近缘系及其杂交后代性状比较分析  

Comparison and Analysis of Characters and Yield of Chang 7-2’s Related Inbred Lines and Their Hybrid Combinations

作　　者：赵亚丽[1] 李潮海[1] 王小星[1] 王群[1] 杨青华[1] 汤继华[1] 

机构地区：[1]河南农业大学农学院/农业部玉米区域技术创新中心,郑州450002

出　　处：《玉米科学》2008年第1期47-51,共5页Journal of Maize Sciences

摘　　要：以4个昌7-2近缘系为材料,研究了昌7-2近缘系及其杂交后代性状和产量的差异。结果表明:浚928的株高、穗位高、叶向值等形态性状的改良效果优于安昌7-2和甘昌7-2,新7红的改良效果最差,安昌7-2的形态性状优于甘昌7-2,且杂交组合间形态性状的差异与其父本间的差异一致;各近缘系及其杂交组合的叶绿素和丙二醛含量存在差异;4个昌7-2近缘系组配的杂交组合的产量存在显著差异,各杂交组合产量顺序为:郑58×浚928>郑58×安昌7-2>郑58×甘昌7-2>郑58×新7红。The differences of characters and grain yield of Chang 7-2＇ s related lines and their hybrid combinations were studied using 4 Chang 7-2＇ s related lines. The results showed that the effect on the improvement of the agronomic characters of X928, such as plant height, ear position height and the leaf orientation value and so on, was better than those of A7-2 and G7-2, while that of XTH was worst. The agronomic characters of A7-2 were better than that of G7-2, moreover, the difference of the agronomic characters of the hybrid combinations was consistent with that of their fathers. The difference of the chlorophyll content and MDA content was also consistent with that of the agronomic characters. In addition, there were significant differences of grain yield among the 4 hybrid combinations of Chang 7-2, the sequence of the yield of the 4 hybrid combinations was Z58 × X928 〉 Z58 × A7-2 〉 Z58 × G7-2 〉 Z58 × X7H, and the yield characters of 4 hybrid combinations were consistent with their yield on the whole.

关 键 词：玉米 近缘系 性状 产量 

分 类 号：S513.02[农业科学—作物学]