高寒山区几个玉米自交系数量性状配合力分析

Combining Ability Analysis on the Main Quantitative Characters of several Maize Inbred lines in High Altitude Regions

利用９ 个 玉米 自交 系， 按 Ｇｒｉｆｆｉｎｇ 完全 双 列 杂交 方 法 ４ 组 配 成３６ 个 杂 交 组 合 进行 试验。对主 要数量性 状的一 般配合 力、特 殊 配合 力、配合 力总 效 应以 及各 自 交系 的特 殊 配合 力 方差进行估 算和分 析。结果 表明，自交 系４１１ 的一 般配合力 最高，自 交系 ４０５ 和 琼１８０ 具 有较 高的 一般配合力 和特殊 配合力方 差，其配 制的组合 配合力 总效应高 ，系组配 强优势杂 交组合的 优良自 交系。

In this paper,9 maize inbred lines used were crossed according to Griffing's method four,36 hybrids were got.Complete random block design was taken.Estimation and analysis on GCA,SCA,TCA of main quantitative characters and variance of SCA of every line The results showed that inbred line 411 had highest GCA,inbred line 405 and qiong 180 had higher GCA and variance of SCA Higher TCA on hybrids of these lines were crossed They were fine inbred line in hybrids were got.