南方农业学报2011，Vol.42Issue(4)：368-371,4.
10个玉米自交系配合力效应和杂优组合模式评价
Estimation of combining ability and heterosis in ten maize inbred lines
摘要
Abstract
[Objective]The objective of the current study was to evaluate the combining ability and hybrid patterns in maize inbred lines in order to utilize them together with new hybrid combinations of test-crosses. [Method]Ten maize inbred lines, bred at Liuzhou Agricultural Research Institute, Liuzhou,Guangxi (China), were planted in field in randomized block design (incomplete diallel cross) with three replicates. Combining ability of agronomic traits in 25 combinations were investigated. [Result]The yield, ear length, ear diameter, rows per ear, 100-grain weight and seed-producing rate of different combinations differed significantly at 0.01 or 0.05 probability levels. The order of GCA value (general combining ability) of male parents was Liu 5112＞liu 5115＞Liu 2006＞Liu 2106＞Liu 5108, while the order of female parents was Liu 4073＞Liu 4075＞Liu 407＞Liu 4209＞Liu 4206. The SCA value (specific combining ability) of six combinations, viz.,Liu 4075×Liu 5112, Liu 4073×Liu 5112, Liu 4073×Liu 2106, etc., were much higher than the others. [Conclusion]GCA effect value of inbred lines Liu 407, Liu 4073, Liu 5112 and Liu 5115 were quite high. The hybrid combinations crossed by them had significant advantages in the yield, ear length, grains per row, etc., and had good potentials in heterosis utilization.关键词
玉米/自交系/一般配合力/特殊配合力/杂优模式Key words
maize/ inbred line/ general combining ability/ special combining ability/ heterosis pattern分类
农业科技引用本文复制引用
陈桂兰,阳康春,蒙月群,刘大海,阳俭,周颀..10个玉米自交系配合力效应和杂优组合模式评价[J].南方农业学报,2011,42(4):368-371,4.基金项目
广西柳州市科学技术局项目(2009050604) （2009050604）
广西农业科学院院市合作研究项目(桂农科[2010]30号) （桂农科[2010]30号）
