不同试验设计对玉米杂交组合的选择效果  

Selection Effects of Maize Hybrids by Different Trail Designs

作　　者：司书丽[1] 王占森[1] 谢虹[1] 何光荣[1] 李立公[1] 张旭[1] 

机构地区：[1]中国农业大学农学与生物学院,北京100193

出　　处：《中国农学通报》2010年第3期94-98,共5页Chinese Agricultural Science Bulletin

基　　金：国家科技支撑计划项目(2007BAD69B05)

摘　　要：为了解不同试验设计对玉米杂交组合的选择效果,对玉米杂交组合在鉴定、品比和单株试验环境下产量和株型表现进行了比较研究。结果表明:在单株种植(60 cm×60 cm)的条件下,杂交组合的产量表现与其在品比试验环境中产量的表现相关极显著,株型性状的表现也较一致,同时,很多不利的株型性状能充分地表现出来,更有利于组合的选择与淘汰。而目前采用的单行区鉴定试验环境中,杂交组合的产量表现与其在品比试验环境中的表现相关不显著。采用单株种植设计进行杂交组合的产量测验,不仅可以克服单行区鉴定试验中存在的相邻组合相互干扰的问题,而且能节省试验用地,减少人力、物力开支。In order to understand the selection effects of maize hybrids with different trail designs,the contrast studies on the yield and plant-type appearances of maize hybrids were conducted in this article.The results demonstrated that the high significant correlation at 1%level existed between the variety trial and the single-plant trial,and that the plant-type appearances in the two environments were more consistent.Some harmful plant-type traits appeared amply in single-plant trial,so it was easier to choose elite hybrids and to eliminate worthless hybrids.Meanwhile,the yield appearance in identical trial had non-significant correlation with that in variety trial.Using single plant design for yield test of maize hybrids,the problem of disturbing from near lines each other could be resolved,and many experimental soils,workers and other pays could be saved.

关 键 词：玉米 组合鉴定 试验设计 

分 类 号：S513.037[农业科学—作物学]