小麦株高整齐度的初步研究  

A Primary Study on the Evenness of Plant Height in Wheat

作　　者：于经川 刘兆晔 姜鸿明[1] 刘维正[1] 马淑丽 

机构地区：[1]烟台市农业科学研究院,山东烟台265500 [2]烟台市种子公司

出　　处：《莱阳农学院学报》2002年第1期20-22,共3页Journal of Laiyang Agricultural College

摘　　要：选用山东省区域试验的 11个小麦品种 (系 ) ,研究了株高整齐度的遗传差异及与产量因素的相互关系。结果表明 :整齐度系数在不同品种 (系 )间存在着极显著差异 ,杂交选择可有效提高品种的株高整齐度。同一品种在密植条件下的整齐度系数要显著高于稀植条件下的整齐度系数 ,整齐度系数与产量因素及籽粒产量的相关均不显著。Eleven winter wheat cultivars of regional test in Shandong Province were used to study genetic differences of plant height evenness and relationships between plant height evenness and yield components. There were significant genetic differences between different varieties for plant height evenness, which can be improved by artificial selection. Evenness index of a variety planted in high density was much higher than that planted in low density. There were not significant correlations between yield components, grain yield and evenness index. The application of evenness index in wheat breeding was discussed.

关 键 词：小麦 株高整齐度 育种 遗传差异 产量 

分 类 号：S512.103.5[农业科学—作物学]