江西农业大学学报2012，Vol.34Issue(3)：439-444,6.
青海省青稞主栽品种农艺性状分析
Analysis of Agronomic Characters of Major Hulless Barley Cultivars in Qinghai Province
摘要
Abstract
In order to study the diversity of the genetic basis of the hulless barley cultivars in Qinghai and provid helpful information for the genetic improvement and breeding utilization of hulless barley,the agronomic characters of 26 hulless barley cultivars were evaluated by using the statistical methods of simple and partial correlation analysis, multiple stepwise regression and path analysis in order to provide helpful information for the genetic improvement of hulless barley. The results showed that the degree and range of 9 agronomic characters variation is were quite large, and some species have had certain available advantages. The correlation analysis showed that multiple traits influenced the grain yield; multiple stepwise regression and path analysis showed that spike number per plant, 1000 grain weight and grain number per spike is were the main affecting factors in grain weight per plant. And 75.2% variation of grain weight per plant could be explained by the multiple regression equations Y= -17.848+1.548 X1 +0.368X2-0.428X3+0.192X4-0.048X5. The results showed that the hulless barley cultivars in Qinghai had high diversity in agronomic characters and rich genetic basis. And In in the character selection, attention should be paid to the spike number per plant and 1000 grain weight selection, and the mutual restrict relationship between spike length and 1000 grain weight, spike number per plant and grain number per spike should be concerned.关键词
青稞/农艺性状/相关分析/聚类分析Key words
hulless barley/ agronomic characters/ correlation analysis/ clustering analysis分类
农业科技引用本文复制引用
陈丽华,张志斌,侯志强,邓晓青,吴昆仑..青海省青稞主栽品种农艺性状分析[J].江西农业大学学报,2012,34(3):439-444,6.基金项目
现代农业产业技术体系建设专项资金(CARS-05)资助 （CARS-05）
