干旱地区农业研究Issue(1)：258-261,267,5.DOI:10.16302/j.cnki.1000-7601.2015.01.042
青藏高原干旱地区8种主栽小麦品种对旱雀麦的化感作用评价
Evaluations on allelopathy of eight main cultivated wheat varieties to Bromus tectorum Linn in Qinghai-Tibet plateau arid zone
摘要
Abstract
To evaluate allelopathy effects ,equal compartment agar method (ECAM ) was used to inoculate eight main wheat varieties from Qinghai province of the Qinghai-Tibet plateau with dry oats ( Bromus tectorum Linn ) that func-tioned as the receptor .The experimental results showed:eight varieties of wheat to Bromus tectorum Linn of Germination rate and potential inhibition range 2 .78% ~69 .44% .Gaoyuan 448 inhibition the strongest and Lemai 5 is the weakest , Qingchun 38、Gaoyuan 437、Tongmai1to Bromus tectorum Linn germination inhibition rate reached more than 10% , Huzhuhong、Humai 14 showed negative inhibition .Correlation analysis results:P value of root length is 0 .0166 shoot is 0 .0194 and dry weight is 0 .0001 reached a significant level ,the fresh weight of P values greater than 0 .5 ,no correla-tion .Using RI value as an allelopathic index ,as well as a cluster analysis ,one variety (Gaoyuan 448 ) was concluded to possess strong allelopathic effect ,four varieties(Qingchun 38 ,Gaoyuan 437 ,Tongmai 1 ,Abo) were found to be moderately allelopathic ,and three other varieties (Huzhuhong ,Humai 14 ,Leimai 5) were demonstrated to have no allelopathy .关键词
青藏高原/小麦品种/化感作用/RI值Key words
Qinghai-Tibet plateau/wheat varieties/allelopathy/RI values分类
农业科技引用本文复制引用
陶俊杰,李玮,魏有海,郭青云..青藏高原干旱地区8种主栽小麦品种对旱雀麦的化感作用评价[J].干旱地区农业研究,2015,(1):258-261,267,5.基金项目
公益性行业（农业）科研专项农田杂草防控技术研究与示范 （）
