小麦品种(系)抗麦红吸浆虫鉴定技术研究  

A method on resistance evaluation of wheat varieties to sitodiplosis mosellana

作　　者：成卫宁[1] 李修炼[1] 仵均祥[1] 李建军[1] 

机构地区：[1]西北农林科技大学植物保护学院植保资源与病虫害治理教育部重点实验室,陕西杨凌712100

出　　处：《干旱地区农业研究》2006年第6期44-47,共4页Agricultural Research in the Arid Areas

基　　金：国家"十五"科技攻关项目(2001BA509B03);国家自然科学基金项目(30370936);教育部重点项目(105165)

摘　　要：小麦抗麦红吸浆虫指标的制定是筛选抗虫品种,对麦红吸浆虫实行综合治理的基础工作。通过分析比较危害指数、粒被害率、估计损失率、抗性指数、相对指数及聚类分析等指标鉴定结果,发现以感虫品种为对照,以穗被害率、粒被害率、估计损失率和单穗虫数等多个指标为依据的聚类分析法的鉴定结果最符合客观实际,建议今后在麦红吸浆虫抗性鉴定中推广应用。In order to carry out integrated management of the wheat blossom midge, resistance indicator definition of wheat variety to the wheat blossom midge are the basic works in selecting and breeding resistant wheat varieties. This paper analyzed resistance identification results of wheat varieties to Sitodiplosis mosellana by using percent of grains injured, loss rate of fields, harm index, resistance index, relative index and cluster analysis as the resistance indicator. The results showed that identification result of cluster analysis with indicator of percent of grains injured, percent of ears injured, loss rate of fields and insect numbers of single ear was closest to the fact on the basis of the susceptible wheat varieties Xiaoyan 6 as control. It is suggested that the method of cluster analysis should be used in the resistance evaluation of wheat varieties to Sitodiplosis mosellana.

关 键 词：小麦品种(系) 麦红吸浆虫 抗性鉴定 聚类分析 

分 类 号：S435.122.1[农业科学—农业昆虫与害虫防治]