棉花种质立枯病抗性室内鉴定  

Indoor Identification of Cotton Germplasms Resistance to Rhizoctonia solani

作　　者：郭宝生[1] 李丹[1] 赵存鹏[1] 潘转霞[2] 刘素恩[1] 王凯辉[1] 杨六六 耿军义[1] GUO Bao-sheng;LI Dan;ZHAO Cun-peng;PAN Zhuan-xia;LIU Su-en;WANG Kai-hui;YANG Liu-liu;GENG Jun-yi(Cotton Research Institute of Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Cotton Biology and Genetic Breeding of Huanghuaihai Semiarid Area,Ministry of Agriculture and Rural Affairs/Hebei Branch of National Cotton Improvement Center,Shijiazhuang 050051,China;Institute of Cotton Research,Shanxi Agricultural University,Yuncheng 044000,China)

机构地区：[1]河北省农林科学院棉花研究所/农业农村部黄淮海半干旱区棉花生物学与遗传育种重点实验室/国家棉花改良中心河北分中心,河北石家庄050051 [2]山西农业大学棉花研究所,山西运城044000

出　　处：《河北农业科学》2024年第1期51-54,共4页Journal of Hebei Agricultural Sciences

基　　金：河北省重点研发计划项目(21326329D);河北省农林科学院创新工程项目(2022KJCXZX-MHS-2)。

摘　　要：为了培育抗立枯病棉花新品种,对350份棉花种质进行室内接种立枯丝核菌鉴定,调查立枯病的发病情况,筛选高抗立枯病的种质。鉴定结果表明:350份种质平均病情指数最大值为63.00、最小值为7.91,种质间病情指数的变异系数为36.29%,不同种质的立枯病抗性差异较大。参试种质中,没有对立枯病表现免疫的种质;有抗病种质86份,占鉴定种质总数的24.6%,其中高抗种质6份。筛选的抗立枯病种质为棉花抗病育种和抗病机理研究提供了基础种质信息。In order to cultivate new cotton varieties resistant to Rhizoctonia solani,350 cotton germplasm were identified through indoor inoculation with R.solani,and the incidence of bacterial wilt disease was investigated to screen for germplasm with high resistance to it.The identification results showed that the average disease index of 350 germplasm had a maximum value of 63.00 and a minimum value of 7.91,and the variation coefficient of disease index among germplasm was 36.29%.There were significant differences in the resistance to R.solani among different germplasm.Among the tested germplasm,there is no germplasm that showed immunity to R.solani.There are 86 resistant germplasm,accounting for 24.6%of the total identified germplasm,including 6 highly resistant germplasm.The screened resistant germplasm could provide basic germplasm information for cotton disease resistance breeding and research on disease resistance mechanism.

关 键 词：棉花 立枯病 抗病鉴定 

分 类 号：S562[农业科学—作物学]