甜椒抗象耳豆根结线虫种质资源筛选  

Screening of Sweet Pepper Germplasm Resources Resistant to Meloidogyne enterolobii

作　　者：苗悦 姜秉政 曹振木[2] 成善汉[1] 汪志伟[1] 包文龙 朱婕[1] MIAO Yue;JIANG Bingzheng;CAO Zhenmu;CHENG Shanhan;WANG Zhiwei;BAO Wenlong;ZHU Jie(College of Horticulture,Hainan University,Key Laboratory of Horticultural Crop Quality Regulation of Hainan Province,Haikou 570228,Hainan,China;Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences,Haikou 571101,Hainan,China)

机构地区：[1]海南大学园艺学院,海南省热带园艺作物品质调控重点实验室,海南海口570228 [2]中国热带农业科学院热带作物品种资源研究所,海南海口571101

出　　处：《中国蔬菜》2021年第12期53-58,共6页China Vegetables

基　　金：国家自然科学基金地区科学基金项目(31760574);海南省普通高等学校研究生创新科研课题(Hys2020-240)。

摘　　要：象耳豆根结线虫(Meloidogyne enterolobii)对甜椒造成的危害越来越严重,而广泛用于育种的根结线虫抗病基因对象耳豆根结线虫逐渐失去抑制作用,急需挖掘新的抗象耳豆根结线虫种质资源。本试验对31份甜椒种质接种象耳豆根结线虫,60 d后进行抗病性鉴定。利用根结指数、卵粒指数、病情指数、繁殖系数和生殖指数5个病情指标,采用隶属函数值法,对供试种质的象耳豆根结线虫抗性进行综合评价,筛选出抗性较强的甜椒种质06SCa69-S、06SCa52-1、06SCa67M、06SCa66M、06SCa78-2等。Meloidogyne enterolobii is causing increasingly severe damage to sweet pepper.The gene widely used in nematode resistance breeding is gradually losing its inhibiting effect to Meloidogyne enterolobii.It is urgently needed to excavate new germplasm resources resistant to Meloidogyne enterolobii.This experiment inoculated Meloidogyne enterolobii to 31 sweet pepper(Capsicum annuum)grmplasms and conducted identification on their disease resistance after 60 d.Using the 5 disease indexes of Gall Index,Egg Mass Index,Disease Index,Reproduction Coefficient and Reproduction Index,and subordinative function value method,this paper carried out comprehensive evaluation on the resistance of Meloidogyne enterolobii of these tested germplasm.The screened out sweet pepper germplasm resources with strong resistance were 06SCa69-S,06SCa52-1,06SCa67M,06SCa66M and 06SCa78-2,etc..

关 键 词：甜椒 象耳豆根结线虫 抗性鉴定 隶属函数值法 

分 类 号：S436.418[农业科学—农业昆虫与害虫防治]