您好，欢迎访问河南省农业科学院 机构知识库！
河南省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

A New Identification Method Reveals the Resistance of an Extensive-Source Radish Collection to Plasmodiophora brassicae Race 4

文献类型： 外文期刊

作者： Yang, Haohui 1 ; Yuan, Yuxiang 2 ; Wei, Xiaochun 2 ; Zhang, Xiaohui 1 ; Wang, Haiping 1 ; Song, Jiangping 1 ; Li, Xixi 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Minist Agr, Key Lab Biol Genet Improvement Hort Crops, Beijing 100081, Peoples R China

2.Henan Acad Agr Sci, Inst Hort, Zhengzhou 450002, Peoples R China

关键词： radish germplasms; identification technology; clubroot; distribution of clubroot-resistance; sustainable management strategy

期刊名称：AGRONOMY-BASEL （ 影响因子：2.603； ）

ISSN：

年卷期： 2021 年 11 卷 4 期

页码：

收录情况： SCI

摘要： Raphanus sativus, an important cruciferous vegetable, has been increasingly affected by clubroot disease. Establishing a stable and accurate resistance identification method for screening resistant germplasms is urgently needed in radish. In this study, the influence of inoculum concentration, inoculation methods, and pH of the substrate on disease occurrence was studied. The result showed that the disease index (DI) was highest at 2 x 10(8) spores/mL, the efficiency of two-stage combined inoculation methods was higher than others, and pH 6.5 was favorable for the infection of P. brassicae. By using this new method, DIs of 349 radish germplasms varying from 0.00 to 97.04, presented significantly different levels of resistance. Analysis showed that 85.06% germplasms from China were susceptible to P. brassicae, whilst 28 accessions were resistant and mainly distributed in east, southwest, northwest, and south-central China. Most of the exotic germplasms were resistant. Repeated experiments verified the stability and reliability of the method and the identity of germplasm resistance. In total, 13 immune, 5 highly resistant and 21 resistant radish accessions were identified. This study provides an original clubroot-tolerance evaluation technology and valuable materials for the development of broad-spectrum resistant varieties for sustainable clubroot management in radish and other cruciferous crops.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：河南省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台