• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Plant Disease >Physiologic Specialization of Puccinia triticina on Wheat in the United States in 2014
【24h】

Physiologic Specialization of Puccinia triticina on Wheat in the United States in 2014

机译：2014年美国小麦对小麦锈菌的生理专化

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Collections of Puccinia triticina obtained from wheat fields and breeding plots in the Great Plains, Ohio River Valley, and southeastern states, were tested for virulence in 2014 in order to determine the virulence of the wheat leaf rust pathogen population in the United States. Single uredinial isolates (380 total) were derived from the collections and tested for virulence phenotype on 20 lines of Thatcher wheat that are near-isogenic for leaf rust resistance genes. In 2014, 55 virulence phenotypeswere described in the United States. Virulence phenotypes MBTNB, TBBGS, and TCRKG were the three most common phenotypes. Phenotypes MBTNBand TCRKG are both virulent to Lrll, and TCRKG is also virulent to Lrl8 and Lr26. MBTNB and TCRKG were most common in the soft red winter wheat region of the southeastern states and the Ohio Valley. Phenotype TBBGS is virulent to Lr39, which is present in the hard red winter wheat cultivars, and Lr21, which is present in the hard red spring wheat culuvars. Isolates with virulence to Lrll, Lrl8, and Lr26 were most common in the southeastern states and Ohio Valley region. Isolates with virulence to Lr21 and Lr39 were most common in the hard red wheat region of the southern and northern Great Plains.
机译：2014年对从大平原，俄亥俄州河谷和东南部各州的麦田和繁殖地获得的小麦泛锈菌的毒力进行了测试，以确定美国小麦叶锈病病原菌种群的毒力。从收集物中获得单个尿素分离株（共380个），并在撒切尔小麦的20个品系中测试了毒力表型，这些品系对叶锈病抗性基因近等基因。 2014年，美国描述了55种毒力表型。毒力表型MBTNB，TBGGS和TCRKG是三种最常见的表型。表型MBTNB和TCRKG均对Lrll有毒，TCRKG对Lrl8和Lr26也有毒。 MBTNB和TCRKG最常见于东南州和俄亥俄州山谷的软红冬麦地区。表型TBBGS对硬红冬小麦品种中存在的Lr39和硬红春小麦品种中存在的Lr21具有毒性。对Lrll，Lrl8和Lr26具有毒力的分离株在东南部各州和俄亥俄州谷地区最为常见。具有毒力的Lr21和Lr39分离株在大平原南部和北部的硬红小麦地区最为常见。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号