...
首页> 外文期刊>Journal of the American Society for Horticultural Science >Evaluation of elite native strawberry germplasm for resistance to anthracnose crown rot disease caused by Colletotrichum species.
【24h】

Evaluation of elite native strawberry germplasm for resistance to anthracnose crown rot disease caused by Colletotrichum species.

机译:评估优质天然草莓种质对炭疽菌引起的炭疽病冠腐病的抗性。

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

Anthracnose crown rot of cultivated strawberry (Fragaria x ananassa Duchesne ex Rozier) has been a major disease problem in the strawberry producing regions of the southeastern United States since the early 1970s. Chemical controls are often inadequate, but use of resistant cultivars is seen as a credible option for managing this disease. Only a small portion of Fragaria L. germplasm has been screened for resistance to anthracnose crown rot. A core subset of the Fragaria collection maintained at the U.S. Department of Agriculture National Clonal Repository in Corvallis, OR, has been constructed to contain an elite group of native F. virginiana Mill. and F. chiloensis (L.) Mill. This collection, referred to as the "core collection," has been characterized for many horticultural traits, including reactions to several common foliar diseases, resistance to black root rot (causal organisms unknown), and resistance to northern root-knot nematode (Meloidogyne hapla Chitwood) and root-lesion nematode [Pratylenchus penetrans (Cobb) Filipjev & Shuurmans Stekhoven]. Our objective was to evaluate the core collection for resistance to a selection of isolates of three Colletotrichum Corda species known to cause strawberry anthracnose, Colletotrichum fragariae A.N. Brooks, Colletotrichum gloeosporioides (Penz.) Penz. & Sacc. in Penz. [teleomorph Glomerella cingulata (Stoneman) Spauld. & H. Schrenk], and Colletotrichum acutatum J.H. Simmonds (teleomorph Glomerella acutata J.C. Guerber & J.C. Correll). No Fragaria subspecies or geomorph was more resistant than any other; rather, individual genotypes within these groups were identified as sources from which resistance can be obtained. Collecting germplasm in areas of intense disease pressure may not be as beneficial as one might assume, at least where anthracnose crown rot disease is concerned.
机译:自1970年代初以来,栽培草莓的炭疽病冠腐病(Fragaria x ananassa Duchesne ex Rozier)一直是美国东南部草莓产区的主要疾病问题。化学控制通常不足,但使用抗性品种被视为治疗该病的可靠选择。对于草莓炭疽菌冠腐病,仅对一小部分草莓属种质进行了筛选。在美国俄勒冈州科瓦利斯的美国农业部国家克隆仓库中保存的草莓属植物的核心子集,已被构造成包含一群精制的天然弗吉尼亚州烟草。和F. chiloensis(L.)Mill。该集合被称为“核心集合”,具有许多园艺特征,包括对几种常见的叶类疾病的反应,对黑根腐烂(因果生物未知)的抗性以及对北根结线虫(Meloidogyne hapla)的抗性Chitwood)和根部线虫病[Pratylenchus penetrans(Cobb)Filipjev&Shuurmans Stekhoven]。我们的目标是评估核心菌株对三种已知导致草莓炭疽病的炭疽菌(Colletotrichum fragariae A.N.)的分离菌株的抗性。布鲁克斯,Colletotrichum gloeosporioides(Penz。)Penz。 &Sacc。在彭茨。 [Teelemorph Glomerella cingulata(Stoneman)Spauld。 &H. Schrenk]和Colletotrichum acutatum J.H. Simmonds(teleomorph glomerella acutata J.C. Guerber&J.C. Correll)。没有一个草莓属亚种或地貌比其他任何抗性都更强。相反,将这些组中的个体基因型鉴定为可从中获得抗药性的来源。至少在涉及炭疽病冠腐病的地方,在疾病压力大的地区收集种质可能没有人们想象的那么有益。

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