河北省小麦主栽品种对茎基腐病抗性鉴定及评价指标相关性分析  

Evaluation of resistance of commercial wheat cultivars to Fusarium crown rot caused by Fusarium pseudograminearum in Hebei province

作　　者：吴玉星 韩森 王亚娇[1] 张巧丽 高建海 栗秋生[1] 孔令晓[1] WU Yuxing;HAN Sen;WANG Yajiao;ZHANG Qiaoli;GAO Jianhai;LI Qiusheng;KONG Lingxiao(Institute of Plant Protection,Hebei Academy of Agricultural and Forestry Sciences,Integrated Pest Management Center of Hebei Province,Key Laboratory of Integrated Pest Management on Crop in Northern Region of North China,Ministry of Agriculture and Rural Affairs,Baoding 071000,China;Bureau of Agriculture and Rural Affairs in Cangzhou,Hebei Province,Cangzhou 061000,China)

机构地区：[1]河北省农林科学院植物保护研究所,河北省农业有害生物综合防治工程技术研究中心,农业农村部华北北部作物有害生物综合治理重点实验室,保定071000 [2]河北省沧州市沧县农业农村局,沧州061000

出　　处：《植物保护》2023年第6期267-271,283,共6页Plant Protection

基　　金：河北省农林科学院现代农业科技创新工程(2022KJCXZX-ZBS-7);河北省农林科学院基本科研业务费(2021120201)。

摘　　要：为明确河北省小麦主栽品种对假禾谷镰刀菌Fusarium pseudograminearum引起的小麦茎基腐病的抗性水平,采用温室苗期与田间接种鉴定相结合的方法,评价20份河北省小麦主栽品种的抗病性。结果显示,‘衡0628’苗期表现为抗病,‘山农22’等6个品种苗期表现为中抗,‘冀麦585’等5个品种成株期表现为中抗,‘石麦15’和‘藁优5766’2个品种在苗期和成株期均表现为中抗。抗性指标相关性分析结果显示,苗期病情指数与茎基部组织中病原菌DNA含量有极强的相关性,成株期病情指数与白穗率有显著相关性。本研究结果表明,‘石麦15’和‘藁优5766’两个品种的抗性水平较高,且抗性稳定,可利用苗期茎基部组织中病原菌DNA含量及成株期白穗率分别作为评价小麦茎基腐病苗期及成株期抗性的指标之一。This study aimed to clarify the resistance level of the commercial wheat cultivars to Fusarium crown rot(FCR)caused by Fusarium pseudograminearum in Hebei province.FCR resistance of twenty cultivars was evaluated using inoculation at both seedling and maturity stages in the greenhouse and field,respectively.The results showed that‘Heng 0628’showed resistance to F.pseudograminearum.In addition,six cultivars such as‘Shannong 22’showed moderate resistance at seedling stage.Five cultivars including‘Jimai 585’showed moderate resistance at maturity stage.‘Shimai 15’and‘Gaoyou 5766’showed moderate resistance at both seedling and maturity stages.The disease index has a strong correlation with the DNA content of F.pseudograminearum in stem base at seedling stage.Also,there is a significant correlation between disease index and incidence of white head at maturity stage.The above results showed‘Shimai 15’and‘Gaoyou 5766’had good and stable resistance levels.More importantly,DNA detection amount of F.pseudograminearum at the base of the seedling stem and the incidence of white head at maturity stage can be used as indicators to evaluate the FCR resistance of wheat cultivars.

关 键 词：小麦品种 茎基腐病 假禾谷镰刀菌 抗性评价 

分 类 号：S432.2[农业科学—植物病理学]