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16AGRITECHCAT5: Integrating Control strategies Against soil-borne Rhizoctonia solani in OilSeed rape (ICAROS)

16AGRITECHCAT5：针对油菜中土传立枯丝核菌的综合控制策略（ICAROS）

基本信息

批准号：
BB/P005071/1
负责人：
Rumiana Ray
金额：
$ 29.72万
依托单位：
University of Nottingham
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2016
资助国家：
英国
起止时间：
2016 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=BB%2FP005071%2F1
关键词：
16AGRITECHCAT5 Integrating Control strategies Against

项目摘要

Increased oilseed rape (Brassica napus, OSR) cropping frequency and incidence of soil-borne diseases have been recently identified as major threats and contributory causes to the current 'yield plateau' in UK OSR crops. Rhizoctonia solani, anastomosis group (AG) 2-1 is strongly associated with the presence of its main host, OSR, and the pathogen is implicated in the yield decline of the crop grown with increased frequency in the rotation. Severe damping off disease caused by AG2-1 has been shown to significantly impact on several root system architecture traits of OSR. The epidemiology and control of AG2-1 and Rhizoctonia diseases in UK OSR crops have not previously been investigated. The aim of this project is to develop new integrative strategies for disease control through work packages designed to i) identify resistance/tolerance traits and novel resistance loci which can be utilised in crop breeding; ii) elucidate disease epidemiology in relation to soil environment and host; iii) quantify yield losses due to damping off diseases caused by R. solani and iv) develop methods for control using varietal resistance and seed treatment for improved disease management and yield of OSR. This project will develop a high-throughput disease screen for phenotyping a range of Brassica napus lines, including conventional varieties, hybrids, diversity sets and mapping populations to identify novel loci for resistance against R. solani. Future strategies for effective disease management will be established through multidisciplinary studies integrating disease modelling, computed tomography and molecular biology to determine the epidemiology of R. solani in relation to its host and the environment, quantify yield losses and determine responses to seed treatment for Rhizoctonia disease. A major output at completion will be integrated guidelines incorporating novel seed treatments and varietal resistance/tolerance for improved disease management and protection of OSR yield.

最近，油菜（甘蓝型油菜，OSR）种植频率和土传病害发病率的增加已被确定为英国 OSR 作物目前“产量停滞不前”的主要威胁和促成因素。立枯丝核菌，吻合群 (AG) 2-1 与其主要宿主 OSR 的存在密切相关，并且该病原体与轮作频率增加的作物产量下降有关。 AG2-1 引起的严重猝倒病已被证明对 OSR 的几个根系结构性状有显着影响。英国 OSR 作物中 AG2-1 和丝核菌病害的流行病学和控制此前尚未进行过调查。该项目的目的是通过工作包开发新的疾病控制综合策略，旨在 i) 识别可用于作物育种的抗性/耐受性特征和新的抗性位点； ii) 阐明与土壤环境和寄主相关的疾病流行病学； iii) 量化由立枯病菌引起的猝倒病害造成的产量损失，以及 iv) 开发利用品种抗性和种子处理进行控制的方法，以改善病害管理和 OSR 产量。该项目将开发高通量疾病筛选，用于对一系列甘蓝型油菜品系进行表型分析，包括常规品种、杂交品种、多样性集和群体定位，以识别抗茄病菌的新位点。未来有效的疾病管理策略将通过整合疾病模型、计算机断层扫描和分子生物学的多学科研究来制定，以确定立枯丝核菌与其宿主和环境相关的流行病学，量化产量损失并确定对丝核菌病种子处理的反应。完成后的主要成果将是纳入新型种子处理和品种抗性/耐受性的综合指南，以改善疾病管理和保护 OSR 产量。