热带作物学报2017，Vol.38Issue(1)：126-130,5.DOI:10.3969/j.issn.1000-2561.2017.01.022
荔枝果实对霜疫霉侵染抗性评价体系建立及初步应用
Establishment and Preliminary Application of the Resistance Evaluation System of Litchi Fruit to Downy Blight
摘要
Abstract
In order to establish a stable resistance evaluation system of litchi fruit to downy blight,the influence on disease index (DI) of concentration of inoculation sporangia and time of record for symptom were studied among different litchi germplasms.The results showed that the disease symptom of ‘Feizixiao'and ‘Dadingxiang'inoculated with 4×l&/mL sporangia occurred at moderate speed,and the disease index of 72 h was relatively stable,which was a proper time of symptom survey for resistance to downy blight of litchi.During 2012-2016,the system was applied to evaluate the resistance to downy blight among 15 litchi cultivars.The resistance grades of these cultivars were almost the same in different years,and ‘Heiye'and ‘Guiwei'was the most stable resistant and susceptible cultivars,respectively.These confirmed that the resistance evaluation system of litchi fruit to downy blight was stable.关键词
荔枝/荔枝霜疫霉菌/抗性/评价体系Key words
litchi/Phytophthora litchii/resistance/evaluation system分类
农业科技引用本文复制引用
曹璐璐,孙进华,王家保..荔枝果实对霜疫霉侵染抗性评价体系建立及初步应用[J].热带作物学报,2017,38(1):126-130,5.基金项目
国家自然科学基金(No.31301766) （No.31301766）
中央级公益性科研院所基本科研业务费专项资金(中国热带农业科学院院本级)资助项目(No.1630042012003) （中国热带农业科学院院本级）
国家荔枝龙眼产业技术体系(No.CARS-33-02). （No.CARS-33-02）
