吉林农业大学学报2011，Vol.33Issue(2)：144-150,157,8.DOI:CNKI:22-1100/S.20110310.1634.010
水稻成株期对纹枯病的抗性表现研究
Study of Resistance of Rice to Sheath Blight at Adult Plant Stage
摘要
Abstract
In order to study resistance performance of rice to sheath blight (SB), five rice cultivars with different levels of resistance to SB were inoculated with toothpick insertion inoculation methods during different times of rice adult stage in field and temperature-controlled greenhouse, and the lesion length during 3- 11 days after inoculation, the SB disease rating at the 30th day after heading stage were investigated.The results were as follows: The SB resistance levels evaluated with the lesion length among 5 cultivars inoculated at the late tillering stage in temperature-controlled greenhouse differed significantly at 1％ level and could be divided into three groups, relatively susceptible (Lemont), moderate susceptible to moderate resistant (Wuyujing 3, Jasmine 85, Teqing) and relatively resistant (YSBR1), and the resistant-to-susceptible order among five cultivars was consistent with the result of the 30th day after heading stage,which was achieved by verification trial in the field. Although the SB resistance levels among 5 cultivars inoculated at the same time in field differed also significantly at 1％ level, the resistant-to-susceptible order among five cultivars was inconsistent with that of the 30th day after heading stage. Furthermore, the SB resistance levels among 5 cultivars inoculated at the small booting stage in field differed significantly at 1％ level, and the resistant-to-susceptible order among five cultivars was consistent with that of the 30th day after heading stage. The results showed that the lesion length used as investigation index to evaluate rice SB resistance at the late tillering stage in greenhouse or at the booting stage in field was feasible.关键词
水稻/纹枯病/人工接种/抗性鉴定Key words
rice/ sheath blight/ artificial inoculation/ resistance identification分类
农业科技引用本文复制引用
王子斌,左示敏,李刚,陈夕军,陈宗祥,张亚芳,潘学彪..水稻成株期对纹枯病的抗性表现研究[J].吉林农业大学学报,2011,33(2):144-150,157,8.基金项目
国家自然科学基金项目(30671283,30900883),国家公益性行业(农业)科研专项项目(NYHYZX3216) （30671283,30900883）
