南方农业学报2017，Vol.48Issue(11)：1999-2003,5.DOI:10.3969/j.issn.2095-1191.2017.11.12
广西野生稻稻瘟病抗性鉴定及抗源地理分布
Blast resistance identification for wild rice from Guangxi and geographical distribution of resistant resources
摘要
Abstract
[Objective]Resistance of wild rice in Guangxi to blast was studied to provide new resistant materials for breeding blast resistant rice and exploring blast resistant genes.[Method]Identification method of artificial inoculation was adopted to inoculate wild rice from Guangxi with rice blast mixed strains ZA1,ZB1,ZB15 and ZC15 at seedling stage and booting stage. Resistance of different wild rice materials to leaf blast and panicle blast was investigated,resis-tant and sensitive materials were counted. Statistic analysis was carried out based on the geographic origins of resistance materials.[Result]Out of the common wild rice materials,188 materials were found to be resistant to leaf blast and nine materials were resistant to panicle blast,accounting for 11.85% and 0.58% respectively of the total;73 materials were found to be resistant to leaf blast and five materials were resistant to panicle blast from medicinal wild rice,accounting for 36.68% and 2.54% respectively of the total;nine materials from common wild rice and four materials from medicinal wild rice were found to be resistant to both leaf blast and panicle blast,accounting for 0.58%and 2.03%respectively of the total. Guigang and Wuzhou were areas where the most wild rice blast resistant materials in Guangxi were found.[Conclusion]There are abundant wild rice resources with resistance to leaf blast in Guangxi,but lack resources with resis-tance to panicle blast or to both leaf blast and panicle blast. So resources with resistance to panicle blast and resistance to both leaf blast and panicle blast should be further explored.关键词
野生稻/稻瘟病/抗性/地理分布/广西Key words
wild rice/rice blast/resistance/geographical distribution/Guangxi分类
农业科技引用本文复制引用
陈灿,郭辉,张晓丽,刘百龙,秦学毅,冯锐..广西野生稻稻瘟病抗性鉴定及抗源地理分布[J].南方农业学报,2017,48(11):1999-2003,5.基金项目
国家自然科学基金项目(31560385) （31560385）
广西自然科学基金项目(2015GXNSFAA139060) （2015GXNSFAA139060）
广西科学研究与技术开发计划项目(桂科AB16380138) （桂科AB16380138）
广西农业科学院科技发展基金项目(2015JM06) （2015JM06）
