摘要
近年来,黑龙江省稻瘟病危害程度加重,给水稻生产造成巨大损失。为了解当地稻瘟病菌生理小种的组成与外引水稻资源的抗瘟性情况,将2006年、2007年和2008年3年采集的478个单孢菌株,利用日本的12个鉴别寄主和中国的7个鉴别寄主两套鉴别体系对黑龙江省稻瘟病菌致病型进行分类,鉴别出优势小种为77.7、377.7、737.5、100、ZE1、ZG1;强毒力小种为437、777.7、777.1、ZA9、ZA1、ZA13;利用优势菌群和240个供试单孢菌株对63份外引水稻资源进行抗瘟性筛选,筛选出抗谱80%以上的资源有G39、‘吉粳88’、‘沈农9903’,可以广为利用;同时得出利用优势小种和强毒力小种对水稻资源进行抗瘟性筛选,是一项简单而准确的初筛选技术。
The rice blast became more severe in Heilongjiang province during the past few years,experiment took 478 single conidium as material which collected in 2006,2007 and 2008.Magnaporthe oryzae pathotype of Heilongjiang had been classified by two sets of identification system,one was 12 differential hosts of Japan another was seven differential host of China.The results showed that predominant races were 77.7,377.7,737.5,100,ZE1,ZG1 and the high virulent races were 437,777.7,777.1,ZA9,ZA1,ZA13.The blast resistance of 63 imported rice resources had been identification according to predominant races predominant races and 240 single conidia.The results showed that resistance spectrum of imported rice resources exceed 80% were G39,＇ Jijing 88 ＇,＇ Shennong 9903 ＇ which can be used widely.It is a simple and accurate way to identification the blast resistance of rice resource according to predominant races predominant races.
出处
《中国农学通报》
CSCD
北大核心
2010年第21期360-363,共4页
Chinese Agricultural Science Bulletin
基金
黑龙江省自然科学基金重点项目"黑龙江省水稻主栽品种及优异品系抗瘟基因型分析"(ZJN0703-01)
黑龙江省农科院创新基金"水稻穗颈瘟预测与防控技术研究"
关键词
水稻资源
优势小种
强毒力小种
抗瘟性筛选
rice resource
predominant races
high virulent races
identification of blast resistance
