谷子(粟)白发病抗病性研究Ⅲ.粟优异种质对白发病生理小种抗谱的测定  

ON THE DISEASE RESISTANCE OF MILLET TO DOWNY MILDEW Ⅲ DETERMINATION OF THE BROAD SPECTRUM RESISTANCE OF THE ELITE GERMPLASM TO PHYSIOLOGICAL RACES OF DOWNY MILDEW

作　　者：王雅儒[1] 曹秀菊[1] 段春兰 宋燕春[1] 褚菊征[1] 

机构地区：[1]中国农业科学院作物品种资源所

出　　处：《植物病理学报》1997年第3期263-268,共6页Acta Phytopathologica Sinica

基　　金：国家自然科学基金

摘　　要：以来自粟不同生态区（东北平原、华北平原、内蒙古高原和黄土高原）２２份优异种质进行对白发病菌〔Ｓｃｌｅｒｏｓｐｏｒａｇｒａｍｉｎｉｃｏｌａ（Ｓａｃ．）Ｓｃｈｒｏｔ．〕２０个生理小种６８个菌株抗谱的测定，同时用各生态区菌株对本区粟品种进行抗性关系的研究，其中抗５０％小种的品种有３３２、龙谷２５变、张农１２、大红袍、大同北郊、七月黄、大青苗、紫杆黄谷和西城白９个，具有广谱抗性而在本生态区亦表现抗病性强的品种有３３２、龙谷２５变、张农１２等，选出的广谱抗性品种将为粟抗白发病育种、优良品种的合理布局及抗性机理的深化研究提供了基础材料。Spectrum of resistance for 20 races from 68 strains of downy mildew Sclerospora graminicola (Sacc.) Schrt. are determined, including 22 superior varieties from different ecotypes of millet (North east China plain, North China plain, Inner Mongolia plateau, Loess plateau). Also the research for relation of resistance between every strains and millet varieties in their own ecotope has been done. There are 9 varieties which named 332, Longgu25 v, Zhangnong12, Dahongpao, Datongbeijiao, Qiyuehuang, Daqingmiao, Ziganhuanggu and Xichengbai resist 50 percent races. The varieties which have broad spectrum resistance show high resistance in its own ecotope too, such as 332, Longgu25 and Zhangnong 12 etc.. Varieties which have broad spectrum resistance are the basic materials of breeding of downy mildew resisting ,rational distribution of superior varieties and deep research of mechanism of resistance.

关 键 词：谷子 白发病 抗病性 

分 类 号：S435.15[农业科学—农业昆虫与害虫防治]