外引水稻品种（系）多抗性鉴定评价与利用研究

Identification and Evaluation on the Multi-resistance of Introduced Rice Varieties and its Utilization

１９７９～１９９３年鉴定了由国际水稻研究所提供的稻瘟病圃材料３４３１份，白叶枯病圃材料１３０３份，褐飞虱圃材料２０１１份，获抗稻瘟病０级４３１份。１～２级１３７份、３级１２１份；白叶枯病１级２１４份、３级２７２份、５级３０１份；褐飞虱０级２３１份、１级３７４份、３级５９７份，表现抗性强、抗谱广，可作为抗源材料利用的有抗稻瘟病品种１２份和抗白叶枯病与褐飞虱品种各８份。

and 2011 IRRI-provided varieties from International Rice Blast, Bacterial Blight and Brown Planthopper Nurseries were determined from 1979 to 1993. The results showed that, the varieties from rice blast nursery,0,1-2,3 scale occupied 437,131 and 121 respectively;from bacterial blight nursery,1,3 and 5 scale occupied 214, 372and 301 respeltively;from brown planthopper nursery occupied 231,374 and 597 respectively,In determined varieties,12 from rice blast nursery, 8 from bacterial blight nursery and S from brown planthopper nursery have relative- ly strong and wide-ranging resistance which may be considered to be used as parent materials in rice breeding.