四川省杂交稻品种及亲本抗稻瘟性鉴定

IDENTIFICATION OF RESISTANCE TO BLAST OF MAIN HYBRID RICE VARIETIES AND PARENTS IN SICHUAN

对四川省主要杂交稻品种和亲本抗稻瘟性鉴定表明，抗病恢复系有江恢１５１、成恢１４９、多恢１号和ＣＤＲ２２，保持系有地谷Ｂ和Ｋ１９Ｂ，不育系抗性较差。抗病品种（组合）有汕优１４９、８０Ａ／多恢１号、Ⅱ优８８５、冈优６１５、Ⅱ优１６２、冈优１５１、Ｋ优４０２、Ｋ优４０４、汕优多１和８０Ａ／１５１。

In 1998, blast (Pyricularia oryzae Cav) resistance of the main hybrid rice varieties and parents were identified in natural nursery of leaf and panicle blast in Sichuan province. Restorer lines, such as Jianghui 151, Chenghui 149, Duohui 1 and CDR 22 and maintain lines, such as DiguB and K 19 B were resistant to blast in the study. Tested sterile lines were susceptible to blast. Resistant to blast were hybrid rice varieties, such as Shanyou 149, 80 A/duohui1, Ⅱyou 885, Gangyou 615, Ⅱyou 162, Gangyou 151, Kyou 402, Kyou404, Shanyouduo1 and 80 A/151.