摘要
通过对来自贵州省79个县(市)4000余份地方品种抗两病性鉴定研究获得如下结果:1.贵州地方稻种资源幂、粳亚种,粘、糯稻,水、陆稻等各种类型均蕴藏着相当数量的抗稻瘟病种质和抗白叶枯病种质.2.抗稻瘟病种质集中分布在黔中和黔西南部,以中高海拔1801～1400m区域为最多,占 55.4%.抗白叶枯病种质分布形成了四个主要集带,以低海拔1800m以下区域为最多,占54.4%.反映了生态与品种抗性的形成有密切关系.3.筛选出绥阳粘、铁杆谷、二毛米、早粘谷、红壳红米、烂杆麻(1)、黑米、撒金米、大麻粘等9个双抗品种,可作为抗源亲本供育种选用.
Resistance to rice blast and rice bacterial blight of about 4000 traditional rice varieties from 79 counties (towns) in Guizhou was evaluated in accordance with Chinese scale 0-9. The resultas fo-llowst
A large number of varieties in all kinds of Guizhou indigenous rice germplasm-indica and japa-nica, zhan rice and glutinous rice, paddy-rice and upland-rice,possessing resitance to rice blast and rice bacterial blight.Resistant germplasm to rice blast distributed mainly over the central and southwest area in Guizhou and the 55.4 percent existed above sea-level 801-1400m . There were 4 mass-belts where distributed resistant germplasm to rice bacterial blight,and the 54.4 percent existed over below sea-level 800m.It shows that varietal resistance to disease is connected with ecology.Nine dou-ble-resistant varieties-Suiyangzhan, Tiegangu Ermaomi, Zaozhangu, Hongkehongmi, Langanma (1), Heimi, Sajinmi, Damazhan were screened. They could be used as the resistant parent in breeding.
出处
《西南农业学报》
CSCD
1991年第2期71-76,共6页
Southwest China Journal of Agricultural Sciences
基金
国家"七五"攻关课题
关键词
水稻
稻瘟病
白叶枯病
抗性
品种
Rice, Blast, Bacterial blight, Resistant identification Guizhou indigenous varieties.
