摘要
对陕西省1152份玉米农家种进行丝黑穗病抗源筛选、鉴定结果,HR占6.1%,MR占66.8%,S占25%。重复鉴定2～4次的稳定抗源18个。杂交试验显示,F_1发病率介于双亲,高于双亲和低于双亲的分别占60.0%、26.7%和13.3%,以Mo17为亲本的F_1表现抗病,以辽1311×变755的F_1发病率21.8%。
1152 farmer cron varieties of shaanxi Province were identified and selected. The results showed as follows: HR 6.7% of them, MR66.8% of, S 25% of, HS 2% of. There were 18 stable resistance resouce in them by 2～4 times identified. The results of intercross showed that disease incidence of F_1 Oppeared 60.0% of between both parents, 26.7% of over the parents and 13.3% of beneath the par ent. Offspring F_1 Which one of parents was Mo17 presents resistanse, and F_1 of Liao 1311×Bian 755 presents 21.8% of disease incidence.
出处
《西北农业学报》
CAS
CSCD
1992年第4期83-86,共4页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
玉米
丝黑穗病
鉴定
抗原
Corn
Head smut
Resistance resouse
