摘要
在隔离区,以太谷核不育小麦和矮败小麦为供试亲本.用炔诺酮、甲地孕酮、乙烯雌酚、马来酰肼(MH)等化学药剂诱导不育株孤雌生殖。结果表明,太谷核不育小麦的诱导结实率高于矮败小麦。炔诺酮、甲地孕酮和乙烯雌酚的诱导结实率均超过马来酰肼。小穗剪颖后用药剂处理和药剂处理后穗子套袋均能提高诱导结实率。用药剂处理时间以晚上19时后效果最佳。不同供试亲本对喷药次数的反应存在差异。
The female parthenogenesis on the male-sterile plants of Taigu genic male-sterile wheat and dwarf abortion wheat were induced by norethindrone, megestrolum, diethylstilbestrol,maleic hydrazide (MH) and so on in isolation conditions. The results indicated that induced seed setting rate of Taigu genic male-sterile wheat was higher than that of dwarf abortion wheat.Norethindrone, megestrolum and diethylstilbestrol yielded higher induced seed setting rate than maleic hydrazide. The chemical treatment after glume-cutting could help to raise the induced seed-setting rate, so did bagging after chemical treatment. The suitable time for chemical treatment was 19: 00 pm. The induction effects on different materials varied with changes of the number of chemical treatments.
出处
《华北农学报》
CSCD
北大核心
1995年第1期11-16,共6页
Acta Agriculturae Boreali-Sinica
基金
河北农业技术师范学院青年自然科学基金
关键词
显性核不育
小麦
孤雌生殖
子房膨大率
结实率
Dominant genic male-sterile wheat
Female parthenogenesis
Ovary expansion ratio
Seed setting rate