摘要
将多小穗小麦10-A与普通小穗小麦绵阳11和矮孟牛,及其杂种F1的幼穗分化特点作了系统比较分析,结果表明:10-A具有小穗分化持续期长和小穗分化速率高等两个显著特性;其中,小穗分化持续期长的特性未在杂种F1中表达,而小穗分化速率高的特性不仅能在杂种F1代中表达,且出现较强的杂种优势。
Comparision analyses for a multispikelet wheat line,10-A,two normal spikelet wheat lines MianYang 11 and Aimolu, and the F 1 hybrids between 10-A and these two normal spikelet wheat lines were carried out.The results as follows:compared with normal spikelet wheat lines,10-A had 2 special properties,long ear initiotion duration and high ear initiation rate.The property of high ear initiation rate of 10-A could be expressed in F 1 and showed very strong heterosis while the long ear initiation duration property could not be observed in F 1 hybrids.
出处
《西南农业学报》
CSCD
北大核心
1997年第3期43-47,共5页
Southwest China Journal of Agricultural Sciences
基金
国家自然科学基金
四川省应用基础项目
关键词
小麦
多小穗
穗分化
发育遗传
育种
Common wheat Multispikelet Ear initiation Dvelopmental genetics