摘要
以顶端败育类型（3631）和非败育类型（0425）杂交种为材料，对其籽粒发育过程中乙烯释放量变化进行比较研究，结果表明，败育类型玉米果穗上部籽粒在授粉后0～8d阶段，发育状况中部优于基部、更优于顶部，而乙烯释放量则表现出顶部＞基部＞中部。采取乙烯处理进行籽粒离体培养也证明乙烯不利于籽粒发育，是引起籽粒败育的一个重要因素。
Comparative study have conducted by using two hybrids with or without kernel abortion in the field condition. Ethylene released by the kernel in the process of development was measured. The results indicated that the kernels on the ear top of the hybrid with high kernel abortion developed slowly during 0~8 d post-anthesis, and the amount of ethylene released is high; the state of kernel development in the same ear is as follow:the middle kernel is better than basal kernel, and the basal kernel is better than top kernel. The amount of ethylene released by the kernel at different position is as follow: top＞basal＞middle. In vitro cultural experiment treated with ethylene indicated that kernel development is affected by ethylene. Ethylene may play an important role in the kernel abortion.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1997年第3期85-89,共5页
Journal of China Agricultural University
基金
国家攀登计划资助
北京市自然科学基金
关键词
玉米
籽粒发育
败育
乙烯
Maize
kernel development
abortion
ethylene
