摘要
花期干旱、高温是降低玉米制种结实率 ,造成花期不遇、花粉活力不强和授粉不好的主要原因 ;基地不稳定、亲本及花期管理混乱和档案不健全是造成结实率低的人为因素。
Drought and high temperature at flowering stage are the main causes for maize low seeding rate, flowering season missing,low vigor pollen and poor pollination and unstable base, mixed parents and management are artificial factors. Measurements to protect maize fron low seeding rate are proposed as well.
出处
《山西农业科学》
2002年第3期14-16,共3页
Journal of Shanxi Agricultural Sciences
关键词
玉米
制种
结实率
Maize
Seed propagation
Seeding rate
Causes
Measures
