摘要
在冷凉地区进行的杂交中稻应用赤霉素(九二0)效果研究证明:于杂交中稻始穗期喷施九二0,能使产量提高8、4％～11.2％,差异达极显著水平,产量提高主要是因赤霉素使杂交中稻的齐穗期缩短、叶片功能期延长。
The experiment carried out in cool area shows that it has significant effect of yield—increase 8.4％～11.2％ to apply gibberellin to hybrid rice when ear just sprouting. The maiia cause of yield—increase is that gibberellin can shorten tte ear sprouting period, lengthen the function of leaves, and lead to higher rate of grains per ear.
关键词
中稻
杂交稻
赤霉素
gibberellin
cool area
hybrid rice.
