摘要
用同一浓度的“多效好”和不同处理方法,在玉米播种时进行播前拌种和浸种以及拔节后进行叶面喷洒,可促进玉米提早成热。主要表现在穗位叶硝酸还原酶活性提高,雄穗抽出提前,雌穗提前吐丝,从而提前授精,并改变了籽粒的灌浆强度和稳定时间,降低了秃尖度,增加了穗粒数和穗粒重。
Early maturation of maize was observed when the seeds were treated with the same concentration of“Duoxiaohao”by mixing with the seeds,soaking the seeds or spraying the leaf after seedling grew.The early maturation is characterized by the increase of nitrate reductase of spike leaf,early appearance of male spikes,early spinning of female spike, and hence early fertilization.These resulted in the change of filling intensity of the grain and steady time,the decrease of bald tip and the increase of grain/spike ratio and grain weight.
关键词
生长调节剂
玉米
产量
早熟
plant growth regulator
maize
yield
maturation promotion
“Duoxiaohao”
