冬前喷施不同化控剂对冬小麦控旺促壮的效果

Effect of Different Chemical Regulators Sprayed on Wheat before Winter on Controlling Vigorous Growth and Cultivating Strong Seedlings

以淄麦12号为材料,于冬前生长盛期喷施壮丰安和矮脚虎,研究对比其控旺促壮、防晚霜冻害效果和对产量的影响。结果表明:冬前喷施矮脚虎控制冬前旺长效果显著,可有效缩短近根叶第5、6叶的叶长,增加叶宽,延缓幼穗分化进程;冬前喷施壮丰安与喷施矮脚虎相比,虽然株高降低较少,但基部三节单位长度干重增加较多,单位面积穗数、穗粒数、千粒重增加,防冻、防倒、增产效果较好。

Zhuangfengan and Aijiaohu were sprayed on a winter wheat cultivar Zimai 12 before winter to study their effects on controlling the vigorous growth and cultivating the strong seedlings,preventing the late frost damage and yield.The results showed that the effect of Aijiaohu on controlling the vigorous growth and cultivating the strong seedlings was significant,it could efficiently reduce the length and increase the width of the 5th and 6th leaves near the root,delay the differentiation process of young ear.Zhuangfengan could decrease the plant height,but the effect was less than that of Aijiaohu.Zhuangfengan could increase the dry weight per unit of 3 basal knots,and the effect was more than that of Aijiaohu.Zhuangfengan could increase the ear number per unit area,grain number per ear and 1 000-grain weight,so it had good effects on preventing frost damage and lodging and increasing yield.