生长调节剂对春玉米氮素积累、转运及籽粒蛋白质含量的影响

Effects of new plant regulators on nitrogen metabolism of spring maize

为探讨生长调节剂对玉米的影响,文章通过不同生长调节剂(主要成分为羧甲基壳聚糖)处理玉米,研究了生长调节剂对春玉米功能叶片、茎杆、籽粒中氮素含量的变化。结果表明,不同配方的生长调节剂能够促进春玉米功能叶中全氮、蛋白氮的转运;提高春玉米茎秆中氮素的转运量以及玉米的产量;加速籽粒中蛋白质的积累,从而提高玉米的品质。并以施生长调节剂配方2+吐温80(PGR2)的配方效果最好。实验中应用的生长调节剂是一种有效的促进玉米氮白质积累的生长调节剂。

The experiment was conducted to study on the effects of various formulae of new plant growth regulators （PGR） on nitrogen metabolism,grain protein content and grain protein yield of maize,the results showed when spared PGR the content of total N,protein N,autumn maize yield and protein yield of maize could be increased. The transferring rate of total N and protein N in the functional leaves and stems could be promoted after PGR were spared. The optimal formula was PGR2.