摘要
在玉米(Zea maysL)拔节前3天喷300ppm多效唑(Multi—effect triazole,MET)药液50kg/亩,可增加根层和根数,促进气生根生长;降低植株高度和穗位,茎增粗,增强抗倒伏能力,叶片变短,增宽,加厚,茎叶夹角变小,使其上部叶面积稳定期也有所延长,提高群体净同化率,增加千物质累量,加快灌浆速度,降低空杆率,提高穗粒数和粒重,使玉米增产12.27％。
300ppm Multi-effext triazole(MET) sprayed over corn (Zea Mays L.)three days before elongation stage by 50kg/mu could increse the root layer and the number of roots, and promote the growth of air roots and reduce the height of plant and earing insection. The stem was theckened, the lodging resistance increased, and the leaf blade shortened, broadened and thickened. The upper leaves erected and compacted cause from degrading of the angle between leaf and stem. The leave colour became dark green. So that the period of photosynthesis and stable leaf areas were prolonged weight of dry matter accumulated and the rate of the fillmg increased and the empty plant percentage reduced. The seed number per ear and seed weight were increased.The yield increased by 12.27％.
出处
《湖北农学院学报》
1992年第1期34-38,共5页
Journal of Hubei Agricultural College
关键词
玉米
多效唑
产量
corn
multi-effect triazole
yield
