烯效唑浸种对玉米苗期形态的调控效应

研究了烯效唑浸种对玉米苗期形态特征的影响。结果表明：烯效唑对叶片和叶鞘的伸长生长有明显的抑制作用，且抑制效应随浓度的增大而增强；烯效唑处理的植株粗壮，叶片厚度、叶宽和茎基宽增加，根数增多，根长显著高于对照，根干重增加，根冠比和苗粗壮度提高，表现出显著的壮苗长相，浓度间以40mg.kg-1效果最好。

Effects of Soaking Seed with Uniconazole on Maize Morphology

The effects of soaked seeds with different concentrations on the growth of maize seedlings were studied. The results were showed as follows. The elongation of leaf blades and leaf sheaths of the treated plants was inhibited at 3~7-leaf stage, and the higher of the concentration, the stronger of the effect. At the same time, as compared to the control, the plant in uniconazole-treatment showed an appearance of high quality plant with increased specific leaf weight, leaf width and stem thickness as well as root number and root length, the root dry weight, and 40mg.kg-1 was the best.