植物生长调节剂对马铃薯脱毒扦插苗生长的影响

Effects of Plant Growth Regulator on the Growth of Virus-free Potato Cutting

为了研究植物生长调节剂对马铃薯薯苗生长及产量的影响。在日光温室中用多效唑、矮壮素、膨大素喷施马铃薯脱毒苗,测量株高,收获计产。3种植物生长调节剂都能在一定程度上控制植株徒长。矮壮素能增加3.0 g以上的薯块结薯量,膨大素、多效唑对增加1.0-3.0 g和0.5-1.0 g的薯块结薯数有明显的促进作用。喷洒植物生长调节剂的处理平均产量均与对照差异极显著,相互之间差异不显著,以多效唑居第一。3种植物生长调节剂都能控制植株徒长,增加结薯数,提高产量,以多效唑的效果最佳。

The research aimed to study the effects of plant growth regulator on the seedling growth and yield of potato. In sunlight greenhouse, virus-free potato seedlings were sprayed with paclobutrazol, ehlormequat and expansin, the plant height was measured and the yield was calculated after harvest. 3 kinds of plant growth regulators all could control plant overgrowing, increase tubefization number and enhance the yield, with the effect of paclobutrazol being best.