植物生长调节剂对油松种子萌发的影响

Influence of Plant Growth Regulator on Seed Germination of Pinus tabulaeformis

以辽宁省朝阳市的油松(Pinus tabuliformis)种子为研究对象,分别用吲哚乙酸(IAA)、赤霉素(GA3)、6-苄基腺嘌呤(6-BA)等3种植物生长调节剂进行处理,设置40、80、120、160、200、240mg·L^(-1)6个浓度,以研究植物生长调节剂对油松种子萌发的影响。结果表明:3种植物生长调节剂处理下的油松种子均能萌发,和对照相比,40~160mg·L^(-1)时3种植物生长调节剂均能起到促进作用,其中120 mg·L^(-1)IAA效果最好,发芽率最高,为78.5%;浓度高于200mg·L^(-1)的植物生长调节剂对油松种子萌发有抑制作用。

Taking Pinus tabulaeformis seeds in Chaoyang City of Liaoning Province as the research object,three kinds of plant growth regulator[indoleacetic acid(IAA),gibberellic acid(GA3),6-benzyl adenine(6-BA)]were treated,six concentration(40,80,120,160,200,240 mg·L^(-1))were set up.Result shows that the seeds of Pinus tabulaeformistreated with three kinds of plant growth regulator can all germinated;compared with contrast,while the concentration is from 40 mg·L^(-1) to 160 mg·L^(-1),three kinds of plant growth regulator can play a role among of which the effect is optimal by adopting 120 mg·L^(-1) IAA.The germination rate is highest,being 78.5%.Plant growth regulator whose concentration is higher than 200 mg·L^(-1) has inhibitory effect on seed germination of Pinus tabulaeformis.