不同植物生长调节剂对甜瓜双头苗的影响

Effect of Different Plant Growth Regulators on Melon Biceps

以薄皮甜瓜品种“景甜5号”为试验材料,在6个处理(NAA 10^(-7)g/kg,GA_(3)0.2 g/kg,BR 3×10^(-5)mL/L,BH 0.1 g/kg,CK_(1)5×10^(-6)mL/L乙醇,CK_(2)清水)下,配合不同生理苗龄进行打顶处理促生双头生长,对甜瓜嫁接双头苗生理苗期的双头生长速度以及均匀度进行检测,研究植物生长调节剂对甜瓜双头苗生长速度与双头均匀度的影响。结果表明,甜瓜嫁接双头苗最适打顶时期为四叶一心;4种植物生长调节剂均对甜瓜嫁接双头苗生长具有促进作用,能够促进腋芽萌发,促进双头生长,其中以均匀双头为栽培目的所选用的最适植物生长调节剂为BH。

The thin skinned muskmelon variety Jingtian 5 was used as the test material.Under six treatments(NAA 10^(-7) g/kg,GA_(3)0.2 g/kg,BR_(3)×10^(-5) mL/L,BH 0.1 g/kg,CK_(1)5×10^(-6) mL/L alcohol,CK_(2) clear water),in combination with different physiological seedling ages,topping treatment was conducted to promote the growth of two headed melon seedlings,and the growth speed and evenness of two headed melon seedlings at the physiological seedling stage were detected,in order to explore the effects of plant growth regulators on the growth speed and evenness of two headed melon seedlings.The results showed that the optimum topping time of double headed muskmelon seedlings was four leaves and one heart.The four plant growth regulators could promote the growth of grafted double headed seedlings of muskmelon,promote the germination of axillary buds,and promote the growth of double headed seedlings.Among them,BH was the most suitable plant growth regulator for the purpose of even double headed cultivation.