植物生长物质对木枣树根蘖苗成活率的影响

植物生长物质萘乙酸、吲哚丁酸、生根粉对枣树根蘖苗的促控作用非常明显，其作用是通过对地上部加长生长、加粗生长和地下部根系发育的影响来实现的。三种外源激素的浓度分别为萘乙酸0．1％、吲哚丁酸0．1％、生根粉0．05％，其中尤以萘乙酸0．1％效果最好，成活率可高达71．4％。浓度过高则会抑制根蘖苗的生长，降低成活率。

Effect of Plant Growth Regulators on Survival Rate of Jujube Suckers

In this experiment, the promotion of plant exotic hormone on jujube root suckers is very obvious,this force is acting through effect of shoot elonation and didmeter and root growth. The suitable concentrates of three plant growth regulators are: methyl Q-naphthyl acetate 0. 1 %, indole butanoic acid 0. 1%, rooting powder0. 05 %. The best effect, survival rate 71. 4 %, is with 0.1% methyl a-naphthyl acetate, and higher concentrate will depress growth and development of sucker seedling and then decrease survival rate.