提高洋葱生根率的探究

A Study on Optimum Conditions for Increasing Rooting Rate of Allium Cepa

以当年采收的洋葱为试验材料,采用3种植物生长调节剂(吲哚乙酸(IAA),6-苄氨基腺嘌呤(6-BA),萘乙酸(NAA))、植物生长调节剂处理时间和培养温度3个因素设计三因素三水平正交试验,分别在水和沙两种基质中进行培养。结果表明:1以水为培养基质进行培养时,最佳生根方法是用150 mg/L植物生长调节剂6-BA处理5 min,室温下培养;2以沙为培养基质进行培养时,最佳生根方法是用100 mg/L植物生长调节剂NAA处理10 min,室温下培养;3洋葱的生根数量在水和沙这两种培养基质中没有显著性差异。洋葱生根培养在室温条件即可;沙和水这两种培养基质对洋葱生根的培养各有优点;IAA、NAA和6-BA对提高洋葱生根没有显著的影响。

In order to study to improve the onion rooting rate,this topic took harvested onions as test material.Three factors were taken：three kinds of plant growth regulator i.e.,indoleacetic acid （IAA）,6-benzyl adenine amino group （6-BA）,naphthylacetic acid （NAA）） ; plant growth regulator treatment time and incubation temperature.The study was completed by using orthogonal experimental design.The onion was cultured in water and sand,respectively.The results showed that：（1） It was found that the optimum conditions is rooting rate of Allium cepa in water is 6-BA for 5 min at room temperature; （2） The optimum conditions is rooting rate ofAllium cepa in sand is NAA for 10 min at room temperature ; （3） Results showed that there is no significant difference of the number of rooting of Allium cepa in water and sand.Conclusions are that onion can root in room temperature condition.IAA、NAA and 6-BA are no significant differences in onion rooting.