NAA对栀子组织培养繁殖效应的研究

Effects of NAA on propagation of cape-jasmine in vitro

不同浓度的NAA对桅子增殖效应的研究表明，在BS培养基上，0．1～0．8mg／L的NAA对一级侧生根的产生均有促进作用，但二级侧生根的数量以0、2mg/L处理最高，达3．36根/株，均显著地高于其它处理和对照。当NAA浓度在0．4mg／L以上时，根系基部易产生大量的愈伤组织。NAA02mg／L也是促进试管苗基段生长的最适浓度，培养35天后，茎长达6．64cm，显著地高于其它处理。

NAA was added in the B5-medium in propagation of cape-jasmine in vitro. Theresults showed that NAA had promoted rooting at concentrations from 0. 1mg/L to 0.8 mg/L, andNAA at 0.2 mg/L was the best concentration for the growth of shoot and root. A single budcutting could form a plant about 6.67 cm length with 5 roots after 35 day's culture.