重庆地区马尾松嫩枝扦插技术研究
Greenwood Cuttage Technique of Pinus massoniana in Chongqing,China
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摘要: 研究了生长调节荆的种类和浓度、基质、插条长度、顶芽有无等因素对马尾松嫩枝扦插插条生根率的影响.实验表明:[1]生长调节剂种类和浓度均极显著地影响马尾松插条生根率,且二者对马尾松插条的生根率存在显著的交互影响.采用IBA和GGR处理的插务生根率显著高于采用NAA和IBA+NAA处理的插条.[2]不同长度的插条之间生根率极显著不同,且插条长度与基质之间不存在显著的交互影响,不管在何种基质内均以5～10 cm长度的插条为最优.[3]采用不同基质扦插的插条生根率极显著地不同.[4]带顶芽的插条生根率极显著大于不带顶芽的插条.Abstract: Effects of medium,kind and concentration of growth regulators.cutting length and apical bud on cutting rooting percentage of greenwood cuttings of Pinus massoniana were studied.Kinds and concentrations of growth regulators and their interaction were shown to have highly significant effects on the rooting of the cuttings.Rooting percentage of cuttings dipped in IBA and GGR was significantly higher than that of cuttings dipped in NAA and IBA+NAA.Rooting percentage of cuttings with different lengths differed highly significantly and the interaction of cutting length with medium was non-significant statistically.Cuttings 5-10 cm long had the highest rooting percentage regardless of medium.Rooting percentages of cuttings in different media were significantly different.Rooting percentage of cuttings with the apical bud was highly significantly higher than that of cuttings without the apical bud.
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