不同激素组合处理对金叶白蜡嫩枝扦插生根的影响

Rooting Response of Fraxinus Linrt Softwood Cutting to Different Hormone Combinations

[目的]为金叶白蜡嫩枝扦插繁育提供科学依据。[方法]在大棚内,用沙壤土做基质,采用正交设计法,研究IBA-K、NAA-Na、DA-6共3因素不同浓度水平处理插穗后的嫩枝扦插生根效果。[结果]IBA-K盐、NAA-Na盐、DA-6均能显著提高金叶白蜡嫩枝插穗生根率,影响作用大小依次为NAA-Na盐>IBA-K盐>DA-6,其中NAA-Na盐是影响金叶白蜡嫩枝插穗生根的主要因子。[结论]试验3组合A1×B3×C3能够极显著提高金叶白蜡嫩枝插穗生根率,其平均生根率达到84.3%,是金叶白蜡嫩枝插穗生根最佳激素水平组合。

[Objective] It provided the scientific basis for Fraxinus linrt softwood cutting.[Method]Three kinds of hormones of IBA-K,NAA-Na and DA-6 were used in different concentrations and combinations for the study.[Result] Three kinds of hormones of IBA-K,NAA-Na and DA-6 have significant differences on promoting rooting rate.The experimental results showed that the order of their efficiencies was NAA-Na ＞ IBA-K ＞ DA-6.NAA-Na was the major factor.[Conclusion] The highest rooting rate of 84.3％ was achieved from the best combination of A1 B3 C3.