| 楸树嫩枝扦插繁育试验 |
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| 引用本文： | 陈素传,汪小进,肖正东,孙权,肖大军.楸树嫩枝扦插繁育试验[J].安徽农业科学,2008,36(18). |
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| 作者姓名： | 陈素传 汪小进 肖正东 孙权 肖大军 |
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| 作者单位： | 安徽省林业科学研究院,安徽合肥,230031;安徽省合肥市正大果树研究所,安徽合肥,230030 |
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| 基金项目： | 国家林业局"楸树良种快繁及高效栽培技术示范"项目资助 |
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| 摘 要： | 目的]为促进楸树的开发与推广提供依据。方法]利用激素种类、扦插基质、激素浓度、处理时间4个因素进行楸树嫩枝扦插育苗试验,探讨影响楸树生根的主要因子。结果]以珍珠岩作扦插基质生根最好,生根率达17.77%;ABT1号生根粉500 mg/kg处理生根效果较佳,生根率达11.93%;处理时间以120 min为好,生根率达14.17%。扦插基质对生根的影响最大,其次是处理时间与激素浓度。3种激素各浓度处理平均生根率由高到低依次是:IBA>ABT1号生根粉>NAA,随着浓度的增加,生根率降低。ABT1号生根粉、500 mg/kgIBA处理楸树插穗2 h,生根率分别比对照增加82.6%、87.4%。结论]用珍珠岩作扦插基质,500 mg/kg ABT1号生根粉处理2 h,楸树嫩枝扦插生根效果最好,生根率达30.8%。
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| 关 键 词： | 楸树 嫩枝扦插 激素 基质 生根率 |
Primary Report on the Propagation Experiment of Catalpa bungei by Twig Cutting |
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| CHEN Su-chuan et al.Primary Report on the Propagation Experiment of Catalpa bungei by Twig Cutting[J].Journal of Anhui Agricultural Sciences,2008,36(18). |
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| Authors: | CHEN Su-chuan |
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| Abstract: | Objective] The aim was to supply foundation for promoting the exploitation and popularization of Catalpa bungei.Method] Four factors such as hormone kinds,cutting medium,hormone concn.and treatment time were used to conduct the seedling-raising experiment of C.bungei by twig cutting so as to discuss the main factors affecting its rooting.Result] With perlite as cutting medium, the rooting effect was best,with rooting rate of 17.77%.The rooting effect of treating by 500 mg/kg ABT1 rooting powder was better,with rooting rate of 11.93%.The treatment time of 120 min was good,with rooting rate of 14.17%.The effect of cutting medium on rooting was biggest and the secondary were treatment time and hormone concn.The average rooting rates of treatments of 3 hormones at various concn.in order were IBA > ABT1 rooting powder > NAA and the rooting rate reduced along with the increment of concn.Compared with CK,the rooting rates of C.bungei cuttings treated by ABT1 rooting powder and 500 mg/kg IBA for 2 h were increased 82.6% and 87.4% resp.Conclusion] With perlite as cutting medium,the rooting effect of treating tender C.bungei cutting by 500 mg/kg ABT1 rooting powder for 2 h was best,with rooting rate of 30.8%. |
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| Keywords: | Catalpa bungei Twig cutting Hormone Medium Rooting rate |
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