不同处理对润楠扦插生根的影响  

Effect of different treatments on cuttage rooting of Machilus nanmu

作　　者：崔玉婷 吴亚 程显斌 辜云杰[1] 晏奎 CUI Yuting;WU Ya;CHENG Xianbin;GU Yunjie;YAN Kui(Sichuan Academy of Forestry,Chengdu 610081,China;Butuo Forestry and Grass Bureau,Butuo 616350,China)

机构地区：[1]四川省林业科学研究院,四川成都610081 [2]布拖县林业和草原局,四川布拖616350

出　　处：《四川林业科技》2023年第5期134-138,共5页Journal of Sichuan Forestry Science and Technology

基　　金：四川省基本科研业务费项目“润楠资源收集及苗木繁殖”(2022CZZX04)。

摘　　要：本试验采用正交试验分析了穗条类型、基质种类和激素浓度3个因素对润楠扦插生根的影响。通过方差分析和均值比较,筛选出润楠扦插的最适组合,以期为润楠大规模扩繁提供理论依据。结果表明:穗条类型、激素浓度对润楠扦插生根率有极显著影响,对生根数量及主根长度影响不显著;基质种类对扦插生根率和主根长度有极显著影响,对生根数量影响不显著。通过进一步筛选得出,以珍珠岩:蛭石=1:4的嫩枝在ABT浓度为100 mg·L^(−1)溶液中浸泡2 h的生根率最高;在保证生根率较高的同时,以蛭石的嫩枝在ABT浓度为100 mg·L^(−1)溶液中浸泡2 h的主根长度最大,生根效果理想。In this experiment,the effects of spike type,substrate type and hormone concentration on the cuttage propagation of Machilus nanmu were analyzed by orthogonal experiment.Through variance analysis and mean value comparison,the optimum cutting combination of Machilus nanmu was screened out in order to provide a theoretical basis for the large-scale propagation of Machilus nanmu.The results indicated that panicle type and hormone concentration had significant effects on rooting rate of Machilus nanmu cutting,but had no significant effects rooting number and the length of taproots.The substrate types had significant effects on rooting rate and length of taproots,but had no significant effects on rooting number.Through further screening,it was found that the rooting rate of the shoots with perlite:vermiculite=1:4 was the highest when soaked in ABT concentration of 100 mg·L^(−1)solution for 2 h.When the rooting rate was high,the taproot length was the longest when the twigs of vermiculite were soaked in the ABT concentration of 100 mg·L^(−1)solution for 2 h,and the rooting effect was ideal.

关 键 词：润楠扦插 穗条类型 基质种类 激素浓度 生根率 

分 类 号：S792.24[农业科学—林木遗传育种]