不同基质配比对河桦“热杜拉”扦插生根的影响

Effects of Different Substrate Rations on Rooting of Betula nigra“redula”Cuttings

[目的]筛选适合河桦“热杜拉”扦插基质配方。[方法]选用泥炭、珍珠岩和椰糠作为基质,按不同比例混合,研究不同配比对河桦插条生根率、生根数、总根长及平均根长的影响。[结果]不同基质配比对插条生根率、生根数、根总长及平均根长的影响存在显著差异,50%泥炭+20%珍珠岩+30%椰糠配比插条生根率为85.07%,生根数为8.14条,插条根总长为15.99 cm,平均根长为2.01 cm。[结论]50%泥炭+20%珍珠岩+30%椰糠配比可作为河桦“热杜拉”扦插基质。

[Objective]To screen the suitable substrate formulas for cutting.[Method]The effects of different substrate rations of peat,perlite and coconut chaff on the rooting rate,rooting number,total rooting length,and average rooting length of the cuttings of Betula nigra“redula”were studied.[Result]The results showed that the effects of different substrate rations on the rooting rate,rooting number,total rooting length,and average rooting length of the cuttings were different significantly.The rooting rate,rooting number,total rooting length,and average rooting length of the cuttings were 85.07%,8.14 roots,15.99 cm and 2.01 cm respectively treated as substrate ration 50% peat,20% perlite and 30% coconut chaff.[Conclusion]Mixed substrate of 50% peat,20% perlite and 30% coconut chaff can be used as the suitable substrate formula for cuttings rooting of Betula nigra“redula”.