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以北京植物园引种的针叶树刺柏‘金岸’(Juniperus media‘Gold Coast’)新品种为材料,研究了不同扦插基质及生长调节剂对插穗生根数量及质量的影响。研究结果表明:基质和促根剂均显著影响‘金岸’刺柏扦插生根效果,在珍珠岩和蛭石(1.5∶1)基质条件下,结合插穗速蘸促根剂处理,有利于不定根的形成与伸长,在以沙为基质的条件下,结合插穗浸泡促根剂处理,利于扦插生根。其中,以在在以沙基质条件下,结合插穗浸泡于200mg/kg浓度的ABT1号生根粉溶液4h处理,扦插生根率及生根质量最佳。
Taking Juniperus media’Gold Coast ’introduced from Beijing Botanic Garden as material, the effects of different cutting media and growth regulators on rooting quantity and quality of cuttings were studied. The results showed that both substrate and root enhancer significantly affected the rooting effect of ’Jin’an’ Juniper cutting. Under the substrate of perlite and vermiculite (1.5:1) Formation and elongation, in the sand as the substrate conditions, combined with cuttings soaking root promotion agent processing, which will help cutting rooting. Among them, rooting rate and rooting quality were the best when treated with ABT1 rooting powder solution immersed in a concentration of 200mg / kg for 4h under sand substrate conditions.