不同基质和NAA质量浓度对药用观赏植物扦插生根的影响*

对蛇莓（Duchesnea indica）、翠云草（Selaginella uncinata）、过路黄（Lysimachia christinae）、垂盆草（Sedum sarmentosum）、活血丹（Glechoma longituba）5种药用植物进行扦插繁殖试验，研究了3种基质及NAA 激素3种质量浓度对5种植物扦插生根的影响。结果表明：蛇莓在不使用激素处理的条件下，田园土∶河沙＝1∶1的基质中生根效果最好，使用 NAA 处理后，泥炭土∶珍珠岩＝5∶1的效果最好；在100 mg／L NAA 的处理下，翠云草、过路黄在泥炭土∶珍珠岩＝5∶1的基质中，扦插生根效果最好；垂盆草在50 mg／L NAA 的处理下和田园土∶河沙＝1∶1的基质中进行扦插，其生根效果最好；活血丹在泥炭土∶珍珠岩＝5∶1和50 mg／L NAA 的条件下，生根效果最好。

Effects of Different Substrates and Hormone Concentrations on Cutting Rooting of Medicinal Plants

Effects of different substrates and different concentrations of growth hormone(NAA)on cuttings of four medicinal plants (Duchesnea indica,Selaginella uncinata,Lysimachia christinae,Sedum sarmentosum and Glechoma longituba)were studied.The optimal combination of substrates and hormone was selected.The results showed that when cultured in the mixture of rural soil and river sand(1∶1),the rooting performance of D.indica was the best without the treatment of hormone,while the best cutting medium was peat soil and perlite(5∶1 )with the treatment of NAA.Under the mixture of peat soil and perlite(5∶1)as cutting medium,NAA 100 mg/L as hormone, both S.uncinata and L.christinae had higher rooting occurrence.Under the cutting substrates of rural soil and river sand(1∶1 )and the NAA concentration was 50 mg/L,S.sarmentosum had the highest rooting rates.The highest rooting rate of G.longituba could achieve the best rooting performance with the combination of 50 mg/L hormone treatment and medium mixture of peat soil and perlite(5∶1).Above all,every plant has its best cutting conditions.We should select different combination according to the adaption of every plant.