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.
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