Study on Cutting Propagation Techniques of Polygonum multiflorum
Abstract:Objective:To select the optimum breeding method for Polygonum multiflorum,improve the survival rate during breeding and provide a basis for standardized planting of P.multiflorum.Methods:Two different parts,old and young of P.multiflorum from genuine producing area were collected to be used for two different breeding methods,vertical and horizontal cutting,and two treatment methods,yellow mud and raw powder to explore the effects of different breeding methods on the seedling rate and quality of P.multiflorum.Results:Different breeding methods,breeding materials and treatment methods had an effect on the seedling rate of P.multiflorum.The survival rate of vertical cutting was higher than that of horizontal cutting when the cuttings were not treated,but the survival rate of soft branch cuttings on horizontal cutting was higher than vertical cutting;the survival rate of hard branch cutting was higher than soft branch;the survival rate under different cutting methods was:Yellow mud treatment>treatment>root powder treatment.Different breeding methods had a certain influence on the quality of P.multiflorum seedling.Conclusion:In the actual production,vertical cutting method can be adopted,the use of hard branch cuttings and treatment with yellow mud can improve the survival rate of P.multiflorum and ensure the quality of seedlings is stable.