Research on the suitable vegetative reproduction method for Potentilla reptans var. sericophylla

Potentilla reptans var. sericophylla has good ecological adaptability, can be wildly used as cover plant. But the current planting method can not meet the needs of field production, new planting method research is imminent. The research of suitable vegetative reproduction method for P. reptans var. sericophylla was accomplished in forestry college nursery of Shanxi agricultural university from July to October in 2014, this experiment with the P. reptans var. sericophylla which induced to nursery by predecessor as material, shearing the stem section, adopts the method of spreading stems and covering soil, the method of trenching and planting stem and the method of layering to plant, the results showed that in three different planting method, the method of spreading stems and covering soil worked best. The survival rate of this method which reproduce P. reptans var. sericophylla can reach 96%, its coverage reached 73% after 70 days, the number of ramets reached 289 per square meter and stolons reached 57 per square meter, higher biomass accumulation included biomass on the ground part 0.011 g·cm-2 and biomass under the ground part 0.004 2 g·cm-2, chlorophyll content was higher, it can reach 2.77 mg·g-1 and be widely used for field production.