Experiment on Cuttage Propagation of Symplocos sumuntia
[Objective]In order to improve the quality of seedlings and meet the needs of resource restora-tion of Symplocos sumuntia.[Method]Using 4 cm×10 cm non-woven bag container to carry out cuttings propagation experiment,the changes of rooting index of cuttings of Symplocos sumuntia were compared between three substrates of Universal nursery medium,Huangxin soil and Honda earth and three times of cuttings in April,May and June.[Result]In April,the rooting rate of cuttings in different substrates was 93.2% in universal nursery medium,85.2% in Huangxin soil and 71.4% in Honda earth.The number of fibrous root was 9.86,9.12 and 5.44,respectively.The fibrous root length was 6.72 cm,5.94 cm,4.66 cm,respectively.The rooting rate of cuttings in the general seedling breeding medium at different times was 95.4% in April,93.8% in May and 90.2% in June.The number of fibrous roots was 10.04 in April,9.32 in May and 8.41 in June.The length of the root was 7.1 cm in April,6.6 cm in May and 6.0 cm in June.[Conclusion]Using non-woven bag as container and universal seedling breeding medium,the cuttage propagation of Symplocos sumuntia was better in late April.
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