Research on Seedling-raising Techniques of Different Pedigree Alnus nepalensis D.Don in Climatic Transition Zone Puwen

[Objective] The aim was to provide a reliable theoretical basis for the cultivate drought melon seedlings.[Method] Selecting Puwen Town,Jinghong City which was subtropical and tropical interchange with climate type rich diversity as the experimental field,the artificial seedling cultivation on 15 provenances collected 93 pedigrees of Alnus nepalensis D.Don was conducted.[Result] The experiment result showed that,the 1 000-grain weight,larger seedling growth of the subtropical species source collecting seeds were better;and the tropical provenances collected seeds were small weight,with seedling growth relatively slow.[Conclusion] The result of the research could provide the scientific and effective basis for variety selection,seedling cultivation,developing the fast-growing and high-yield plantations.

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