Research objectives: Supplement and complete a biodata and production technics of a native species with high economic values; the findings of the study are references for future researches, curriculums, technical officers, advisors and students; the study is also expected to build a technical guidance for producing Phay’s seedlings contributing to development andproduction of Phay, a native large-timber species, in Bac Kan province and other provinces with similar natural conditions.
