CORRELATION OF GROWTH AND DEVELOPMENT OF NGOC LINH GINSENG WITH ECOLOGICAL FACTORS OF HON BA NATURE CONSERVATION AREA, KHANH HOA PROVINCE

Abstract

Correlation of growth and development of Ngoc Linh Ginseng with ecological factors of Hon Ba Nature Conservation area, Khanh Hoa was determined by multivariate Canonical Correspondence Analysis – CCA. Research results show that, 9/12 Growth and development indicators include: Plants regrow after hibernation, germination rate, leaf morphology, rearing set, plant height, canopy diameter, length of root, The rate of flowering trees, The rate of trees forming fruit of 2-year-old Ngoc Linh ginseng has a close relationship with 7 ecological factors such as: canopy cover, forest type, cover, middle layer, degree Thickness of leaf cover, grade composition, easy potassium standard of Hon Ba Nature Conservation area with tree confidence over 95%. In which, the indicator of tree height and flowering rate are very closely correlated with ecological factors, canopy, and tree cover with 100% confidence. 2/12 growth and development indicators including: survival rate and tuber weight have a close correlation with 4 ecological factors such as: total annual average rainfall, agaric stratum, and phosphorus easily digestible with a confidence level of over 95% and all have a very close correlation with the annual average total rainfall. Growth criteria Hibernation plants have a very close correlation with high ecological factors with a confidence level of over 95%. This research result provides scientific data for the replication of Ngoc Linh Ginseng growing model in Hon Ba Nature Conservation area and other areas with similar ecological conditions.