\n\tSummary

\n\tSeason of  Cultivating Seedlings and Plant Distance Affecting the Growth and the Productivity

\n\tof Den tong Planted in Tam Dao, Vinh Phuc

\n\tDentong - Gynostemma pentaphyllum (Thunb.) Makino (Cucurbitaceae) is a precious medicinal plant growing naturally in northern high mountainous areas. The plant has been used for anti-hypercholesterolemia, anti oxidation, anti-aging, anti-hyperlipidemia, enhancing the detoxication of liver… It is in danger of  exhausted exploitation. Nowadays raw materials for drug formulation are exploited naturally in the high mountainous areas. In this work, the season of cultivating seedlings and the distance between plant to plant affecting the growth and the productivity of G.pentaphyllum were carried out.

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