STUDY ON SOME OF UNSEXUAL PROPAGATION METHODS TO THE POSSIBILITY OF GROWTH AND DEVELOPMENT OF MESONA CHINENSIS BENTH IN NA RI DISTRICT, BAC KAN PROVINCE

Abstract

Mesona chinensis benth is a tree of high economic value; however, the investment in research on technical measures in production is limited, especially breeding techniques. Therefore, authors conducted the study of the influence of a number of unsexual propagation methods on the ability to grow and develop Mesona Chinensis Benth in Na Ri district, Bac Kan province in 2019. The experiment consists of 3 formulas ( method of propagation by root cuttings, stem segments and tops) with 3 repetitions. It shows that the technique of propagating by cuttings in the stem section has highest results: 30 days after planting, 97.33%, the number of branches reached 6.0 branches, the length of the tree reached 37.7cm, especially when propagated by stem cuttings with propagation coefficient reached 44.0 times. So this is also the formula for the highest yield of 66.0 tons/ha.