The Introduction And Research On Cutting Techniques Of American Lagerstroemia

Lythraceae lagerstroemia for the plant,with high ornamental value. Compared with other countries, the research of lagerstroemia is less and started later in China. In recent years, the American Academy lagerstroemia introduced by Hunan Academy of Forestry exhibit excellent value in Jiangsu, Zhejiang and Huan. This study on the introduction in the United States Myrtle southern Jiangxi comprehensive evaluation; in addition to the United States Myrtle cutting conditions were screened. The results are summarized as follows:1.Local lagerstroemia growth rate than United States lagerstroemia in the Gannan region to be fast, but far less than the United States Myrtle ornamental value, mainly in the United States crape myrtle flowers large, brightly colored, long flowering, compact tree,crape myrtle and the United States in the fall leaf color conversion is also a good landscape three kinds between the United States crape myrtle, red rocket and fire ball phenophase earlier, the two are both red color, a large amount of flowers, flowering saw flowers gone leaves, red banaba landscape effects by 2 different, the tree is also compact, color purple,flowers are also high, leaf leaves red, ripe dark green leave with purple thread some ribbon,ornamental value is relatively high.2.Anthocyanins, carotenoids, chlorophyll, the pigment and the proportion of three kinds of leaf color rendering of a direct relationship between an increase in the proportion of anthocyanin, chlorophyll reduction in the proportion of the blade is red, and the degree of change and leaf red the depth of a positive correlation, where the most dramatic changea in banaba red.3.Selective cutting on the season, compared with the autumn, spring shoots rooting relatively high; local lagerstroemia more than 3 kinds U.S. easily survived cuttings, cutting survival rate of a great relationship between the species.