Artificial breeding technique of Schisandra chinensis

The special medical and health care effect of Schisandra chinensis is more and more favored by people. However, the breeding and breeding of Schisandra chinensis is a difficult problem. The improved variety breeding base of Schisandra chinensis in Kuandian County, Liaoning Province has cultivated excellent new varieties of Schisandra chinensis by using wild Schisandra chinensis. The method is as follows:

First of all, the wild Schisandra chinensis was optimized, purified and domesticated according to the law of "offspring over-kinship" among excellent varieties (lines) of grape, pear and other fruit trees.

The main method is to select a piece of wild Schisandra chinensis on the mountain, and when the fruit is ripe, the plants with long, neat, large, compact, uniform and good comprehensive characters are selected as breeding parents, while all other inferior plants are eradicated. In the flowering period of the next year, the retained parent trees were pollinated by cross-pollination and cross-pollination, and excellent seeds were selected.

The second step is to cultivate seedlings from the seeds obtained in the open air and then plant them directly in the flat ground, and then cultivate and domesticate them in the open air under the condition of full light to make them gradually adapt to the high temperature and drought environment. After the tree bears fruit, its seeds are collected and used in the new commercial garden in a large area. The excellent varieties cultivated by this method have significantly enhanced stress resistance, did not wilt even in high temperature and drought weather, and grew as usual without rain for half a month.

Third, pay attention to pruning. The trunk was cut off at the low position while the seedlings were planted, so as to force the seedlings to sprout 4 main vines from the base as soon as possible. Since then, in line with the principle of "long release" and "short cut", cut as lightly as possible, so that the branches are quickly covered with the shelf surface, expand the fruiting branch group, and reduce the fruiting part.

In addition to the above three key measures, some auxiliary measures have been taken, such as proper close planting, tree plate covering grass, boron application at flowering stage, artificial pollination and so on. It is estimated that the yield per mu of 5-year-old orchard is 225 kg, and that of 6-7-year-old orchard is stable at 240 kg, which is 4 times higher than that of the wild variety 3mi.