Method for promoting fir root germination

Abstract

The invention discloses a method for promoting fir root germination. The method includes the first step of choosing a fir root in the due north or due south direction and vertically inserting a supporting column on the position with the horizontal distance 20 cm to 25 cm from the root, the second step of slowly bending the trunk of a fir towards the direction of the supporting column until an included angle ranging from 20 degrees to 30 degrees is formed between the trunk of the fir and the ground, the third step of tying the crossed portion between the fir and the supporting column tightly through a rope, the fourth step of winding the portion, below the crossed portion, of the trunk of the fir by one to two circles through cloth, the fifth step of enabling the fir root to be covered with nutrient soil with the thickness of one centimeter to two centimeters, and the sixth step of trimming a coppice shoot on the fir root for vegetative propagation. According to the method, high-yield and high-quality fir explants (scion wood) can be obtained, the quick and efficient vegetative propagation of excellent fir clones obtained through researching and screening can be achieved, and large-area popularization and application in production practice can be achieved.

Description

technical field

[0001] The invention belongs to the research field of Chinese fir asexual reproduction, in particular to a method for promoting the root germination of Chinese fir. Background technique

[0002] Chinese fir[ Cunninghamia lanceolata (Lamb.) Hook] is an important timber tree species endemic to my country. It has a wide range of natural distribution and has the characteristics of fast growth, strong germination, early maturity, wide application, and high yield. It occupies an extremely important position in conifer plantation. For a long time, a large area of ​​pure Chinese fir forest has been built in southern my country. With the continuous increase of its continuous planting area and algebra, the output of large-diameter timber forest is decreasing day by day, and a series of ecological problems such as forest land decline and soil poisoning are becoming more and more serious. In order to realize the ecological cultivation of fast-growing and high-yielding ...

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