Water catalpa branch grafting method

Abstract

The invention discloses a water catalpa branch grafting method which comprises the following steps: after stumping a white wax stock 15-20cm away from the ground, cutting one side part of a wood section to expose a cambium; cutting and digging the inner side of the cambium with a little xylem to form an inverted triangular cut with the depth of 2-3cm; taking a to-be-grafted annual water catalpa branch, inwards cutting along one side without a bud, and cutting off part of xylem to form a triangular cutting surface matched with the notch; the cutting face of the scion is placed in a mixed solution containing 6-benzylamino adenine and a fructus psoraleae seed extract to be rapidly dipped and then inserted into a notch of the paraffin stock, the scion and the stock are tightly attached without gaps, the upper end of the cutting face of the scion needs to be exposed by 0.2 cm, and then the scion and the stock are bound from bottom to top, so that the grafting part cannot be exposed. According to the method, the grafting survival rate reaches 98% or above, the growth amount of annual grafted seedlings can reach 65 cm or above, the seedlings grow fast, the quality is good, the breeding speed is high, and the seedling raising period is short.

Description

Technical field [0001] The present invention relates to the field of plant cultivation, specifically to a method of grafting of catalpa grafting. Background [0002] It is a deciduous large tree of the genus Xyrrhiceros, a national grade II endangered tree species, with excellent material, fine texture, more resistant to corrosion and water wetness, great toughness, and widely used in indoor decoration, machinery manufacturing, shipbuilding, vehicles, furniture, inlaid wood flooring, etc., with high ecological and economic value. [0003] It has been cultivated in the Xiaolongshan forest area for more than 60 years, and has been built as the main tree species for broad-leaved tree afforestation, but so far the preservation area is small and the preservation rate is low. In the production, the mixed harvesting of species, especially the dwarf and inferior strains are easy to collect seeds, the breeding opportunities are artificially increased, coupled with the degradation of the r...

AI Technical Summary

Problems solved by technology

[0003] Water catalpa has been cultivated in the Xiaolongshan forest area for more than 60 years. It was once used as the main tree species of broad-leaved trees for afforestation on a large scale, but so far the preserved area is small and the preservation rate is low.

Mixed harvesting and multiplication of seeds and seeds in production, especially short and inferior plants are easy to collect seeds, and the reproductive opportunities are artificially increased. In addition, the variation and degeneration of seeded offspring lead to uneven forest trees, inferior species tend to be more, forests are uneven, population degradation, and their own production potential is not enough. can be played