Grafting method for Carya illinmoensis

Abstract

The invention discloses a hickory grafting method, which uses American thin-shelled hickory as a rootstock, adopts a cutting grafting method, the scion length is 5cm-6cm, and there is one strong bud, and the ear stem of 1-1.5cm is reserved at the upper end of the bud. Ear cutting and anvil cutting should be accurate and fast, the cutting surface should be smooth, and the bud body should not be damaged when cutting the ear, and should be tightly bound with a film in time, especially the upper end of the scion should be tightly wrapped so that only the bud body is exposed; Lightly cut a long straight face to increase the contact surface between the scion and the rootstock. The rootstock selected by the present invention has strong growth potential, well-developed root system, strong adaptability, small pith core, and strong affinity with hickory nuts. The rate, seedling rate and growth potential make the pecan grafting survival rate reach more than 95%, and the seedling rate reach more than 90%.

Description

technical field [0001] The invention relates to the technical field of fruit tree grafting, in particular to a hickory grafting method. Background technique [0002] Hickory nut (Caryacathayensis Sarg.) belongs to the Juglandaceae Hickory plant. It is a precious nut and woody oil tree species unique to my country. It is mainly distributed in Lin'an City in Zhejiang Province, Ningguo City and Jixi County in Anhui Province. Due to high tannin content, large pith and thin cambium, the grafting survival rate of hickory nuts using this stock and general grafting techniques is low, and the growth potential of grafted seedlings is weak at the later stage. It takes about 10 years to bear fruit, and 15 to 20 years to enter the peak production period, so that the hickory yield cannot be greatly improved in the short term. Inconsistent with the high-yield performance, the degeneration of the original excellent species of hickory is more prominent. The use of seedlings to build orchard...

AI Technical Summary

Problems solved by technology

Due to high tannin content, large pith and thin cambium, the grafting survival rate of hickory nuts using this stock and general grafting techniques is low, and the growth potential of grafted seedlings is weak at the later stage. It takes about 10 years to bear fruit, and 15 to 20 years to enter the peak production period, so that the hickory yield cannot be greatly improved in the short term. Inconsistent with the high-yield performance, the degeneration of the original fine species of hickory is more prominent, and the use of seedlings to build orchards cannot form high-quality and high-yield orchards, and high-quality grafted seedlings are urgently needed in production