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Walnut high-grafting and head-changing method

A high-quality, high-quality, walnut technology, applied in botanical equipment and methods, grafting, horticulture, etc., can solve the problems of the death of the whole grafted tree, the rot of the grafting interface, etc., and achieve good healing of the grafting interface and low incidence of rot disease. Effect

Pending Publication Date: 2017-08-29
SICHUAN ACAD OF FORESTRY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a method for high-quality grafting of walnuts, so as to solve the problems of severe grafting interface rot and death of the whole grafted tree in the high-temperature and high-humidity areas of southern China.

Method used

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  • Walnut high-grafting and head-changing method

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Embodiment 1

[0036] In Wangcang County, Guangyuan in the Qinba Mountains of Sichuan, Daying County in the hilly area of ​​central Sichuan, and Luding County in western Sichuan, low-yielding walnut forests were replaced with high-quality ones. Rootstocks with a diameter of 3 cm and smooth bark were sawed off and smoothed with a knife. Interface, and then cut a knife from bottom to top from the place where the scion is to be inserted, and cut off the bark of the rootstock, which is 3cm long and deep into the phloem, and cut a knife in the middle of the cut; leave 2 buds on the scion, and cut a 4cm beveled surface at the lower end , cut a knife on the left and right sides of the back of the scion, sharpen the scion, and then insert the scion so that the rootstock and the cambium of the scion are in contact. Insert the scion with 0.3cm of whiteness, which is conducive to good healing; insert the scion from the bottom edge of the phloem of the rootstock vertically downward Leave a water outlet w...

Embodiment 2

[0041] In Wangcang County, Guangyuan in the Qinba Mountains of Sichuan, Daying County in the hilly area of ​​central Sichuan, and Luding County in western Sichuan, low-yield walnut forests were replaced with high-quality ones. Rootstocks with a diameter of 5 cm and smooth bark were sawed off and smoothed with a knife. Interface, and then cut a knife from bottom to top from the place where the scion is to be inserted, and cut off the bark of the rootstock, which is 4cm long and deep into the phloem, and cut a knife in the middle of the cut; leave 3 buds on the scion, and cut a 4cm beveled surface at the lower end , cut a knife on the left and right sides of the back of the scion, sharpen the scion, and then insert the scion so that the rootstock and the cambium of the scion are in contact. Insert the scion with 0.5cm of whiteness, which is conducive to good healing; insert the scion from the bottom edge of the phloem of the rootstock vertically downward Leave a water outlet with...

Embodiment 3

[0046] In Wangcang County, Guangyuan in the Qinba Mountains of Sichuan, Daying County in the hilly area of ​​central Sichuan, and Luding County in western Sichuan, low-yielding walnut forests were replaced with high-quality ones. Rootstocks with a diameter of 4 cm and smooth bark were sawed off and smoothed with a knife. Interface, then cut a knife from bottom to top from the place where the scion is to be inserted, cut off the bark of the rootstock, 3.5cm long, deep into the phloem, and make a vertical cut in the middle of the cut; leave 3 buds on the scion, and cut a 4cm oblique at the lower end Cut the surface, cut a knife on the left and right sides of the back of the scion, sharpen the scion, and then insert the scion so that the rootstock and the cambium of the scion are in contact. Leave a water outlet with a width of 0.25 cm, a length of 2.5 cm, and a depth of xylem, and take out the bark of the water outlet to allow the wound to flow out from the opening; The wound su...

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Abstract

The invention provides a walnut high-grafting and head-changing method in south high-temperature high-humidity areas, and particularly relates to the technical field of walnut grafting. The walnut high-grafting and head-changing method includes the following steps that stocks with the diameter of 3 cm to 5 cm are selected; scions are provided; layer contacting is formed between the stocks and the scions, and the stocks and the scions are bound. According to multiple years of research, in the walnut high-grafting and head-changing method, the healing rate of grafting openings is 85.7% or above, and the grafting cost is about 20 yuan / plant averagely; formation of high-yield tree forms is early, and the high yield and the stable yield are easy to achieve; for poor-quality low yield forests of 4 years to 5 years, stocks at grafting portions of high-grafting and head-changing trees are controlled to be 3 cm to 5 cm, high-yield tree forms can be formed for 2 years to 3 years popularly, and the yield of the third year can be 1.5 kg / plant to 2 kg / plant; the stocks at the grafting portions are controlled to be 5 cm or above, the high-yield tree forms can be formed for 4 years to 5 years popularly, and the yield of the fifth year can be 1.5 kg / plant to 2 kg / plant.

Description

technical field [0001] The invention relates to the technical field of walnut grafting, in particular to a technology for controlling the size of high-quality walnut rootstocks. Background technique [0002] Walnut is the main economic forest tree species in Sichuan, with a long history of cultivation for thousands of years. Since 1999, combined with the province's first phase of forestry project construction based on returning farmland to forests, the ecological and economic value of walnuts and the role of helping farmers increase income have been unanimously recognized by the majority of mountainous people in our province. The province's walnut production has developed rapidly, and the walnut cultivation area has grown from 933,700 mu in 2000 to nearly 13.1 million mu in 2015, becoming an important walnut cultivation area in the country. [0003] With the continuous expansion of the scale of walnut production in Sichuan, problems in the development of the walnut industry...

Claims

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Application Information

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IPC IPC(8): A01G1/06
CPCA01G2/30
Inventor 李丕军张强刘华王静邢文曦杜晋城漆峥嵘闫明郑崇文黄闽敏
Owner SICHUAN ACAD OF FORESTRY
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