Chimonanthus praecox twig grafting method

A technology of wintersweet and twigs, which is applied in the field of forest tree propagation, can solve the problems of rootstock dehydration and death, low seedling preservation rate, and wind-break death of seedlings, etc., and achieves the advantages of grafting survival, improved preservation rate, and high wind resistance Effect

Pending Publication Date: 2019-11-29
河南省林业科学研究院
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  • Claims
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Problems solved by technology

Both splitting and cutting need to cut the rootstock first, which destroys more tissues of the rootstock, which is not good for the survival of the graft; therefore, the traditio

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  • Chimonanthus praecox twig grafting method
  • Chimonanthus praecox twig grafting method
  • Chimonanthus praecox twig grafting method

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[0017] In order to make the object, technical solution and advantages of the present invention clearer, the following examples further describe the present invention in detail. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] The wintersweet twig grafting method of the present invention is tested in Yanling County, Xuchang City, Henan Province. In summer, the temperature is 20-32 degrees in June, 25-37 degrees in July, and 30-39 degrees in August. The planting area of ​​the present invention is 0.5 mu, and 500 grafted plants were grafted in June respectively. In the method for grafting wintersweet twigs of the present invention, the limitation of seasons is for more clearly showing the growth environment of wintersweet, but the same climatic environment as the limitation of seasons is still within the protection scope of the present invention. The tree species havi...

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Abstract

The invention provides a chimonanthus praecox twig grafting method. The chimonanthus praecox twig grafting method comprises the steps that in June to August in summer, a to-be-improved chimonanthus praecox seedling is selected as a stock, and a semiligneous twig of chimonanthus praecox of an excellent variety is selected as a scion; during grafting, the scion is cut into a stem segment with the length of 8-14 cm, annual or current-year twigs on the scion and the stock are cut to form sections with the length of 5-10 cm and the width of 0.5 cm, the sections are uniform in size, when the sections are cut, the phloem is uniformly cut away, xylem is slightly exposed, and the phloem of the two sections is aligned, then tightly attached, and tightly wrapped with plastic cloth from bottom to top,wherein when the scion is a top shoot, the top is exposed 3-4 cm; when the scion is a middle stem segment, 1-2 opposite buds on the upper portion of the scion are exposed. The method is used for improving a grafting high and changing head variety in summer. According to the chimonanthus praecox twig grafting method, the semiligneous twigs generated in the cutting-back process in summer are utilized, the healing surface of the stock and the scion is large, the wind-breakage resistance is high, and the chimonanthus praecox grafting survival rate and preservation rate are greatly improved.

Description

technical field [0001] The invention relates to the field of tree propagation, in particular to a method for grafting wintersweet twigs. Background technique [0002] Common methods of propagation of wintersweet are grafting and branching. For ramet propagation, a mother tree can only be divided into 2-3 daughter plants, which takes two to three years to complete. The reproduction cycle is long and the reproduction coefficient is low. Grafting propagation is divided into branch grafting and bud grafting. In the practice of wintersweet production, the grafting method is more common. [0003] In traditional grafting, the grafting time is spring, the rootstock is 1-year-old or perennial wintersweet seedlings, and the scion is 1-year-old fully lignified wintersweet hard branches. The grafting methods mostly use splitting and cutting. The grafting time of hard branches can only be around March in spring, and only about one month for grafting. It is difficult to survive too earl...

Claims

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Application Information

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IPC IPC(8): A01G2/30
CPCA01G2/30
Inventor 沈植国丁鑫孙萌王志刚程建明沈希辉韩健武方方郭巍
Owner 河南省林业科学研究院
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