Method for quickly establishing clonal seed orchard of Castanopsis hystrix and application of method

Abstract

The invention provides a method for quickly establishing a clonal seed orchard of Castanopsis hystrix and application of the method, and belongs to the technical field of forest tree breeding. The method for quickly establishing the clonal seed orchard of Castanopsis hystrix includes the steps: selecting forest stand, cutting stems for promoting sprouting, treating rootstocks, selecting parent materials, collecting scions, performing top grafting and carrying out later management. For the first time, Castanopsis hystrix trees of 5-10 years are adopted as rootstocks, fast-growing high-quality scions suitable for orchard construction are selected as materials in consideration of genetic distance and the ratio of male flowers to female flowers, and the excellent clonal seed orchard can be established quickly through a matched grafting technology which is obtained through careful exploration and design. The method is different from previous grafting which is based on seedlings or saplings,through the scheme, the flowering time is shortened quickly, early fruiting is promoted, and the forest can be formed quickly; and the stand viability of the seed orchard is ensured, and efficient productivity of high-quality seeds is ensured.

Description

technical field [0001] The invention belongs to the technical field of forest tree breeding, and in particular relates to a method for quickly establishing a seed orchard of red cone clones and an application thereof. Background technique [0002] Castanopsis hystrix, also known as Hongli, Chili, Limu, Castanopsis, etc., is an evergreen tree of the Fagaceae Castanopsis hystrix. It has a vigorous growth period and a good growth rate. It can be felled more than 10 times in one afforestation. As an important and precious tree species in South China, red cone has been increasingly valued. It has developed rapidly in recent years and is widely planted in Guangdong, Guangxi, Fujian, Jiangxi and other places. [0003] The demand for improved red cone seedlings in South China is increasing day by day, but the core technology of red cone asexual reproduction has not yet been broken through, and the asexual reproduction system is weak. At present, it mainly relies on seedlings for af...

AI Technical Summary

Problems solved by technology

[0003] The demand for improved red cone seedlings in South China is increasing day by day, but the core technology of red cone asexual reproduction has not yet been broken through, and the asexual reproduction system is weak. At present, it mainly relies on seedlings for afforestation, and the seed production capacity is limited, which greatly limits the long-term sustainability of the red cone industry. The steady development of

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