Constructing method for wide-narrow row J.sigillata Dode hard-twig cion cutting orchard

Abstract

The invention discloses a constructing method for a wide-narrow row J.sigillata Dode hard-twig cion cutting orchard. The method comprises the steps of orchard construction location selection, cutting orchard layout and land preparation, field planting of grafted seedlings, management in the same year after field planting and cutting orchard management. An area which has a year-round average temperature of 13-18 DEG C, year-round sunshine duration no smaller than 2,000 h, an annual rainfall of 800-1,200 mm, an elevation of 1,600-2,200 m and a soil pH value of 5.5-7 is selected as an orchard construction location; field planting holes are staggered in two rows, wide row spacing of the grafted seedlings is 200 cm, narrow row spacing of the grafted seedlings is 100 cm, and the soil field moisture capacity of the cutting orchard is no smaller than 60% and no larger than 70%; the field planting is performed in January, and cions can be picked in the same year. Through the method, 6,000-9,000 cions can be yielded per 666.7 square meters in the same year of field planting, 17,000-40,000 cions can be yielded per 666.7 square meters in the second or third year, the cion roughness is 1.0cm-1.5cm, a pith is smaller than 1 / 3 of the cion roughness, cion quality is good, production is rapid, and yield is high.

Description

technical field [0001] The invention relates to the technical field of forest tree seed breeding, in particular to a method for cultivating hard branch scions for walnut grafting. Background technique [0002] The tree species of the genus Juglans is a world-renowned economic forest tree species. Walnut is one of the industries that promote the poverty alleviation of farmers in mountainous areas and promote the economic development of rural areas in mountainous areas. It has become a pillar industry of forestry in Yunnan Province, and its planting area and output account for about two-thirds of the country's total. [0003] Pickled walnut (J.sigillata Dode), also known as iron walnut, deep-grained walnut and Yunnan walnut, is one of the main walnuts cultivated in China. Yunnan walnut is mainly distributed in Southwest China, and Yunnan Province is the germplasm of Yunnan walnut The area with the richest resources and the most concentrated distribution and cultivation. Hard...

AI Technical Summary

Problems solved by technology

At present, after a large number of ears are harvested in the production garden, it not only has a great impact on the walnut yield of the current year and the next year, but also has problems such as too thick or too thin, large pith, and insufficient bud eyes, so the quality is difficult to guarantee.

It is also unavoidable that cotton walnut or iron walnut branches are mixed in the scion of the good seed, so that the purity of the good seed of the grafted seedling is not high, resulting in late results, mixed varieties, poor commerciality, and low economic benefits. The hysteresis effect will bring walnut farmers. serious economic loss

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