A method for rapidly cultivating Chinese fir seed-producing mother plants

Abstract

The invention relates to a method for cultivating Chinese fir seed-producing mother plants. The method comprises the following steps: rootstock cultivation; scion selection; grafting: after cutting the scion, the rootstock is grafted at a distance of 8 cm to 12 cm from the ground, and the diameter of the grafting port is more than 3 cm. , Graft the above-mentioned scion according to the pith cambium butt grafting method, and leave the side branches near the ground of the rootstock or the shoots of the rootstock as vegetative branches; the management and cultivation of the mother plant from the first year to the second year. The grafting survival rate of the method for cultivating Chinese fir seed-producing mother plant described in the present invention is more than 95%; the grafted mother plant grows fast and is easy to be plasticized, and the tree body dwarfs into a "happy type"; the height of the tree body and the flowering and fruiting part can be controlled at 2.2m Below, the amount of male and female flowers is significantly increased, the distribution of male and female flowers is balanced, the distribution position of female flowers is low, and it is easy to assist artificial pollination, and the seed production potential of the mother plant is fully exerted, reaching the production level; the fruiting part of the mother plant is low, easy to collect seeds, and the seed collection efficiency can be doubled Above, this method has laid an important foundation for the early harvest, high yield and stable yield of the seed orchard.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a method for quickly cultivating a Chinese fir seed-producing mother plant. Background technique [0002] Chinese fir [Cunninghamia lanceolata (Lamb.) Hook.] is an evergreen coniferous tree species of the Taxodiaceae genus Cunninghamia, and it is also one of the most important commercial timber tree species in China. At present, the seeds used for raising Chinese fir seedlings mainly come from seed orchards, and the most important thing in the construction and management of seed orchards is the cultivation of mother plants. The conventional methods involving the cultivation of mother plants in Chinese fir seed gardens have been described in the local standard of Guangdong Province "Technical Regulations for the Construction of Chinese Chinese fir seed gardens" (DB44 / T 1533-2015), including: ①Grafting is the main method, and the scion favors the crown of the tree ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for cultivating Chinese fir seed-producing mother plants, which significantly shortens the cultivation period of the seed-producing mother plants compared with the traditional method, effectively solves the problems of long cultivation period and high cost of the Chinese fir production mother plants, and realizes the production of Chinese fir. Early fruiting and high yield of mother plants

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