Grafting and breeding method for tea tree root stock

Abstract

The invention discloses a grafting and breeding method for a tea tree root stock. The method comprises the steps of: taking roots of seeding obtained from sowing tea seeds as the stock, taking annual half-lignifying or lignifying branches of tea tree fine breeds, cutting the branches into short spikes, grafting the short spikes with the stock, closely wrapping an grafting interface with aluminiumfoil adhesive tapes, planting the grafted branches in a seeding nursery, and conducting following management in a way similar to that of the conventional cottage and breeding method. The survival rate of the grafted seeding reaches more than 90%, and large-scale breeding can be performed. By adopting the grafting and breeding method for the tea tree root stock, the disadvantages that the short spike cuttage seeding has no main root, the tea seeding has poor drought and cold resistance, and the requirement on the planting soil condition is high are overcome, a great deal of sprout removing work during breeding management, resulting from germination and growth of root adventitious buds of root caps, is avoided, and the purity of the seeding is guaranteed; in addition, the aluminium foil adhesive tapes are adopted for colligation and wrapping, so that the survival rate of the grafted seeding is increased.

Description

technical field [0001] The invention belongs to the technical field of horticulture, and in particular relates to a tea tree root anvil grafting breeding method. Background technique [0002] Clonal tea seedlings can better maintain the seed properties of tea tree varieties, and the biological and economic traits are relatively stable. The tea gardens with good clones are easy to manage and mechanized; the fresh leaves grow more evenly and neatly, which are suitable for machine harvesting and are beneficial to improve the quality of tea making. Since the 1990s, my country began to pay attention to and encourage the development of tea gardens with improved clones. So far, tea gardens with improved clones account for about 40% of the total area of ​​tea gardens in the country, and there is still a long way to go to develop improved clones in tea gardens. [0003] Clonal tea tree varieties are usually bred by asexual propagation methods such as short ear cuttings, mother tree ...

AI Technical Summary

Problems solved by technology

Practice has proved that the disadvantages of the existing bud-stock grafting and breeding methods are: due to the strong germination ability of root cap adventitious buds, the new shoots germinated from adventitious buds grow rapidly. If the germination is not timely, the germinated new shoots will compete for the water and nutrients of the scion , resulting in scion death

[0004] The development of clonal improved tea gardens requires a large number of clonal improved tea seedlings, and the existing breeding methods of clonal improved tea trees have some deficiencies, thus restricting the progress of breeding and popularizing clonal improved tea trees

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