Crossbreeding method for new variety of tea trees

Abstract

The invention discloses a crossbreeding method for a new variety of tea trees. The crossbreeding method comprises the following steps: 1) selecting parents; 2) collecting pollens; 3) conducting artificial pollination; 4) picking seeds; 5) breeding seeds; 6) conducting field planting; and 7) screening excellent single plants. The invention belongs to the field of crossbreeding of tea trees and particularly provides an artificial crossbreeding method by taking Keemun camellia sinensis var.sinensis cv.Zhuye tea as a female parent and camellia sinensis var.assamica cv.Fengqing-Daye tea as a male parent. Through hybridization, single plant selection, asexual propagation, strain comparison and regional test, a new variety of tea trees is bred. The variety inherits excellent botanical characteristics of the female parent, cold resistance of the tea trees is improved, and the crossbreeding method for a new variety of tea trees enables tea trees to have strong tenderness, obvious three-dimensional germination, strong growth vigor, strong stress resistance and strong fecundity.

Description

technical field [0001] The invention belongs to the field of hybrid breeding of tea trees, and specifically refers to a method for hybrid breeding of new varieties of tea trees. Background technique [0002] Breeding and popularizing improved varieties of tea trees is an economical and effective technical measure to increase tea yield and improve tea quality. Hybrid breeding is the main way to cultivate new varieties of tea trees. Sexual hybrid breeding uses the principle of gene recombination and heterosis to cultivate comprehensive and excellent traits with parents. And the quality exceeds the parental phenomenon. Artificial cross-breeding is to select parents according to the needs of breeding objectives, and to use local germplasm resources as parents to breed varieties, which has the characteristics of strong adaptability and easy promotion; To make use of the effective traits controlled by cytoplasmic genes, local varieties with more excellent traits are used as fema...

AI Technical Summary

Problems solved by technology

The buds and leaves are relatively fat, green, with a lot of hairs, the buds and leaves have strong fertility and strong tenderness. The spring tea harvesting period is in mid-March, and the peak period of one bud and three leaves is in late March or early April. The yield is high and strong. strong, but there are disadvantages of low aroma and weak cold resistance of the green tea produced; Keemun chinensis is a national-level improved tea tree variety in Huangshan area. The leaf shape is oval or oblong, and the leaf quality is soft. Overwintering buds germinate in mid-March. The buds germinate neatly, with dense bud heads, strong adaptability and stress resistance, especially low temperature resistance, and high aroma of green tea