Tea tree double clone hybrid variety breeding method based on Yabukita*C. sinensis cv. Baihaozao

Abstract

The invention discloses a tea tree double clone hybrid variety breeding method based on Yabukita*C. sinensis cv. Baihaozao. According to the targets of high yield, early ripening, high quality and strong stress resistance and the principle of parental character complementation, varieties of C. sinensis cv. Baihaozao and Yabukita are selected to arrange a double clone hybrid seed orchard. The female parent C. sinensis cv. Baihaozao is a national-level improved variety (GS13017-1994), and a male parent Yabukita is an introduced Japanese tea industry main variety. The C. sinensis cv. Baihaozao and the Yabukita are subjected to single-line double-plant interlaced hedge planting according to 1.5m*0.33m, and seed harvesting, sowing and seedling raising are started in the fourth year. By the aidof variety comparison tests and area tests, the Yabukita*C. sinensis cv. Baihaozao tea tree double clone hybrid varieties with strong adaptability, high yield and high quality and adapting to popularization in northern and high mountain tea areas are bred. The varieties are moderate in ripening, less in fine long hair, strong in adaptability, high in yield, strong in shoot tenderness-keeping ability, suitable for preparing famous green tea and not susceptible to anthracnose.

Description

technical field [0001] The invention belongs to the field of hybrid breeding of tea trees, and in particular relates to a method for breeding double-clonal hybrid varieties of tea trees based on Yaubei × Baihaozao. Background technique [0002] Heterosis is a universal law in the biological world, and heterosis has been widely used in agricultural production. There are two ways about the utilization of heterosis of tea trees: one way is to adopt the method of hybridization, selection and vegetative propagation to select clonal improved varieties. At present, all tea-producing countries in the world basically select and promote clonal improved varieties; The approach is to directly use the seeds of the double-clonal hybrid varieties for production. India, as the second largest tea-producing country, while breeding and promoting 30 clone varieties, also promotes the application of 24 pairs of double clone combinations in production, because of its strong stress resistance of ...

AI Technical Summary

Problems solved by technology

The Qimen Institute of Tea Science in Anhui Province carried out this work from the 1960s to the 1980s. However, because tea trees are perennial crops, the work is difficult, the time span is long, and the personnel change is large. So far, no specific tea tree varieties have been bred. double clone hybrid

Images