Method for comprehensively inducing purplication of tea buds and leaves

Abstract

The invention particularly relates to a method for inducing purplication of new tea leaves by comprehensively utilizing the simulation of changes of a natural ecological environment. On the basis clarifying the regulation of synthesis and expression of purplication genes in tea buds and leaves, the changes of the natural environment is simulated, and the regulation mode of gene expression profilesof anthocyanin key enzymes in the tea buds and leaves is affected by regulating the light quality and the light intensity, and the expression of key enzyme genes for anthocyanin synthesis is promotedby low temperature induction; the content of nitrogen, phosphorus and potassium elements is controlled to induce up-regulation of camellia anthocyanin synthesis pathway structural genes, meanwhile, asucrose solution is sprayed on the leaf surface, proper drought stress is used for affecting the nitrogen synthesis in the leaves, the anthocyanin accumulation amount in the tea buds and leaves is thus increased, and the purplication of the tea buds and leaves appears.

Description

technical field [0001] The invention belongs to the field of tea tree cultivation and breeding, and in particular relates to a method for comprehensively inducing purple buds and leaves of tea trees. technical background [0002] Tea tree "Purple Bud" is a special tea tree germplasm resource, which is relatively common in group tea gardens. The purple color of tea trees is mainly due to genetic mutations caused by climate and seasonal changes. The combination of low temperature, light, fertilizer nutrients and other environmental factors Under the influence, the gene expression of anthocyanin synthase is up-regulated, and the chlorophyll in the buds and leaves is converted into anthocyanins at the same time. Studies have shown that the purple buds and leaves of tea trees are closely related to the accumulation of anthocyanins in the buds and leaves. Generally, the anthocyanins contained in the purple buds and leaves of tea trees account for about 0.5% to 1% of the dry matter...

AI Technical Summary

Problems solved by technology

[0004] However, at present, the selection and breeding of tea tree purple varieties still rely on the traditional field system selection and expansion. Inconvenient factors such as long breeding cycle, cumbersome selection process, and heavy field workload have become long-term insurmountable drawbacks in breeding work. To a certain extent, it greatly limits the selection and breeding of purple tea varieties.

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