Breeding method of novel germplasm resource of green tender flower stalk

Abstract

The invention relates to a breeding method of novel germplasm resource of green tender flower stalk, comprising the following steps of: taking the conventional variety No.1 Shiyuehong of the red tender flower as female parent and recurrent parent, taking the conventional variety glossy dark green 70d of the flowering cabbage as male parent to be hybridized, backcrossing with the recurrent parent when the second generation of hybrid is carried out, backcrossing the first generation of backcross with the recurrent parent, and carrying out second generation selection on the second generation of backcross to be capable of obtaining the novel germplasm resource, wherein the color of the tender flower stalk is green, the other main agronomic traits of the tender flower stalk are similar to the No.1 Shiyuehong, and the tender flower stalk is stable in heredity and is different from the type of the existing green tender flower stalk, wherein 87.5% of the gene of the germplasm comes from the No.1 Shiyuehong. The breeding method is characterized in that the spatial estrangement can be broken through for people, so that the tender flower stalk gens with different ecological types can be fused with one another, the new type which is different from the existing green tender flower stalk can be formed, the existing type of the green tender flower stalk can be enriched, and the breeding method lays the foundation for the breeding of the new type of the novel green tender flower stalk, so that a technological approach can be provided for finally solving the technological problem of the unbalanced supply of the green tender flower stalk product in Suzhou or regions which have the similar weathers in winter and spring.

Description

technical field [0001] The invention relates to the field of vegetable breeding, in particular to a method for breeding new germplasm resources of green cabbage sprouts. Background technique [0002] Cabbage belongs to Brassicaceae Brassica species Brassica subspecies cabbage subspecies cabbage in plant taxonomy, also known as cabbage heart, cabbage tip, and cabbage mustard. Our country's characteristic vegetables are one of the types of vegetables that ordinary people like to eat. At present, according to the skin color of the edible flower sprouts, the vegetable sprouts can be roughly divided into three categories: green vegetable sprouts, red vegetable sprouts and cabbage sprouts. In the long-term cultivation process, some local varieties groups specially used for producing cabbage sprouts have been formed, such as red cabbage sprouts in Hubei, cabbage sprouts in Guangdong, and other local varieties, such as Shanghai Yidaoqi, Yangzhou cabbage sprouts, etc. . In additio...

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Problems solved by technology

[0006] The invention provides a method for breeding new germplasm resources of green cabbage sprouts, the purpose of which is to solve the problem that the production of existing green cabbage sprouts in winter and spring in Suzhou area requires low-temperature vernalization, resulting in too concentrated product marketing period and short supply period The problem

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