Breeding method of ornamental purple-yellow-leaf rape line

Abstract

The invention discloses a breeding method of an ornamental purple-yellow-leaf rape line. According to the method, a cabbage type rape radish cytoplasmic male sterile line with lack of green core leaves is used as a female parent, a purple-red leaf cabbage type rape line is used as a male parent, and hybridization is conducted to obtain a first-filial generation; and the first-filial generation isbackcrossed with the purple-red leaf cabbage type rape line so as to obtain rape of the ornamental purple-yellow-leaf rape line. The ornamental purple-yellow-leaf rape line is a novel ornamental oilseed rape having yellow core leaves and other purple-red leaves and obviously different from the leaf colors of other rapes. The rape can be used in tourist attractions, parks, urban squares, urban roadgreening and other tourist, sightseeing and leisure places; the rape has high ornamental value as people can enjoy the sight of the leaves of the rape in a seedling stage and the flowers of the rapein a flowering stage; and an ornamental period of the rape is six months or more.

Description

technical field [0001] The invention relates to a method for breeding crops, in particular to a method for breeding a purple-yellow-leaf ornamental rape strain. Background technique [0002] Rapeseed is one of the main oil crops in the world. The types of rape currently used in production mainly include Brassica napus L., Brassica juncea L. and Brassica campestris L.. With the development of rapeseed quality breeding, especially the breeding and promotion of double-low (low erucic acid, low glucosinolate) rapeseed varieties, the acquisition of high-quality rapeseed oil and feed protein has become the most important purpose of rapeseed production, and promotes the world. The development and progress of rapeseed production. [0003] The function of rape is not limited to this. In recent years, with the vigorous development of the tourism industry, the tourism function of rape has been continuously highlighted. In the spring when everything is recovering, a field of rapeseed...

AI Technical Summary

Problems solved by technology

In addition, Fu Donghui of Jiangxi Agricultural University and others invented and provided a method of prolonging the flowering period of rapeseed and a seed production method of sterile line rapeseed (Chinese patent application number: 201610250303.8), which can be used as a reserve for the sowing of ornamental rapeseed in the next download. Solve the problem of short flowering time of rapeseed

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