Method for breeding special ornamental rape variety

Abstract

The invention discloses a method for breeding a special ornamental rape variety. The method comprises the steps of utilizing a radish cytoplasmic sterile line of brassica napus as a female parent anda brassica juncea strain as a male parent, and carrying out hybridization to obtain filial generation, namely a special ornamental rape variety. The radish cytoplasmic sterile line of the brassica napus is utilized as a platform, and the special ornamental rape variety suitable for being planted in a scenic area is created through an interspecific hybridization method, so that the method is simpleto operate, short in breeding period, high in hybrid seed yield, high in purity and good in quality, and can ensure the consistency of the variety in production performance; the bred hybrid can maintain a tall rape plant, vigorous growth of a vegetative body, large and flat petals, lateral overlapping growth, multiple branches, a long flowering period and purplish red leaves in a seedling stage;and the special ornamental rape variety can be used for viewing, and is very suitable for the viewing requirements of the scenic area. The method is high in universality, can be generalized to breeding of other similar varieties, provides a reference method for cultivating more and better landscape or a rape variety required for agriculture and tourism combination in practice and has great significance.

Description

technical field [0001] The invention belongs to the technical field of rape planting, cultivation and breeding, and in particular relates to a method for breeding rape varieties special for ornamental purposes. Background technique [0002] Rapeseed is a multi-branched and infinite inflorescence crop of the Brassicaceae. It not only has bright colors, long flowering period, but also has a variety of types, including Brassica napus, Brassica napus and Brassica napus. In recent years, my country's tourism industry has developed rapidly, and a number of unique tourist landscapes have emerged that combine unique natural features and rapeseed flowers, and have successfully achieved brand upgrading. The most typical example is Wuyuan, Jiangxi. These scenic spots pay the most attention to the length of flowering period, petal size, petal color and seedling leaf color of rapeseed varieties in the design of rape flower sea. There is no requirement for the firm seed yield of rapeseed,...

AI Technical Summary

Problems solved by technology

In response to this demand, Chinese rapeseed researchers have also tried measures to extend the flowering period, such as spraying chemical agents, planting sterile lines, and stalking at the bud moss stage, but the effect was not significant. Instead, the petals became smaller and the flowers became scarce. Affect the ornamental quality of flowering period

Images