A kind of breeding method of special ornamental rape varieties

Abstract

The invention discloses a method for breeding rape varieties special for ornamental use. The cytoplasmic sterile line of cabbage-type rape radish is used as the female parent, and the rapeseed strain of mustard type is used as the male parent, and hybridization is carried out to obtain hybrid offspring, that is, the special ornamental rape variety is obtained. Varieties of rapeseed. The invention uses the cytoplasmic sterile line of Brassica napus radish as a platform to create a special ornamental rape variety suitable for planting in scenic spots through an interspecific hybridization method. The operation is simple, the breeding cycle is short, the seed production has high yield, high purity, and good quality To ensure the consistency of the varieties in production performance, the bred hybrids can keep the rapeseed plant tall and strong, the vegetative body grows vigorously, the petals are large and flat, side-folded, many branches, long flowering period, purple-red leaves at the seedling stage, It can also be used for viewing, which is very suitable for the viewing requirements of scenic spots. The method has strong versatility and can be extended to the breeding of other similar varieties. It is of great significance to provide a reference method for cultivating more and better landscapes or rapeseed varieties required for the combination of agriculture and tourism in practice.

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

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