Method for propagating cabbage type rape of self incompatible lin

Abstract

The invention belongs to the field of rape breeding, in particular to a method for breeding a cabbage rape self-incompatible line. The invention aims at the problem of limiting the large area popularization of self-incompatible hybrids caused by the difficult massive propagation of the cabbage rape self-incompatible line, adopts the methods of auxiliary pollination of NaCl liquid plus honey and system selection to overcome the breeding barrier of the cabbage cole self-incompatible line, adopts the measures of early sowing, thin planting and high fertilizer and the like to culture a large-plant type cabbage rape self-incompatible line with a plurality of branches and adopts the selection methods of quality analysis and compatibility authentication and the like to obtain the protospecies of the cabbage rape self-incompatible line, thus further obtaining the protospecies of the cabbage rape self-incompatible line. The invention provides a simple and effective method for the massive propagation of the cabbage rape self-incompatible line and promotes the utilization of the advantages of the self-incompatible hybrids.

Description

technical field [0001] The invention belongs to the field of rapeseed breeding, and in particular relates to a method for breeding self-incompatibility lines of Brassica napus. Background technique [0002] High quality (low erucic acid, low glucosinolate) + heterosis (heterosis) breeding is the development direction of domestic and foreign rapeseed breeding. The premise of using heterosis is that there is a system (or approach) capable of producing hybrid seeds in large quantities. The self-incompatibility system has the advantages of short breeding cycle, wide range of recovery sources, and no adverse cytoplasmic effects. It is an important way to utilize heterosis in Brassica napus. In the early 1980s, Chinese scientists obtained self-incompatibility three-line hybrids of Brassica napus by using self-incompatibility lines, self-incompatibility maintainer lines and self-incompatibility restorer lines (Liu Houli etc., Preliminary Report on the Breeding of Brassica napus S...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defective of prior art, propose a kind of simple, effective method for propagating self-incompatibility of Brassica napus self-incompatibility line, to solve the problem of original seed and original seed of Brassica napus self-incompatibility line Blooming Problems, Accelerated Exploitation of Self-Incompatibility Heterosis in Brassica napus

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