Breeding method of disease-resistant herbicide-resistant rape variety

The invention discloses a breeding method of a disease-resistant herbicide-resistant rape variety, which comprises the following steps: selecting a glyphosate herbicide-resistant rape variety Q3 as a parent P1, and selecting a high-erucic acid rape variety cotton oil No.13 as a parent P2; the disease-resistant herbicide-resistant rape variety is bred by taking a parent P1 as a parent, taking a rape sclerotiniose-resistant variety Zhongshuan9 as a parent P3, taking a rape white rust-resistant variety Regent as a parent P4, hybridizing P1 and P2, hybridizing P3 and P4, then selfing, and then performing multi-generation hybridization and selfing. The rape variety not only has strong disease-resistant and herbicide-resistant characteristics, reduces the spraying amount of pesticides, is more environment-friendly and saves the planting cost, but also improves the oleic acid content to a certain extent, and is subjected to multi-generation breeding, high in stability and suitable for large-area planting. 本发明公开了一种抗病