Breeding method for rape

Abstract

The invention discloses a breeding method for rape. The breeding method comprises the steps as follows: selecting a rape variety Zhenyou No.5 which is planted in a large area in production, and has the characteristics of high yield, good disease resistance and lodging resistance, outstanding comprehensive characters and wide applicability, and performing purification and rejuvenation; collecting and screening an excellent variety (line) which has relatively far genetic relationship with the Zhenyou No.5, and has the characteristics of double-low quality, good yielding ability, outstanding stress resistance and high oil content and performing purification and rejuvenation; taking the Zhenyou No.5 purification and rejuvenation line as a female parent and taking the screened distant related purification and rejuvenation line as a male parent, and performing castration and hybridization manually; harvesting seeds and planting in the same year to perform yield identification, performing field screening to obtain hybrid seeds with good comprehensive characters, high yield and strong advantages, and performing indoor seed test and quality determination in a combination way on the selected target combination; adopting a chemical hybridizing agent to perform chemical hybridizing on the Zhenyou No.5, and planting the male parent to perform seed production, so as to product hybrid seeds; performing a multi-point test on the produced seed target combination through chemical hybridizing, and testing the advantages and the wide adaptability of the produced seed target combination; performing pre-production, demonstration and popularization.

Description

technical field [0001] The invention discloses a plant cultivation method and related technical measures, in particular a breeding method utilizing rapeseed heterosis. More specifically, it is a method for quickly, safely and efficiently utilizing the heterosis of rapeseed, with simplified process, easy operation and high controllability to cultivate a new combination of rapeseed, which belongs to the field of plant cultivation technology. Background technique [0002] With the rapid development of the economy and the continuous improvement of people's living standards, the market demand for rapeseed is increasing, while the area of ​​cultivated land occupied by industry has increased sharply, the planting area of ​​rapeseed has relatively decreased, the contradiction between supply and demand has become more prominent, and the international and domestic supply is tight. , the global demand for vegetable oil is increasing. At present, the world's oil supply has become tense...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the deficiencies and problems in the above-mentioned prior art, and provide a fast, safe and efficient approach and method for using rapeseed heterosis, so as to make up for the low-temperature micro-powder that occurs in the process of traditional rapeseed heterosis utilization. The emergence of sterile plants will cause yield loss and risk of seed compensation, and overcome the technical difficulties of tedious seed production and difficulty in guaranteeing seed production yield

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