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Combined seed production method for three-line hybrid oilseed rape

A technology of rapeseed and Brassica napus, applied in the direction of botany equipment and methods, applications, plant gene improvement, etc., to achieve the effects of easy cultivation and promotion, improved pollination effect, and strong regulation ability

Inactive Publication Date: 2013-12-25
江苏丰源种业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present invention is to provide a three-line hybrid rapeseed combination seed production method, aiming to solve the problem of rape breeders in the specific hybrid combination screening existing in the three-line hybrid rapeseed combination seed production

Method used

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  • Combined seed production method for three-line hybrid oilseed rape
  • Combined seed production method for three-line hybrid oilseed rape
  • Combined seed production method for three-line hybrid oilseed rape

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Embodiment

[0035] 1) In the spring of 2000, the double-low line 99S18 was used as the female parent, and the restored line R068 was used as the male parent to prepare a hybrid combination;

[0036]2) In 2002, double-low traits and recovery traits were selected from the F2 generation, and self-selection was carried out until 2009, when F9 was used for test crossing with town A152, and the new combination was identified and tested for yield in 2009-2010. The combination number of that year was SR18, and the restorer line number was R023;

[0037] 3) In autumn 2011, it is recommended to participate in the pre-test of Jiangsu hybrid rapeseed combination;

[0038] 4) On September 20, 2011, according to the implementation plan, the parents were planted according to 1-2-0-2-1;

[0039] 5) On September 27, 2011, the male parent of the pot was sowing;

[0040] 6) On March 18, 2012, the female parent of the sterile line was decapitated;

[0041] 7) On March 19, 2012, the male parent of the pot ...

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Abstract

The invention discloses a combined seed production method for three-line hybrid oilseed rape, which comprises the following steps: selecting a cabbage type rape male sterile line as the female parent, selecting a cabbage type hybrid rape maintainer line ZhenB152 as the male parent, and performing hybrid transformation for multiple years to obtain a cabbage type rape male sterile line ZhenA152; selecting a cabbage type rape male sterile line as the female parent, selecting cabbage type rape as the male parent, and performing hybrid transformation for multiple years to obtain a cabbage type rape restorer line R023; mixed planting the female parent and the male parent in different lines, and harvesting cabbage type hybrid rape seeds in the mature period; hybridizing the stable maintainer line ZhenB152 and the sterile line ZhenA152 to breed a sterile line, and hybridizing the strong restorer line R023 and the sterile line ZhenA152 to produce hybrid seeds. The seeds prepared through the combined seed production method have high self regulation capability and are easy to plant and popularize, the individual is upright during the seedling stage, and grows healthily during the bolting period; the spring sprouting property is strong, the flower season is concentrated, the grains are dense, the yield components are coordinated, and the mature consistency is good. In addition, the seed production process of the seed production method is safe, convenient and simple.

Description

technical field [0001] The invention belongs to the technical field of rapeseed breeding, and in particular relates to a three-line hybrid rapeseed combination seed production method. Background technique [0002] Rapeseed is China's fifth dominant crop after rice, wheat, corn, and soybeans, and its planting area and output account for about 30% of the world's total. The most concentrated double-low rapeseed production area, with the rapid economic development 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, and the planting area of ​​rapeseed has relatively decreased. The contradiction between supply and demand is more prominent, the international and domestic supply is tight, and the global demand for vegetable oil is increasing. At present, the world oil supply has become tense, and China is also facing the problem of insufficient oil s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 岳绪国顾炳朝
Owner 江苏丰源种业有限公司
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