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Breeding process of cabbage type rape hybrid

A cabbage-type rape and cabbage-type technology, which is applied in the directions of botanical equipment and methods, applications, and plant genetic improvement, can solve problems such as yield impact, and achieve the effect of improving seed production yield and purity

Inactive Publication Date: 2007-02-07
JIANGSU ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, moss mossing has a certain impact on yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1: The FS and FS restorer lines are used in the breeding route of the three cytoplasmic lines of Brassica napus for the seed production of Brassica napus hybrids.

[0018] The breeding of the female male sterile line is the same as the conventional process, and the cultivation field that is flat and convenient for irrigation and drainage is selected, and there is safety isolation (the space isolation distance is more than 1.5 kilometers, and other cruciferous crops are not allowed to be planted in the isolation area). When producing seeds, the female sterile restorer line transduced by FS was used as the male parent and the female parent, and the ratio of the parent parent was 1:8-10. After fully mixing, it can be sown mechanically or manually. Field management and removal of impurities and inferiority are the same as the conventional three-line seed production process. Harvesting at maturity can be done mechanically or manually. The yield of seed production h...

Embodiment 2

[0019] Example 2: FS and FS Restorer Lines Used in the Breeding Approach of Two-line Nuclei Seed production of Brassica napus hybrids.

[0020] The breeding of the female parent is the same as the conventional process, and the seeding field that is flat and convenient for irrigation and drainage is selected, and there is safety isolation (the space isolation distance is more than 1.5 kilometers, and other cruciferous crops must not be planted in the isolation area). When producing seeds, the female sterile restorer line transduced by FS was used as the male parent and the female parent, and the ratio of the parent parent was 1:10-12. After fully mixing, it can be sown mechanically or manually. Field management, removal of fertile plants from the female parent and removal of impurities are the same as the conventional two-line seed production process. Harvest mechanically or manually at the mature stage. The yield of seed production hybrids increased by 27.5%, the purity incr...

Embodiment 3

[0021] Example 3: Seed production of Brassica napus hybrids using FS and FS restorer lines in the breeding route of chemical male killing.

[0022] The breeding of the female parent is the same as the conventional process, and the seeding field that is flat and convenient for irrigation and drainage is selected, and there is safety isolation (the space isolation distance is more than 1.5 kilometers, and other cruciferous crops must not be planted in the isolation area). During seed production, the FS and the female parent were planted in alternate rows, and the ratio of the parents to the parent row was 2:5. Field management, chemical detasseling of the female parent and removal of impurities are the same as the conventional chemical detasseling seed production process. Harvest mechanically or manually at the mature stage. The yield of seed production hybrids increased by 26.1%, the purity increased by 6.6%, the amount of labor was saved by 5 man / mu, and the increased economi...

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PUM

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Abstract

The present invention discloses one breeding process of cabbage type rape hybrid. The said breeding process transfer breeds cabbage type rape female-sterile restoring line with cabbage type rape female-sterile line, that is, cabbage type rape female-sterile line and its restoring line are used in breeding cabbage type rape hybrid. The said method is saving in labor and cost, simple and effective, and has high rape hybrid yield and purity, fully utilized heterosis and other advantages.

Description

1. Technical field [0001] The invention relates to a method for hybrid seed production of Brassica napus by using a female sterile line (FS) of Brassica napus, belonging to the field of heterosis utilization of Brassica napus. 2. Background technology [0002] Utilization of heterosis is an important way to increase crop yield. There are many ways to utilize heterosis in rapeseed, mainly including cytoplasmic male sterility, nuclear male sterility, chemical male sterility and so on. [0003] Rapeseed has significant heterosis, which can generally increase yield by 20%-30%, and a good combination can increase yield by 50%. The popularization and application of hybrid rapeseed is developing rapidly. Only the area of ​​hybrid rapeseed in my country has accounted for more than 70% of the total area of ​​rapeseed. The current rapeseed hybrid combinations mainly use Polima CMS and Shan 2ACMS male sterile three-line hybrids. Nuclear male sterility is another important way to util...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
Inventor 戚存扣浦惠明张洁夫傅寿仲陈新军高建芹黄迎娣陈松
Owner JIANGSU ACAD OF AGRI SCI
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