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Method for rapidly and efficiently breeding eurytopic millet varieties

A technology of broad adaptability and millet, applied in the field of breeding new varieties of millet with broad adaptability and high yield, can solve the problems of not meeting the needs of millet variety replacement, restricting the development of millet industry, and long breeding cycle, so as to improve adaptability. and breeding efficiency, improving breeding efficiency and shortening breeding years

Pending Publication Date: 2018-09-28
安阳市农业科学院
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Problems solved by technology

The traditional breeding method mainly relies on phenotype to select the target traits, which has long breeding cycle, low efficiency, and large blindness, so it cannot meet the needs of millet variety replacement and restricts the further development of the millet industry

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  • Method for rapidly and efficiently breeding eurytopic millet varieties
  • Method for rapidly and efficiently breeding eurytopic millet varieties
  • Method for rapidly and efficiently breeding eurytopic millet varieties

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention will be further described:

[0030] A rapid and high-efficiency breeding method for wide-adaptability millet breeding. The new wide-adaptability and high-yield millet variety Yugu 18 is crossed with Napozine herbicide-resistant millet line (belonging to the hybrid progeny material of Yugu 18), and the field phenotype judgment is combined. Spray herbicides at the seedling stage to obtain true hybrid single plants, then use the herbicide-resistant millet lines to carry out continuous backcrossing with Yugu 18 until 3-5 generations later self-crossing, and at the same time, the breeding materials of different generations are alternately shuttled between Anyang and Hainan Through planting, selection and identification, multi-point experiments were carried out in 5 different ecological areas in Anyang, Henan, Fenyang, Shanxi, Chifeng, Jilin, and Yulin, Shaanxi to identify high-generation millet strains, and...

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Abstract

The invention discloses a method for rapidly and efficiently breeding eurytopic millets. The method includes the steps: firstly, back-crossing novel eurytopic and high-yield millet varieties and sethoxydim-herbicide-resistant millet strains, and combining field phenotype judgment and seedling stage herbicide spraying to obtain true hybrid strains; secondly, performing continuous back-crossing andselection on the novel eurytopic and high-yield millet varieties and the sethoxydim-herbicide-resistant millet strains to effectively remove offspring adverse variation to rapidly obtain excellent back-crossing strains containing herbicide-resistant genes; thirdly, performing multi-point evaluation test tests in advance on the novel millet varieties in different ecological regions, and selectinghigh-yield and good-comprehensiveness varieties without obvious defects from the multi-point tests to take part in a national millet variety joint evaluation test. In the whole breeding process, different generational breeding materials are alternately planted in Anyang and Hainan, the method adopts genotype-environment interaction, novel eurytopic millet materials are effectively selected and evaluated, breeding age limit is shortened, and breeding efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of hybridization and breeding of millet, and specifically relates to a fast and efficient breeding method for selecting and breeding new varieties of millet with wide suitability and high yield. Background technique [0002] Millet is resistant to drought and barrenness, has a short growth period, high economic benefits, rich grain nutrition, and has the same source of medicine and food. It is a strategic reserve crop to deal with the increasingly serious water shortage in the future, and it is also the first choice for the optimization and adjustment of agricultural planting structure in arid areas in my country. [0003] At present, the breeding of new millet varieties mostly adopts the hybrid breeding method, that is, the conventional millet breeding method includes the steps of screening core germplasm, configuring hybrid combinations, and systematic breeding. However, it generally takes 6-7 years (gener...

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 宋慧刘金荣王素英刘海平闫宏山付楠魏萌涵王淑君宋中强邢璐张扬解慧芳
Owner 安阳市农业科学院
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