A kind of seed production method of three-line hybrid wheat, the produced seed and its application

A technology for hybrid wheat and hybrid seeds, which is applied in the fields of application, botanical equipment and methods, angiosperms/flowering plants, etc., can solve the problems of doubling the harvest time, restricting the scale, and high cost of seed production, and achieves the expansion of the scope and the harvest. The effect of high efficiency and reduced seed production cost

Active Publication Date: 2015-11-18
XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a seed production method of three-line hybrid wheat, the main purpose of which is to solve the problem that the male and female parents must be harvested separately during the harvesting process of the existing three-line hybrid wheat seed production process, resulting in doubling the harvest time, The cost of seed production is very high, which seriously restricts the problem of large-scale and mechanized hybrid seed production

Method used

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  • A kind of seed production method of three-line hybrid wheat, the produced seed and its application
  • A kind of seed production method of three-line hybrid wheat, the produced seed and its application

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Embodiment 1 and Embodiment 2

[0032] Example 1 and Example 2: Xindong 41 (manufactured by Xinjiang Academy of Agricultural Reclamation Sciences) was transferred to CMS Xindong 41A as the female parent of winter male sterile line; Xinchun 35 (manufactured by Xinjiang Academy of Agricultural Reclamation Sciences) It was transformed into the restorer line Xinchun 35R, which was used as the male parent of the spring restorer line.

Embodiment 3 and Embodiment 4

[0033] Example 3 and Example 4: Transplant Xinchun 38 (manufactured by Xinjiang Academy of Agricultural Reclamation Sciences) into the male sterile line Xinchun 38A as the female parent of spring male sterile line; transfer Xindong 17 (produced by Xinjiang Academy of Agricultural Reclamation Sciences) to The restorer line Xindong 17R was bred as the male parent of the winter restorer line.

Embodiment 1

[0035] The seed production method of the three-line hybrid wheat of embodiment 1 comprises the following steps:

[0036] Step 1: Select the parents of the strong dominant hybrid combination, select the female parent Xindong 41A of the winter male sterile line and the male parent Xinchun 35R of the spring male sterile line to form a parental combination; the plant height of the sterile line is 73 cm, and the plant height of the restorer line is 90 cm.

[0037] Step 2, the female parent of the winter male sterile line and the male parent of the spring restorer are sown, and field management is carried out after sowing; the female parent of the winter male sterile line and the male parent of the spring restorer are mixed in a ratio of 85%: 15%. If the seeding rate is 225kg / hm 2 , the seed quantity of the female parent is 191.25kg / hm 2 , the seed quantity of the male parent is 33.75kg / hm 2 well mixed. In autumn, when the daytime minimum temperature is stable at 0-3°C, the winte...

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Abstract

The invention discloses a seed production method for three-line hybrid wheat, a produced seed and application of produced seed, relates to the technical field of hybrid wheat seed breeding, and solves the problem that the seed production efficiency in the conventional three-line hybrid wheat seed production process is low. By the use of the characteristic that wheat has a vernalization ecological difference, the seed production method comprises the following steps of 1. combining parents, namely forming a parent combination 1 by selecting a winterness sterile line female parent and a springness restorer line male parent, or forming a parent combination 2 by selecting a springness sterile line female parent and a winterness restorer line male parent; 2. performing sowing, namely sowing seeds of the parent combination 1 or the parent combination 2, wherein the seeds of the springness restorer line male parent or the winterness restorer line male parent are sowed in winter, so that the seeds can live through the winter in soil in the form of germs; 3. performing field management after the seeds are sowed; and 4. after the wheat is mature, uniformly harvesting matured wheat to obtain the hybrid seeds of wheat.

Description

technical field [0001] The invention relates to the technical field of hybrid wheat breeding, in particular to a method for producing three-line hybrid wheat seeds, the produced seeds and applications thereof. Background technique [0002] With the further increase of the population, the per capita arable land area is decreasing year by year, and food security is the primary issue facing mankind. Wheat is the main food crop with the largest total output and extremely high nutritional value in the world. Increasing wheat production is of great significance to world food security. Heterosis is a common phenomenon in the biological world, and the use of heterosis in wheat is one of the main measures to increase wheat yield. [0003] The key to restricting the large-scale application of hybrid wheat is the lack of an efficient and simple hybrid wheat seed production technology system. The existing three-line method hybrid wheat seed production technology is that the male paren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H5/00
Inventor 田笑明徐红军聂迎彬韩新年穆培源桑伟崔凤娟
Owner XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
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