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Method for creating wheat sterile lines and application thereof

A technology of wheat and wheat seeds, applied in the fields of application, botany equipment and methods, plant gene improvement, etc., can solve the problems of limited development of wheat breeding process, low efficiency, long breeding method, etc., and achieve an environmentally friendly shortcut Effect

Inactive Publication Date: 2018-11-13
ZHOUKOU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The conventional wheat breeding process is to select excellent lines after natural hybridization or self-crossing until a new variety is bred. However, the conventional breeding method takes a long time and has low efficiency, which limits the development of wheat breeding process. Therefore, in order to reduce the breeding work, select suitable The hybrid male parent, female parent and suitable hybridization method are particularly important

Method used

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  • Method for creating wheat sterile lines and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for creating a wheat sterile line, the method comprises the following steps:

[0029] The first step, on October 6, the wheat seeds of Zhoumai 28 and Xinong 1376 were planted in the experimental field normally, and the routine management of watering, fertilizing and weeding was carried out according to the normal wheat cultivation procedures;

[0030] In the second step, when the Zhoumai 28 and Xinong 1376 wheat varieties grow to the stage of differentiation of pistil primordium in the internal form, and the external form shows that the flag leaf grows to half the length of the second leaf, high temperature treatment is carried out at this time for 10 days, and the temperature of the wheat growth environment is 10-15°C higher than the normal environment temperature to obtain a wheat sterile line.

[0031] The method of high temperature treatment is as follows: build a shed above the area of ​​wheat to be treated with high temperature, and then cover the roof of...

Embodiment 2

[0033] A method for creating a wheat sterile line, the method comprises the following steps:

[0034] The first step, on October 17, the wheat seeds of Zhoumai 28 and Xinong 1376 were normally planted in the experimental field, and the routine management of watering, fertilizing and weeding was carried out according to the normal wheat cultivation procedures;

[0035] In the second step, when the Zhoumai 28 and Xinong 1376 wheat varieties grow to the stage of differentiation of pistil primordium in the internal form, and the external form shows that the flag leaf grows to half the length of the second leaf, high temperature treatment is carried out at this time for 12 days, and the temperature of the wheat growth environment is 10-15°C higher than the normal environment temperature to obtain a wheat sterile line.

[0036] The method of high temperature treatment is as follows: build a shed above the area of ​​wheat to be treated with high temperature, and then cover the roof o...

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Abstract

The invention belongs to the technical field of wheat breeding, and particularly relates to a method for creating wheat sterile lines and application thereof. The method selectively includes steps offirstly, normally planting wheat seeds in test fields; secondly, carrying out high-temperature treatment for 10-12 days when wheat grows until the wheat in internal forms is at pistil and stamen primordium differentiation stages and the wheat in external forms is expressed as the fact that each flat leaf grows to have the length of a half of the length of each inverted second leaf, and allowing the temperatures of wheat growth environments to be higher than the normal environmental temperatures by 10-15 DEG C so as to obtain the wheat sterile lines. The method and the application have the advantages that the wheat sterile lines created in the mode are free of substantial harm on ovaries, and as proved by experiments, the artificial pollination setting percentages are higher than 96%; matched and hybrid combination can be voluntarily carried out on different wheat varieties to a certain extent by the aid of the wheat sterile lines created in the mode, accordingly, dominant hybrid combinations further can be selectively bred, and hybrid wheat varieties can be ultimately selectively bred.

Description

technical field [0001] The invention belongs to the technical field of wheat breeding, and in particular relates to a creation method and application of a wheat sterile line. Background technique [0002] Wheat is a gramineous crop widely planted in the world, and it has always been one of the main varieties of traditional crops in our country. According to statistics, wheat production must increase by 2% per year to meet the needs of people all over the world. In the short term, one of the ways to increase wheat yield is still to breed high-yielding varieties, and the breeding of hybrid varieties is an important way of expressing high-yielding varieties. The routine breeding of wheat sterile lines takes a long time, while the creation of some other sterile lines may depend on weather conditions or be unfriendly to the environment, and the creation cost is relatively high. Therefore, it is an urgent task to choose a more favorable and low-cost way to create sterile lines o...

Claims

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Application Information

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IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 刘红占
Owner ZHOUKOU NORMAL UNIV