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Method for improving artificial hybridization efficiency of wheat in Huang-Huai-Hai wheat regions by utilizing greenhouses

An artificial hybridization, wheat technology, applied in the fields of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems that limit the opportunities for breeders to obtain excellent hybrid combinations, the limited number of different hybrid combinations, and reduce the normal seed setting rate of hybrid ears, etc. To achieve the effect of prolonging the suitable time of artificial hybridization, improving the seed setting rate of hybridization, and improving the efficiency of artificial hybridization

Active Publication Date: 2019-01-08
济南市农业科学研究院
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AI Technical Summary

Problems solved by technology

The Huanghuaihai wheat region mainly grows winter (winter and weak winter) wheat. Under natural conditions, the suitable time for artificial hybridization is only about 15 days. If it encounters rainy days during this period, it will be less, and artificial pollination is best in sunny days. After 8:00 in the morning and before 4:00 in the afternoon, carry out under the conditions of 18-23°C flowering, otherwise it will affect the normal pollination process and reduce the normal seed setting rate of hybrid ears
Therefore, under limited time and manpower conditions, the number of different hybrid combinations that breeders obtain is very limited, thereby limiting the chance of breeders to obtain excellent hybrid combinations every year. A method to obtain more combinations and high-quality hybrid seeds with limited time and manpower

Method used

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  • Method for improving artificial hybridization efficiency of wheat in Huang-Huai-Hai wheat regions by utilizing greenhouses
  • Method for improving artificial hybridization efficiency of wheat in Huang-Huai-Hai wheat regions by utilizing greenhouses
  • Method for improving artificial hybridization efficiency of wheat in Huang-Huai-Hai wheat regions by utilizing greenhouses

Examples

Experimental program
Comparison scheme
Effect test

example 2

[0054] Each instance has 2 staff members, and the technical maturity of the staff for artificial hybridization is the same. Under this condition, the following examples will be implemented in 2017 in 5 groups:

Embodiment 1

[0056] (1) Sowing under field conditions, the Huanghuaihai wheat region is from October 1st to 15th, 2017. Each variety is planted in 2 rows, the row length is 1.2m, the distance between plants is about 3cm, 40 seeds in each row, and the sowing depth is preferably 3-5cm. Sowing with sufficient moisture content, if the moisture content is not good, you need to water the head water in time after sowing, and cooperate with manual hoeing after the surface is dry, and strive to preserve the seedlings. At the end of November and early December, before the soil is frozen, water the frozen water thoroughly to improve the cold resistance of the seedlings.

[0057] (2) Seed pretreatment: the wheat seeds are first refrigerated at a relative humidity of 70 to 90% for 18 to 24 hours, and then placed at a relative humidity of 20 to 40% and a temperature of 30 to 35°C for 18 to 24 hours; After 3 times, they were sown under greenhouse conditions for later use.

[0058] (3) The suitable sowi...

experiment example 1

[0082] (1) Sowing under field conditions, the Huanghuaihai wheat region is from October 1st to 15th, 2017. Each variety is planted in 2 rows, the row length is 1.2m, the distance between plants is about 3cm, 40 seeds in each row, and the sowing depth is preferably 3-5cm. Sowing with sufficient moisture content, if the moisture content is not good, you need to water the head water in time after sowing, and cooperate with manual hoeing after the surface is dry, and strive to preserve the seedlings. At the end of November and early December, before the soil is frozen, water the frozen water thoroughly to improve the cold resistance of the seedlings.

[0083] (2) The suitable sowing time under greenhouse conditions is November 15-30, 2017. Breeders can plant the same or different breeding parents as the field according to the hybrid combination plan, and the planting specifications are the same as the field. If the greenhouse area is limited, they can also be sown in flowerpots. ...

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Abstract

The invention relates to a method for improving artificial hybridization efficiency of wheat in Huang-Huai-Hai wheat regions by utilizing greenhouses. According to the method, certain varieties and quantities of wheat breeding parents are planted in field and greenhouse conditions, and by utilizing the different wheat breeding times under the two different conditions, the wheat heading and blooming periods are manually adjusted to achieve the aims of prolonging the manual hybridization time of winter wheat, improving the hybridized spike fructification quality, increasing the quantity of crosscombinations obtained in each year and improving the manual hybridization efficiency.

Description

technical field [0001] The disclosure belongs to the technical field of agricultural breeding, and in particular relates to a method for improving the artificial hybridization efficiency of wheat in Huanghuaihai wheat region by using a greenhouse. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Wheat is a self-pollinated crop, using artificial hybridization technology, that is, after wheat earing and before flowering, the anthers have formed but before they turn yellow and mature, artificial detasseling is performed, and then artificial pollination is performed after the anthers of other varieties of wheat mature. It is an important link to obtain the offspring of different parental combinations. The Huang-Huai-Hai wheat region is mainly planted with winter (winter and weak winter) wheat. Under natural conditions, the suitable time for artificia...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01G22/20
CPCA01H1/02A01G22/20
Inventor 袁园园郭凯徐洪明黄昌见刘静
Owner 济南市农业科学研究院
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