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Method for breeding dwarf-male-sterile wheat germplasm

A dwarf wheat technology, applied in the field of wheat breeding, can solve the problems of poor predictability, poor repeatability, and lack of confidence in breeding, and achieve good predictability, great significance, and greater confidence in breeding

Active Publication Date: 2016-01-13
滨州市作物研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The original dwarf breeding method has poor predictability, poor repeatability, and little confidence in selection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Breeding of Linmai 2 Dwarf Sterile Germplasm

[0035] A. Sow the seed nursery and select dwarf plants.

[0036] The seeds of the Linmai 2 homozygous blue dwarf backcross population harvested in the same year were sorted by seed color, and the sorted white seeds were planted. Use row spacing 20 centimetres, 6 rows plots / ear row planters, empty the second and fifth rows of seeds in the bell box, form a large and small row pattern of 40cm / / 20cm, sow a columbine 4 rows in the seed selection area, and the row length is 25 meters. The selection area covers an area of ​​30m 2, sow about 3000 grains. After sowing and emergence, the field management is carried out according to the routine. In the coming spring, after the jointing of wheat, especially during the earing period, the dwarf plants were found, and a total of 24 dwarf scum plants were found. They were listed and marked, and the adjacent plants on both sides were cut off. The plants are pollinated, and the bagging i...

Embodiment 2

[0044] Breeding of Yan 2415 Dwarf Sterile Germplasm

[0045] A. Sow the seed nursery and select dwarf plants.

[0046] The seeds of the Yan 2415 homozygous blue dwarf backcross population harvested in the same year were sorted by seed color, and the sorted white seeds were planted. Use row spacing 20 centimetres, 6 rows plots / ear row planters, empty the second and fifth rows of seeds in the bell box, form a large and small row pattern of 40cm / / 20cm, plant a columbine 4 rows in the seed selection area, and the row length is 25 meters. The selection area covers an area of ​​30m 2 , sow about 3000 grains. After sowing and emergence, the field management is carried out according to the routine. In the coming spring, after the jointing of the wheat, especially during the earing period, we searched for the dwarf plants, and found 27 dwarf scum plants, which were listed and marked, and the adjacent plants on both sides were cut off, and the planted tobacco 2415 was used to pollina...

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Abstract

The invention discloses a method for breeding dwarf-male-sterile wheat germplasm, and belongs to the field of wheat breeding. The method comprises the steps that by performing character exchanging on 'blue dwarf male-sterile' of which a blue-grained character, a dwarf character and an anther abortion character are in linkage inheritance, a Taigu dominant male-sterile gene and a dwarf gene which is in linkage with a blue-grained gene break the linkage, and then white-grained dwarf-male-sterile plants are selected to serve as the dwarf-male-sterile germplasm to be bred. According to the method, a blue dwarf-male-sterile backcross population of any one variety can be bred into a dwarf-male-sterile backcross population; the good foreseeability is achieved on the characteristics and the like of the bred dwarf-male-sterile population, the breeding grasp is big, the repeatability is high, and the method is simple and convenient to operate.

Description

technical field [0001] The invention relates to the field of wheat breeding, in particular to a method for breeding dwarf sterile germplasm of wheat. Background technique [0002] Wheat breeding is becoming more and more difficult. In the difficult climbing, a large number of genes with good traits cannot be effectively preserved and lost, and some even disappear permanently, resulting in narrower and narrower genetic bases for bred varieties. Lack of germplasm resources and too narrow germplasm resources are the bottleneck factors restricting wheat breeding. [0003] Recurrent selection is a cyclical selection, hybridization, re-selection, and re-hybridization. Through mutual hybridization, beneficial genes scattered in different materials are gathered together to form a new group of population improvement and breeding methods. [0004] Using the reincarnation selection technology to form a reincarnation selection group of several varieties, it is possible to preserve many...

Claims

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Application Information

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IPC IPC(8): A01H1/04A01H1/02
Inventor 耿爱民代惠芹武利峰刘渤李捍东崔宝明张拥军马振萍杨婕王红霞鲍文辉于学军任如敏
Owner 滨州市作物研究所
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