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High oil peanut quality breeding method

A high-oil and peanut technology, applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems of difficult high-oil gene integration, etc., and achieve the effect of short breeding time, fast measurement speed, and small breeding blindness

Inactive Publication Date: 2005-07-06
CROP RES INST GUANGDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that it is difficult for conventional peanut breeding technology to integrate the high oil gene in the germplasm resources into the production varieties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Firstly, according to the requirements of peanut quality breeding objectives, the parental combinations of germplasm combinations with good comprehensive traits and high oil content were selected. Good comprehensive traits of a variety refer to good yield traits, strong disease resistance and adaptability, and the plant type, number of branches, pod shape and size meet the requirements of the production variety. It is easier to obtain high-oil hybrid offspring by using germplasm with high oil content as parents. Huayu 17 was used as the male parent, and Shanyou 71 was used as the female parent. Huayu 17 was from the Peanut Research Institute of Shandong Province, and Shanyou 71 was from the Shantou Agricultural Science Institute of Guangdong Province. The hybrids were arranged according to the parental combination according to the field experiment design method of conventional peanut breeding, and single seeds were planted in the field. 1 Generations do not make any se...

Embodiment 2

[0020] Yueyou 00 / 81 was used as the male parent, and Yueyou 00 / 35 was used as the female parent. Both parents came from the Crop Research Institute of Guangdong Academy of Agricultural Sciences. in F 1 Generations do not make selections. Based on the selection criteria of vigorous growth, good plant type, high yield, good pod shape, and uniform grain type, the generation F was isolated in the early stage. 2 One excellent individual plant was screened out from the population; the oil content of 9 seeds of the excellent individual plant was measured by a non-destructive method, the average oil content of the individual plant was 50.39%, and one seed with an oil content higher than 55% was screened out seed. The selected high oil seeds will be in F 3 Continue to plant single seeds for generations, and obtain 22 seeds at the time of harvest, with an average oil content of 55.99% per plant; 14 high-oil seeds with an oil content higher than 55% were screened out by using the meth...

Embodiment 3

[0023] When applying the breeding method of the present invention, in order to expand the breeding scale and simplify the breeding program simultaneously, the single-grain propagation method of conventional peanut breeding can be referred to. The main characteristic of the single seed transmission method is that in the low generation (F 1 ~F 2 ) only take a small amount of seeds from each plant, and plant them in combination until the high generation (F 5 ~F 6 ) to select strains to obtain stable pure lines.

[0024] The hybrid seeds obtained from the cross combination of Shanyou 71 × Xinhui Xiaoli and Yueyou 99 / 100 × Shanyou 71 were planted in the field. Xinhui Xiaoli is a local farm variety in Xinhui City, Guangdong Province, and Yueyou 99 / 100 is a The line bred by the Crop Research Institute of the Academy of Agricultural Sciences, Shanyou 71 comes from the Shantou Agricultural Science Institute of Guangdong Province. in F 1 No selection is made. Hybrid offspring in F...

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Abstract

The invention provides a high oil peanut quality breeding method which comprises, combining parental generation combination by selecting seeds with good comprehensiveness and high oil content, selecting fine strains at early stage generation, which is high yield pressure screen selecting, determining oil content in each seed of the single strain, screening seeds with high oil content for cultivation on next generation, which is high oil pressure screening, finally selecting fine single strain and determining oil content for each seed of the fine single strain for different separated generations, and accomplishing high yield and high oil pressure selection and oriental cultivation.

Description

technical field [0001] The invention belongs to the technical field of sexual hybrid breeding of crops, in particular to a quality breeding method for high-oil peanuts. Background technique [0002] Genetic improvement of peanuts using sexual cross breeding technology has achieved great success in increasing yield, enhancing disease resistance and adaptability, etc., but progress in improving peanut quality has been slow and the results have been extremely limited. The reasons for this situation Breeders can directly select traits such as yield and disease resistance in the segregation generation, but cannot select quality traits, so they cannot conduct directional breeding. Therefore, it is difficult to improve the quality traits of peanuts through sexual cross breeding. The current breeding techniques aimed at improving peanut oil content are limited to the assembly of high-oil parent combinations and the indirect selection of hybrid progenies bas...

Claims

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Application Information

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IPC IPC(8): A01H1/02
Inventor 曹干
Owner CROP RES INST GUANGDONG ACAD OF AGRI SCI
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