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Breeding method of high-oleic-acid drought-tolerant peanuts

A technology of high oleic acid and peanuts, applied in the direction of botany equipment and methods, applications, plant genetic improvement, etc., can solve the problems of no irrigation conditions, affecting peanut yield, poor irrigation conditions, etc., to increase planting area and fast measurement speed , the effect of high accuracy

Active Publication Date: 2020-06-23
河南益人花生科技研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the other hand, most of the peanut production areas in my country are still planted in dry land such as hillsides, with poor or no irrigation conditions, which seriously affects the yield of peanuts. Drought is one of the main limiting factors affecting the yield and quality of peanuts in my country.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The present embodiment provides a kind of breeding method of high oleic acid drought-tolerant peanut, comprising the following steps:

[0030] (1) Select a drought-tolerant peanut variety as the female parent, and select a high-oleic-acid peanut variety as the male parent for hybridization to obtain drought-tolerant and high-oleic-acid F1 generations;

[0031] (2) The oleic acid content and drought tolerance were detected from the F1 generation, and the lines with an oleic acid content of more than 80% and able to tolerate 15% PEG 6000 stress were screened out to obtain the F2 generation by selfing.

[0032] (3) From the F2 generation, the lines with an oleic acid content of more than 80% and the ability to tolerate 15% PEG 6000 stress were selected and self-crossed to obtain the F3 generation.

[0033] (4) From the F3 generation, the strains with a stable oleic acid content of more than 80% and the ability to withstand 15% PEG 6000 stress were screened again to obtain ...

Embodiment 2

[0038] The present embodiment provides a kind of breeding method of high oleic acid drought-tolerant peanut, comprising the following steps:

[0039] (1) Select a drought-tolerant peanut variety as the female parent, and select a high-oleic-acid peanut variety as the male parent for hybridization to obtain drought-tolerant and high-oleic-acid F1 generations;

[0040] (2) The oleic acid content and drought tolerance were detected from the F1 generation, and the lines with an oleic acid content of more than 80% and able to tolerate 15% PEG 6000 stress were screened out to obtain the F2 generation by selfing.

[0041] (3) From the F2 generation, the lines with an oleic acid content of more than 80% and the ability to tolerate 15% PEG 6000 stress were selected and self-crossed to obtain the F3 generation.

[0042] (4) From the F3 generation, the strains with a stable oleic acid content of more than 80% and the ability to withstand 15% PEG 6000 stress were screened again to obtain ...

Embodiment 3

[0047] The present embodiment provides a kind of breeding method of high oleic acid drought-tolerant peanut, comprising the following steps:

[0048] (1) Select a drought-tolerant peanut variety as the female parent, and select a high-oleic-acid peanut variety as the male parent for hybridization to obtain drought-tolerant and high-oleic-acid F1 generations;

[0049] (2) The oleic acid content and drought tolerance were detected from the F1 generation, and the lines with an oleic acid content of more than 80% and able to tolerate 15% PEG 6000 stress were screened out to obtain the F2 generation by selfing.

[0050] (3) From the F2 generation, the lines with an oleic acid content of more than 80% and the ability to tolerate 15% PEG 6000 stress were selected and self-crossed to obtain the F3 generation.

[0051](4) From the F3 generation, the strains with a stable oleic acid content of more than 80% and the ability to withstand 15% PEG 6000 stress were screened again to obtain t...

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Abstract

The invention discloses a breeding method of high-oleic-acid drought-tolerant peanuts, and belongs to the field of plant breeding. The method includes the following steps: (1) selecting a drought-tolerant peanut variety as a female parent, selecting a high-oleic-acid peanut variety as a male parent, and performing crossing so as to obtain an F1 generation with drought tolerance and high content ofoleic acid; (2) removing false hybrid from the F1 generation, and performing selfing so as to obtain an F2 generation; (3) screening single plants with high content of oleic acid and drought tolerance from the F2 generation, and performing selfing so as to obtain an F3 generation; (4) selecting stable and single plants with high content of oleic acid and drought tolerance from the F3 generation again, performing selfing so as to obtain an F4 generation, and carrying out variety tests on the plants of the F4 generation; and (5) performing selfing on the F4 generation for 4 consecutive generations so as to obtain an F5 generation, an F6 generation, an F7 generation and an F8 generation sequentially, wherein the F8 generation is the novel peanut variety with high content of oleic acid and drought tolerance. The novel peanut variety with both high content of oleic acid and drought tolerance is bred, and the technical problem is solved that high-oleic-acid peanuts are planted in hilly landand other dry areas.

Description

technical field [0001] The invention belongs to the field of plant breeding, and in particular relates to a breeding method for high-oleic-acid drought-tolerant peanuts. Background technique [0002] my country is the world's largest peanut producer, consumer and exporter. The total output of peanuts accounts for 50% of the total output of oil crops in the country, and the total output ranks first among all oil crops, accounting for 43% of the total output of peanuts in the world, ranking first in the world. Therefore, peanuts have an important position and role in my country's national economy. [0003] Peanut oil mainly contains two fatty acids, namely oleic acid and linoleic acid. Oleic acid is the main fatty acid in peanut oil, accounting for 39% to 49% of the total peanut fatty acid. Oleic acid has high nutritional value. It can reduce harmful cholesterol in human body lipid metabolism, but maintain the level of beneficial cholesterol, thereby slowing down Atheroscle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 陈耀全刘广军
Owner 河南益人花生科技研究院
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