Method for improving peanut hybridization efficiency

A peanut and efficiency technology, which is applied in the field of improving the hybridization efficiency of peanuts, can solve the problems affecting the development of the peanut industry, the increase in the cost of hybridization of peanuts, and the low hybridization efficiency, and achieves significant social and economic benefits. fruity effect

Active Publication Date: 2015-08-05
JILIN ACAD OF AGRI SCI
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, due to the increase in labor costs, there are fewer and fewer professionals who are proficient in peanut artificial hybridization technology, resulting in rising peanut hybridization costs, lower hybridization efficiency, and more and more fake hybrids, seriously affecting peanut breeding and peanut industry. development of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] (1) On May 10, the female peanut Jihua No. 4 was planted in the Gaotai Hybrid Pond of the Peanut Research Institute of Jilin Academy of Agricultural Sciences, planted in 4 holes with a distance of 7 inches, 2 seeds per hole, and one plant was selected for each hole after emergence. . The male parent Huayu No. 32 was planted flat under the hybrid pond, and 6 plants were planted. The male parent Huayu No. 32 was sown on May 8. When the main stem of the female plant Jihua No. 4 is 10 cm high, the main moss is applied to reduce the height of the main stem and promote the transfer of nutrients to the first and second branches. At the same time, spray 1ml of 4ppm 1.8% sodium nitrophenolate solution to increase the vitality of the plant . (2) 20 days after emergence, when the plant has 8 leaves, the peanut blooms, and a strong female parent plant is selected for flower repair and hybridization. (3) Candidate plants are emasculated at 4-6 pm and pollinated at 6-9 am the next ...

Embodiment 2

[0012] (1) On May 10th, plant the female peanut Jihua No. 6 in the Gaotai hybridization pond of the Peanut Research Institute of Jilin Academy of Agricultural Sciences, plant 8 holes with a distance of 7 inches, and 2 seeds per hole. After emergence, choose one plant in each hole . The male parent Jihua No. 11 was planted flat under the hybridization pond, with 10 plants planted, and the male parent Jihua No. 11 was sown on May 8. When the main stem of the female peanut Jihua No. 6 red plant is 10 cm high, the main moss is applied to reduce the height of the main stem and promote the transfer of nutrients to the first and second branches. At the same time, spray 2ml of 4ppm 1.8% sodium nitrophenolate solution to increase plant vitality. (2) 25 days after emergence, when the plant has 10 leaves, the peanuts will bloom, and a strong female parent plant will be selected for flower repair and hybridization. (3) Candidate plants are emasculated at 4-6 pm and pollinated at 6-9 am ...

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Abstract

A method for improving peanut hybridization efficiency is characterized by comprising the steps of (1) removing main bolts when peanut maternal plant stems are 10 centimeters high, and spraying 1ml to 2ml of 4ppm 1.8% compound sodium nitrophenolate solutions to increase plant activity; (2) selecting strong maternal plants to prune flowers to prepare for hybridization; (3) detasseling alternative plants at 4 p.m. to 6 p.m., and performing pollination at 6 a.m. to 9 a.m. the next morning, and spraying mixtures of 100pp,m GA and 2.5% urea in a mass ratio of 1:1 in ten minutes after pollination; (4) removing all flowers on the maternal plants before 10 a.m. every day after all combined pollination is over; (5) smearing 100ppm IAA through cotton balls onto appearing peanut pegs after 4 days of smearing treatment; (6) smearing 50ppm6-BA on the marked peanut pegs after 12 days of smearing treatment; (7) spraying foliage fertilizers at the initial stage of podding to promote the growth of plants. The method has the advantages that the hybridization success rate is improved, false hybrids are removed, the plump rate and the two-peanut rate are improved, and pods are promoted to be ripe.

Description

technical field [0001] The invention relates to a method for improving peanut hybridization efficiency, and belongs to the technical field of peanut breeding. Background technique [0002] Peanut is an important oil crop, economic crop and edible crop in China. my country is the largest peanut production, consumption and exporter in the world. Peanut plays an important role in my country's national economic development and is the main source of income increase for farmers in major production areas. way. [0003] Peanut breeding can be divided into introduction, systematic breeding, hybrid breeding, mutation breeding and biotechnology breeding. Among them, hybrid breeding (the so-called hybrid breeding is to use different genotypes of parents to carry out crossbreeding, through genetic recombination, so that the hybrid offspring will have different types of variation, and then through selective breeding, to breed new varieties) is the most common application at home and abroa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 高华援周玉萍刘海龙何禹璇王绍伦杨富军王曙文孙晓苹
Owner JILIN ACAD OF AGRI SCI
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