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A kind of breeding method of U-shaped high-yielding and disease-resistant peanut varieties

A high-yield, disease-resistant, and breeding method technology, applied in the field of breeding, can solve the problems of uneven pod size, difficulty in drying, and unsuitability for peanut cultivation habits, and achieve the effect of shortening the breeding cycle

Inactive Publication Date: 2019-04-23
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

But the shortcoming of this kind of variety is: (1) pod ripening period is inconsistent, and pod size is uneven;
Its disadvantages are: (1) the number of fruits per plant is small, the yield is low, and the potential for increasing yield is not large; (2) when the plant is harvested, the whole plant lies on the ground, and the pods directly contact the field soil, which is not easy to dry, but it is easy to be infected by Aspergillus flavus

Method used

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  • A kind of breeding method of U-shaped high-yielding and disease-resistant peanut varieties
  • A kind of breeding method of U-shaped high-yielding and disease-resistant peanut varieties

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Experimental program
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Embodiment 1

[0055] Embodiment 1: a kind of breeding method of U-shaped high-yield and disease-resistant peanut varieties, comprising the following steps:

[0056] (1) In the spring of 2008, from the existing peanut germplasm resources, select the local, early-maturing creeping germplasm-"Dapu Climbing Dou" as the female parent, a local high-yield potential variety, and plant up to 15 erect early-maturing varieties per plant 20 hybrid seeds of the F0 generation were obtained through manual cross-pollination with "Fushi" as the male parent; 421 F1 generation seeds were obtained by single seed sowing, self-crossing, mixed harvesting, drying and peeling of the F0 generation seeds;

[0057] (2) Sow the F1 generation obtained in step (1), self-seed, mix and harvest, keep all the seeds, and obtain 15,000 peanut F2 generation seeds;

[0058] (3) Sowing the F2 generation seeds obtained in step (2) by single grain, harvesting and removing vine type, erect material, only selecting and retaining the ...

Embodiment 2

[0073] Embodiment 2: a kind of breeding method of U-shaped high-yield and disease-resistant peanut varieties, comprising the following steps:

[0074] (1) In the autumn of 2013, "UP-62" was selected from the "U-shaped" core parent material library as the female parent, and the high-yield and disease-resistant variety "Yueyou 7" was selected as the male parent, and cross-pollinated by artificial cross-pollination to obtain a hybrid 19 F0 generation seeds; F0 generation seeds were sown single-grain, self-crossed, mixed harvested, harvested after maturity, dried and peeled, and 436 F1 generation seeds were obtained;

[0075] (2) Sow the F1 generation obtained in step (1), self-seed, mix and harvest, keep all the seeds, and obtain 15,000 peanut F2 generation seeds;

[0076] (3) Sowing the F2 generation seeds obtained in step (2) by single grain, harvesting and removing vine type, erect material, only selecting and retaining the plant type with "U-shaped" traits, and obtaining F3 w...

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Abstract

The invention discloses a cultivation method for a U-shaped high-yield disease-resistant peanut variety and relates to a breeding method. The cultivation method is characterized in that at first, a prostrate peanut variety and an erect peanut variety are hybridized to create a U-shaped peanut variety, a parent library of the U-shaped peanut variety is established, then the created U-shaped peanut variety and an erect high-yield disease-resistant variety are subjected to tissue culture, and the high-yield disease-resistant U-shaped variety is selected from segregative generations. As prostrate peanuts and erect peanuts are integrated, the breeding cycle of U-shaped high-yield peanuts can be greatly shortened, technical problems of the U-shaped high-yield peanut variety are solved, and the cultivation method has an important application value.

Description

technical field [0001] The invention relates to a breeding method, in particular to a method for cultivating U-shaped high-yield and disease-resistant peanut varieties. Background technique [0002] Peanut is the main oil crop widely planted all over the world, and it is also the main oil crop in my country. In terms of plant type, peanut cultivars are mainly divided into three types: erect, semi-climbing and trailing. Most of the peanut varieties in the United States and South American countries are vine varieties suitable for large-scale mechanized operations, while the peanut varieties currently planted in large areas in my country are all erect varieties. [0003] Vine varieties, as the name implies, refer to the branches of all branches of peanuts growing along the ground, and the peanuts form pods from the roots of the branches to the middle, and even the ends. The biggest advantages of this type of varieties are: (1) The range of pods is very large Wide, the number ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 梁炫强陈小平李海芬鲁清洪彦彬钟哲黄志坚
Owner CROP RES INST GUANGDONG ACAD OF AGRI SCI
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