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Slective seeding method for super-high yield peanut

An ultra-high-yield, peanut-based technology, applied in plant products, botany equipment and methods, angiosperms/flowering plants, etc., can solve the problems that varieties with breakthrough yields are difficult to achieve, and achieve the effect of strong operability

Inactive Publication Date: 2007-11-14
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

The currently bred peanut varieties are biased towards the selection of a single index. Since the yield of peanuts is controlled by multiple genes, it is difficult to breed varieties with a breakthrough in yield in a short period of time.

Method used

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  • Slective seeding method for super-high yield peanut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 3×3→5

[0022] A variety with 3 ideal traits is represented by 3, a variety with 4 ideal traits is represented by 4, and so on, a variety with 5 ideal traits is represented by 5. × means cross, → means stable selection after more than 3 generations of selfing, the following are similar.

[0023] For example, parent 1 with 3 ideal traits is crossed with parent 2 with 3 ideal traits (including 2 traits that parent 1 lacks). After more than 3 generations of self-crossing and stable selection, bred to have complete ideal traits, compared to the control The variety whose production of Shanyou 523 increased by more than 15% is referred to as 3×3→5.

[0024] For example, the female parent Yueyou 32 was crossed with the male parent Shanyou 27, and a new super high-yield line 02-369 was developed.

[0025] The female parent Yueyou 32 is a peanut line bred by the Guangdong Academy of Agricultural Sciences. The main advantage is that it stands upright, the fruit is large, the fruit we...

Embodiment 2

[0036] 3×4→5

[0037] Or 4×3→5

[0038] The maternal parent 1 with 3 ideal traits is crossed with the male parent 2 with 4 ideal traits (including 2 traits lacking in parent 1). After more than 3 generations of self-stable selection, a complete ideal trait is cultivated. Varieties with a yield increase of more than 15% over the control species are referred to as 3×4→5 for short.

[0039] Pearl bean type peanut variety Tainan Stable self-bred generation and directional selection→Super high-yield new variety (line) 01-7:

[0040] Pearl bean type peanut variety Yueyou Stable self-bred generation and directional selection→Super high-yield new variety (line) 01-8:

[0041] 1. Pearl bean type peanut variety Tainan 12 is a variety introduced from Taiwan. Its main characteristics are: erect, short plant type, spring planting main stem is 48cm high, fruit is large, fruit weighs 210 grams, and has 3 of the ideal traits. The disadvantage is that the number of full fruits per plant is small...

Embodiment 3

[0055] New super high-yield strains are further improved

[0056] 3×5→5

[0057] Or 5×3→5

[0058] The parent 1 with 3 ideal traits is crossed with the parent 2 with 5 ideal traits (including 2 traits that the parent 1 lacks). After more than 3 generations of self-crossing and stable selection, it is cultivated with complete ideal traits, which is more productive than the control species. 15% or more varieties.

[0059] In Example 2, the new line 01-7 has the ideal traits for complete super high yield, but the resistance to bacterial wilt is poor. In order to improve the resistance of 01-7 without affecting the super high yield, the bacterial wilt resistant variety Yueyou 200 was selected. Hybrid with it. Yueyou 200 has the characteristics of standing upright and a large number of full fruits per plant, but the main stem is 58cm, taller, and the fruit is small. The fruit weighs 148 grams, and the number of green leaves on the main stem is less than 4 when harvested. Hybridization ...

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Abstract

The present invention relates to a method for selecting and breeding ultrahigh-yield peanut species. Said method includes the following steps: using parent 1 and parent 2 and making them implement hybridization to obtain F1 generation; utilizing autocopulation of more than three generations to attain stabilization, in the stable generation using ideal form as object to directionally select single plant; making the single plant undergo the process of one-generation autocopulation, then further selecting line with complete ideal form so as to obtain the invented ultrahigh-yield line.

Description

Technical field [0001] The invention belongs to the technical field of flowering and breeding species, and specifically refers to a method for selecting and breeding super-high-yield peanut varieties. Background technique [0002] Peanuts are the main oil crops in my country, and high-yield breeding has always been the main goal of flower breeding and the eternal theme of flower breeding. Since the improvement of peanut varieties contributes more than 30% to the yield and total yield, countries all over the world attach great importance to the selection and breeding of peanut varieties and increase the investment of funds. During the Ninth Five-Year Plan period, some high-yield and disease-resistant peanut varieties were selected and bred in my country, which played an important role in the increase of my country's peanut output, but the increase in the yield of these varieties was not large (most of the varieties were flat or increased by about 5%). At present, there is an urgen...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H5/00
Inventor 周桂元梁炫强
Owner CROP RES INST GUANGDONG ACAD OF AGRI SCI
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