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Slective seeding method for super-high yield peanut

A technology for peanuts and varieties, applied in plant products, botanical equipment and methods, angiosperms/flowering plants, etc., can solve problems such as difficulty in realizing varieties with breakthrough yields, and achieve the effect of strong operability

Inactive Publication Date: 2010-02-17
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
  • Slective seeding method for super-high yield peanut
  • 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 desirable traits is represented by 3, a variety with 4 desirable traits is represented by 4, and so on, and a variety with 5 desirable traits is represented by 5. × means hybridization, → means stable selection after more than 3 generations of selfing, and 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-stable selection, the bred with complete ideal traits, compared with the control Shanshanyou 523 is a variety with an increase of more than 15%, which is referred to as 3×3→5 for short.

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

[0025] The female parent, Yueyou 32, is a peanut strain bred by Guangdong Academy of Agricultural Sciences. Its main advantages are erect, large fruit, 100-fruit we...

Embodiment 2

[0036] 3×4→5

[0037] or 4×3→5

[0038] The female parent 1 with 3 ideal traits is crossed with the male parent 2 with 4 ideal traits (including 2 traits that parent 1 lacks), and after more than 3 generations of self-stable selection, bred with complete ideal traits, Varieties with an increase of more than 15% compared with the control species are referred to as 3×4→5 for short.

[0039] Pearl bean-shaped peanut variety Tainan 12(♀)×Yueyou 79 →Self-bred stability and directional selection for the third generation→High-yielding new variety (line) 01-7:

[0040] Pearl bean type peanut variety Yueyou 79(♀)×Tainan 12 →Self-bred stability and directional selection for the third generation→High-yielding new variety (line) 01-8:

[0041] 1. Pearl bean-shaped peanut variety Tainan 12 is a variety imported from Taiwan. Its main characteristics are: upright, short plant type, 48cm high main stem in spring, large fruit, 210g of 100g, and 3 of the ideal traits. The disadvantage is...

Embodiment 3

[0055] Further improvement of ultra-high-yield new strains

[0056] 3×5→5

[0057] or 5×3→5

[0058] Parent 1 with 3 ideal traits is crossed with parent 2 with 5 ideal traits (including 2 traits that parent 1 lacks), and after more than 3 generations of self-stable selection, a breed with complete ideal traits and higher yield than the control species is bred More than 15% of varieties.

[0059] In Example 2, the new line 01-7 has complete ideal traits of high yield, but its resistance to bacterial wilt is poor. In order to improve the resistance of 01-7 without affecting the high yield, the bacterial wilt resistant variety Yueyou 200 was selected together with it hybridize. Yueyou 200 has the characteristics of being upright and having more fruit per plant, but the main stem is 58cm tall, the fruit is small, and the fruit weighs 148g. The number of green leaves on the main stem is less than 4 pieces when harvested. The crossing of Yueyou 200 and 01-7 can improve the defic...

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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 singleplant; 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 peanut breeding, and specifically refers to a method for breeding high-yielding peanut varieties. Background technique [0002] Peanut is the main oil crop in my country. High-yield breeding has always been the main goal and eternal theme of peanut breeding. Since the improvement of peanut varieties contributes more than 30% to the yield and total output, countries all over the world attach great importance to the selection and breeding of peanut varieties and increase the input 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 improvement of my country's peanut production. At present, there is an urgent need for high-yielding peanut varieties that have a real breakthrough in yield. [0003] The current research results suggest that high-yield peanut varieties have concentra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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