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Cotton breeding method using sub-red plant mutant from upland cotton

A red plant mutation and upland cotton technology, applied in the fields of application, botany equipment and methods, angiosperms/flowering plants, etc., can solve the problems of low net photosynthetic rate, breeding application limitations, disadvantages of leaf photosynthesis, etc., to improve cotton yield effect

Inactive Publication Date: 2008-10-01
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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  • Abstract
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Problems solved by technology

Many studies have shown that the classic red plant traits have potential mite resistance [12.13] , but the net photosynthetic rate of classic red leaf cotton leaves is lower than that of normal green leaves [14] , therefore, although the red-leaf cotton has advantages in resistance to mite pests, the breeding application of this trait is greatly limited due to its disadvantage in leaf photosynthesis

Method used

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  • Cotton breeding method using sub-red plant mutant from upland cotton
  • Cotton breeding method using sub-red plant mutant from upland cotton
  • Cotton breeding method using sub-red plant mutant from upland cotton

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Embodiment 1

[0052] This embodiment is based on the following two considerations, and is aimed at applying cotton breeding with the mutation of the cotton upland cotton strain and finally realizing industrialization.

[0053] 1. Taking the mutation of the sub-red strain as the marker trait of the variety

[0054] Because the mutant traits of the sub-red strain are incompletely dominant quality traits, if the germplasm with the mutant traits of the sub-red strain is used as a parent to cross with a large-scale popularized variety or a high-quality germplasm resource with specific traits, F1 is incompletely dominant . The segregation ratio of 1 (sub-red leaves) : 2 (light sub-red leaves) : 1 (green leaves) appeared in F2 segregation. Select excellent sub-red leaf single plants in the segregation population, test species, plant row test, and strain comparison test to obtain a line with excellent comprehensive properties and sub-red leaf marker traits, which can be used as a variety promotion...

Embodiment 2

[0070] The cotton breeding method that the present embodiment applies the mutation of upland cotton sub-red strain is slightly different from the process of the above-mentioned embodiment, as figure 2 As shown, the specific steps are as follows:

[0071] 1. In the first year, the F1 generation was obtained by crossing the upland cotton parents E046, JK19, E069, YK1107, W98 with excellent comprehensive traits and sub-red leaf marker lines E083, E084, E078;

[0072] 2. In the second year, carry out a multi-point comparative test on the hybrid F1 combination, and select the combination with excellent comprehensive properties;

[0073] 3. In the third year, dominant hybrid combinations with marker traits will participate in the regional test;

[0074] 4. Pass the regional test for the next 2-3 years, and the production test for another 1-2 years, and approve the recommended varieties;

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Abstract

The invention relates to a cotton breeding method using sub-red plant mutation of upland cotton which belongs to the technique field of agricultural breeding. In the method, the strain with the property of sub-red plant mutation is selected for breeding according to the leaf color property, the flower color property or the genetic gene property; the strain with the property of sub-red plants is taken as the parent strain to be interbred with another selection strain or variety; thereby the strain or variety with the property of sub-red plant mutation is obtained by seed selection. The cotton breeding method can be specifically applied to obtain a variety with the property of sub-red plant mutation, a fine hybrid cotton variety with good function of leaf photosynthesis or a male sterile line with the property of sub-red plants, etc., thus improving the output or the seed production efficiency of hybrid cotton, etc.

Description

technical field [0001] The invention relates to a breeding method, in particular to a cotton breeding method using the mutation of the upland cotton subreddish strain, and belongs to the technical field of agricultural breeding. Background technique [0002] A leaf color mutant of a plant refers to a variation in the leaf color phenotype. According to the leaf color phenotype, mutants can be divided into albino, yellow, light green, striped, spotted, purple leaf, red leaf and other types [1] . In recent years, the utilization value of leaf color mutants has received more and more attention. In crop breeding, leaf color variation can be used as a marker trait to simplify the breeding of improved varieties and hybrid production or as a specific breeding parent material [2、3、4] . In basic research, leaf color mutants are used to study plant photosynthesis, photomorphogenesis, hormone physiology, and disease resistance mechanisms. [5、6、7、8] Ideal materials for a series of p...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04A01H5/00
Inventor 陈旭升狄佳春许乃银刘剑光肖松华
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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