Structural comprehensive evaluation breeding method for cotton line

A comprehensive evaluation and structural technology, applied in the direction of botanical equipment and methods, material inspection products, measuring devices, etc., can solve the problems of long time, difficulty in screening and evaluating the properties of cotton strains with massive test data, data loss of target varieties, etc. To achieve the effect of quick screening

Inactive Publication Date: 2017-11-24
邯郸市农业科学院
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Problems solved by technology

There are many traits and large-scale investigations, and the massive experimental data generated have caused great difficulties in screening and evaluating the properties of cotton strains
In order to accurately screen out the target strains, it is necessary to compare the data item by item, which takes a long time, low efficiency, large errors, and even the target species will be lost in a large amount of data

Method used

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  • Structural comprehensive evaluation breeding method for cotton line
  • Structural comprehensive evaluation breeding method for cotton line
  • Structural comprehensive evaluation breeding method for cotton line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Taking Hanmian 559 and Hanmian 646 as examples for comprehensive evaluation.

[0060] Among them, CK is 41 of China Cotton Research Institute.

[0061] (1) Calculate the specific values ​​of the seed cotton yield, clothing percentage, single boll weight, boll number per plant, and seed cotton of the above cotton varieties through indoor seed testing.

[0062] Among them, the yield of seed cotton is the weight of tape cotton directly harvested in the cotton field, expressed in kilograms per mu; the percentage of cotton lint is the percentage of the weight of lint to the weight of seed cotton, and the weight of lint / weight of seed cotton*100%; The average single boll weight is the size of cotton bolls; the number of bolls per plant is the number of cotton bolls per cotton plant; the child refers to the weight of 100 cottonseeds with short staples.

[0063] (2) Detect the fiber length, specific strength and micronaire value of the above-mentioned cotton varieties through ...

Embodiment 2

[0080] The breeding steps and comprehensive evaluation process are the same as in Example 1.

[0081]Table 2 Comparison of different traits and S values ​​of the latest selected cotton lines

[0082]

[0083]

[0084] According to the above calculation, the S values ​​of Hanmian 6101, Hanmian 218, Hanmian 3008, YM111, Hanmian 3022, Hanmian 3011, Hanmian 3026, and Hanmian 6105 were all higher than those of the control CMI 41. The comprehensive data comparison is consistent with the actual performance of the new strains, and the comprehensive performance of the new strains' yield, quality, stress resistance and other agronomic traits is better than that of the control varieties, and has been reflected and verified in the production test. For example, the yield of YM111 variety is significantly higher than that of the control variety Zhongmiansuo 41, the single boll weight is high (up to 6.0-6.5 grams), the boll setting is strong, and the seed cotton yield can reach 410 kg;...

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Abstract

The invention provides a structural comprehensive evaluation breeding method for a cotton line. The method comprises the following steps: classifying thirteen representative characters of the cotton line, comparing, and carrying out comprehensive analysis, wherein the thirteen characters cover related characters such as yield, fiber quality and stress resistance of the cotton line, investigating and comparing index values of different characters, and comprehensively applying correlation coefficients between the index values of different characters and lint yield, so that different index characteristic values (S) which can represent, evaluate and breed the cotton line are obtained; and then comprehensively comparing the selected cotton line yield, quality and stress resistance results, and screening out a harmonized and unified cotton line with strong productive adaptability and better stability. The structural comprehensive evaluation breeding method for the cotton line can accurately and rapidly screen out a target line and objectively reflect comprehensive performance of the target line.

Description

technical field [0001] The invention relates to the technical field of cotton breeding, in particular to a structural comprehensive evaluation and breeding method for cotton strains. Background technique [0002] There are many factors to be considered in cotton breeding, and high yield alone does not meet the requirements of the market. Therefore, in the process of cotton breeding, breeding factors that can reflect high yield, strong stress resistance and good fiber quality will be considered as factors for screening new cotton varieties. There are many cotton traits that can reflect the above-mentioned breeding factors, such as traits that reflect lint yield factors, quality factors, stress resistance factors, etc. Each combination or target group will generate at least this set of data, and there may even be dozens or even Hundreds of derivative groups. Dozens or even hundreds of sets of data generated by standardized surveys, coupled with large-scale data generated by ...

Claims

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Application Information

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IPC IPC(8): G01N33/00A01G1/00
CPCG01N33/0098
Inventor 杨保新李翠芳梁丽鹏刘淑红袁松波
Owner 邯郸市农业科学院
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