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Breeding method for high-yield, early-maturing, high-quality, multi-resistant cotton

An early-maturing, high-yield technology, applied in botany equipment and methods, plant genetic improvement, application, etc., can solve the problems of difficulty in screening out new varieties and low efficiency

Active Publication Date: 2021-11-19
HENAN INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the breeding method of new cotton varieties still adopts the traditional hybrid breeding method. This method undergoes multiple generations of selective breeding to obtain varieties with the desired traits. One new breed with low efficiency

Method used

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  • Breeding method for high-yield, early-maturing, high-quality, multi-resistant cotton
  • Breeding method for high-yield, early-maturing, high-quality, multi-resistant cotton
  • Breeding method for high-yield, early-maturing, high-quality, multi-resistant cotton

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Embodiment 1

[0026] Such as figure 1 As shown, the breeding method of a kind of high-yielding, early-maturing, high-quality and multi-resistant cotton provided by the invention specifically comprises the following steps:

[0027] S1, parental selection

[0028] Collected 600 parental germplasm resources of upland cotton from different sources, different ecological regions and genetic backgrounds at home and abroad, and selected 23 in total in different sub-regions of the Yangtze River Basin Cotton Region, the Yellow River Basin Cotton Region, the Northwest Inland Cotton Region, and the Yellow River Basin Cotton Region test point.

[0029] Use phenotypic traits and molecular markers related to phenotypic traits to select candidate germplasm resources, screen out at least two excellent parents of high-yielding early-maturing varieties, early-maturing high-quality disease-resistant varieties, or high-yielding disease-resistant varieties, and select from the excellent parents Two parents wit...

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Abstract

The invention belongs to the technical field of cotton breeding, and discloses a high-yield, early-maturing, high-quality, multi-resistant cotton breeding method, including parental selection and assembly steps, low-generation large-group multi-ecological selection, individualized / differentiated selection identification, phenotypic traits The "trinity" combined method of rapid balanced selection with molecular marker-assisted selection as the main body selects excellent traits, and high-yielding, early-maturing, and multi-resistant single plants can be selected at the same time, and the breeding efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of cotton breeding, and in particular relates to a breeding method for high-yield, early-maturing, high-quality, multi-resistant cotton. Background technique [0002] Cotton is an important economic crop and occupies an important position in the development of the national economy. The three major cotton production areas in my country, including many different sub-regions, have complex ecological conditions and diverse planting systems. [0003] For example, the climate and ecological conditions are extremely unstable from year to year, and the frequency of natural disasters is relatively high. Drought, disease, especially low temperature or rainy and little light in the late growth period of cotton cause cotton to fall off and rotten bolls, which have an important impact on cotton production and seriously affect the yield. quality. Cotton varieties have the problems of delayed development, late maturity o...

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 王清连吴国峰韩振甫董涛韦春艳
Owner HENAN INST OF SCI & TECH