Breeding method for high-quality brown fibre new species of cotton

Abstract

The invention provides a high quality, large boll, high yield brown color cotton (brown fiber) breeding method. The semi-wild cotton is used as basis material and the brown color cotton strain brown 1-52 (brown flocculation No1 improvement series) with better comprehensive character is bred. The brown 1-52 is used as male parent to hybridize with the white cotton strain s9108 with excellent fiber quality and large boll. After individual system selection for several years, a series of high quality brown color cotton new strains are bred, comprising S9B12, S9B11 or like. The bred brown color cotton not only increases fiber quality of brown color cotton, but also the fiber yield, single boll weight, ginned cotton yield are also greatly increased, thereby solving the problem that the prior color cotton fiber has bad quality and low ginned cotton yield.

Description

technical field [0001] The invention relates to a breeding method for a new cotton variety, in particular to a breeding method for a new cotton variety with high quality, big boll, high yield and brown fiber. Background technique [0002] The cotton fibers of colored cotton have natural colors, and there is no need for chemical treatments such as dyeing, bleaching, and scouring during the textile process. production cost. Among the more than 7,000 cotton germplasm resources in the China Cotton Medium-term Bank, there are more than 170 colored cotton germplasms collected (more than 140 domestic germplasms and more than 30 foreign germplasms), of which 85 are upland cotton (green cotton 27 parts, 58 parts of brown cotton), 58 parts of 6 strains of upland cotton semi-wild species (brown), 27 parts of brown Asian cotton, 6 parts of brown sea-island cotton, and 2 parts of brown African cotton. However, these colored cotton germplasms have low yield, poor quality, and unstable f...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of brown colored cotton breeding method for above-mentioned deficiency, this method can bred a series of high-quality, big boll, high-yielding brown colored cotton new germplasm, to overcome the poor quality of brown colored cotton fiber at present, the clothes are divided low problem

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