Breeding method of high-lint-percent and high-quality machine-harvested cotton variety Zhongmiansuo 96A

Abstract

The invention relates to the technical field of breeding, in particular to a breeding method of high-lint-percent and high-quality machine-harvested cotton variety Zhongmiansuo 96A. The breeding method comprises the following steps of (1) preparing a parent combination, specifically selecting a variety (strain) with strong general combining ability and large genetic background difference as a parent; (2) conducting three stages of single plant selection, specifically, selecting field characters, yield characters and quality characters; (3) accelerating breeding in a four-season breeding garden, and accelerating the breeding process by utilizing the natural climate of Hainan Sanya; (4) conducting advanced line plant row selection, and conducting selection and identification according to thefield characters, the yield characters, the quality characters and disease resistance; and (5) carrying out multi-year multi-point variety comparison tests to obtain a breeding target strain. According to the breeding method, the problem that high lint percent and high quality of the cotton variety are difficult to coexist is solved, the breeding time is effectively shortened, and the high-lint-percent and high-quality machine-harvested cotton variety Zhongmiansuo 96A is cultivated.

Description

technical field [0001] The invention belongs to the technical field of cotton breeding, and in particular relates to a breeding method of Zhongmian Institute 96A, a high-cloth, high-quality machine-picked cotton variety. Background technique [0002] The degree of mechanization is the benchmark to measure the level of a country's agricultural modernization development. Some developed countries such as the United States and Australia have fully mechanized their cotton production operations. Mechanized cotton planting is an inevitable trend in the development of the cotton industry. However, the level of mechanization of cotton in my country is relatively low. One of the main reasons is that the main varieties produced in cotton fields cannot meet the requirements of mechanized harvesting. The mechanical harvesting of these varieties has more impurities, which leads to a decline in the quality of cotton fibers. Cultivating new varieties of machine-picked cotton with high yield...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, in the selection of parental materials, simple hybridization between varieties is adopted, the genetic background is not rich enough, and it is difficult to break the tight linkage between the genes controlling the clothing content and fiber quality

Or a simple combination of strains, with a wide range of genetic backgrounds and a large coefficient of variation, it is easy to ignore excellent strains in large-scale field selection

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