Breeding method of a high lint, high-quality machine-picked cotton variety Zhongmian Institute 96a

Abstract

The invention relates to the technical field of breeding, in particular to a breeding method for a high lint, high-quality machine-picked cotton variety Zhongmian Institute 96A. The method includes the following steps (1) the configuration of the parental combination, selecting the variety (line) with strong general combining ability and large genetic background difference as the parent; (2) three stages of individual plant selection, the field traits, yield traits and quality. (3) The four-season breeding nursery accelerates the breeding process, taking advantage of the natural climate of Sanya, Hainan, to speed up the breeding process; (4) The selection of high-generation plants and rows is based on the selection and identification of field traits, yield traits, quality traits and disease resistance; (5) Multi-point comparison test for many years: Obtain the breeding target line. The invention solves the problem that high lint and high quality of cotton varieties are difficult to coexist, effectively shortens the breeding time, and cultivates a high lint and high-quality machine-picked cotton variety Zhongmian Institute 96A.

Description

technical field [0001] The invention belongs to the technical field of cotton breeding, and in particular relates to a breeding method for high lint and high-quality machine-picked cotton variety Zhongmian Institute 96A. Background technique [0002] The level of mechanization is a benchmark for measuring the development level of a country's agricultural modernization. Some developed countries such as the United States and Australia have completely mechanized cotton production operations, and mechanized cotton planting is an inevitable trend in the development of the cotton industry. However, the level of cotton mechanization in my country is relatively low, one of the main reasons is that the main varieties of cotton produced in the field cannot meet the requirements of mechanized harvesting. Cultivating new machine-picked cotton varieties with high yield, high lint content, disease resistance, and excellent fiber quality is of great significance to stabilizing the developm...

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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