A screening method for high-yielding cotton varieties

Abstract

The invention belongs to the field of agriculture, and particularly relates to a screening method for a high-yield cotton variety. The screening method includes the steps that seeds are detinted, 100 seeds growing full after being detinted are selected, cottonseed kernel and cottonseed hull peeling is conducted on the 100 detinted full seeds, and the high-yield cotton variety is selected according to the weight ratio of cottonseed hulls and cottonseed kernels. The screening method for the high-yield cotton variety has high practicability and operability, screening results are stable and reliable, the high-yield cotton variety can be screened out fast and accurately through the method, the screened cotton variety can provide a basis for a breeder to select a cotton parent to prepare combinations, the breeding cycle is shortened, breeding blindness is reduced, and therefore huge economic benefits are obtained.

Description

technical field [0001] The invention belongs to the field of agriculture, in particular to a screening method for high-yield cotton varieties. Background technique [0002] my country's annual cotton planting area is about 60 million mu. Cotton is not a simple economic crop. The entire industrial chain includes planting, processing, commerce and other links, involving 100 million farmers, 20 million workers and a large number of tertiary industry practitioners. my country's population base is large, and both household consumption and industrial demand are on the rise, and cotton is an important material for military and civilian use. We must ensure self-sufficiency. In 2016, the total cotton planting area in China was 48.17 million mu, reaching the lowest point since the founding of New China. There are fewer and fewer cotton fields. In order to maintain the basic needs of self-sufficiency, my country's cotton production must ensure that new varieties with high and stable y...

AI Technical Summary

Problems solved by technology

Cotton has many varieties and miscellaneous varieties, and cannot be effectively managed in a large area, which increases labor procedures and wastes financial and material resources, which leads to the psychology of cotton farmers not to grow cotton when they can grow other crops, and the cotton planting area decreases year by year

[0004] Cotton yield is a trait controlled by quantitative trait genetics, which is greatly affected by both genes and the environment. Currently, scientists have not excavated and cloned the genes that effectively control cotton yield. It will take a long time to cultivate high-yield and stable cotton varieties.

At present, there is a shortage of main cotton varieties in my country, and it is still difficult to select suitable parents to prepare high-yield combinations, which prolongs the breeding process

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