Breeding method of slowly faded sweet pepper pigment restorer with high color value

Abstract

The invention provides a breeding method of a slowly faded sweet pepper pigment restorer with a high color value. The method comprises plant breeding and primary selection, secondary selection and final selection of the restorer. In the method, a sweet pepper pigment material having a restoration gene linked marker is screened out by using a PR-CAPS molecular marker; by taking the sweet pepper pigment material as a male parent and taking a 100% cytoplasmic male sterile line as a female parent, a hybrid composition is prepared, and hybrid seeds are subjected to fertility identification; a restorer is bred through methods such as continuously back crossing; and meanwhile, the slowly faded restorer with the high color value is further bred according to the color value and a fading degree of afruit. The sweet pepper pigment restorer is bred in combination with technologies such as molecular marker aided screening, hybridization, continuously back crossing and pepper color value and fadingmeasuring methods. Sweet pepper pigment hybrid seeds which have the high color value and are difficult to fade and good in processing character can be prepared by taking the male sterile restorer bred according to the method provided by the invention as the male parent, and the method has significance for accelerating the breeding progress.

Description

technical field [0001] The invention belongs to the technical field of pepper breeding, in particular to a method for selecting and breeding a sweet-pigmented pepper restorer line with high color value and slow fading. Background technique [0002] Capsicum (Capsicum annuum L.) is a capsicum plant of the Solanaceae family, which is an annual or perennial herb. The origin is the tropical region of Central Latin America, the country of origin is Mexico, and it was introduced to China in the late Ming Dynasty. With the development of my country's commodity economy and the adjustment of the agricultural industry structure, the planting area of ​​pepper has expanded year by year, and it has become a fist product to revitalize the rural economy and enhance the development of the agricultural industry. In recent years, my country has become the world's major pepper exporter, ranking first in the world in terms of export volume. Among them, the dried peppers produced in my country...

AI Technical Summary

Problems solved by technology

[0008] During the drying process, the sweet pepper will fade due to direct sunlight and storage temperature, resulting in a decrease in the recovery of capsicum red pigment, thereby reducing the benefit. Therefore, it is very important to breed peppers that fade slowly

At present, there is no unified test standard and process method in the research of pepper fading. It is simply to put the pepper in direct sunlight and judge by observing the fading situation. Because there is no quantification of the light intensity, temperature, air circulation and other factors of the test environment, the test results Same lack of repeatability and comparability of different units

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