A kind of multicolored rice two-line hybrid rice breeding method

Abstract

The invention discloses a method for breeding two-line hybrid rice of colorful rice. The method comprises: using colored rice B as the male parent and two-line sterile line S as the female parent to carry out hybridization and backcrossing, and performing two-line multicolored rice breeding. Breeding of sterile lines; using colored rice C as the male parent and restorer line R as the female parent, carry out hybridization and backcrossing, and select the colorful rice restorer line; and then through the selection of heterosis, rice quality, yield and resistance A new combination of five-color rice hybrid varieties was obtained through screening; finally a five-color rice two-line hybrid system was constructed. The method of the present invention provides a natural multicolored rice hybrid rice, which is significantly different from conventional colored rice varieties or hybrid varieties of a single color produced at present, and changes the so-called multicolored rice in the market that is formed by mixing various colored rices. Current status: It has more complete nutrition and more uniform quality, which is conducive to cooking, eating and deep processing applications.

Description

technical field [0001] The invention relates to the technical field of rice breeding, in particular to a method for breeding two-line hybrid rice of multicolored rice. Background technique [0002] Colored rice refers to the color of brown rice, mainly black, purple, red, yellow, green and so on. Colored rice is brown rice because it contains seed coat, rice germ and aleurone layer, so its protein, fat, amino acid, vitamin, mineral trace element content is significantly higher than that of white rice (polished rice) eaten daily, and it is rich in natural pigments and various physiologically active substances. [0003] At present, people's lifestyles are significantly different, and the dietary structure has undergone tremendous changes. Various chronic diseases such as "three highs", atherosclerosis, coronary heart disease, and cancer occur frequently year by year. It has become a fashion to eat well, eat well, and eat healthy pursuit of health. Colored rice has become a ...

AI Technical Summary

Problems solved by technology

Whether it is a conventional variety of colored rice or a hybrid variety, it is colored rice of a single color. The so-called multicolored rice on the market is a mixture of various colored rice. Significantly different from length and length), resulting in significant differences in quality and taste, which is not conducive to cooking and deep processing applications