Cultivation method of selenium-rich rice

Abstract

The invention discloses a method of cultivating selenium-rich black rice with special germplasms. The method includes: subjecting a female parent of Australian black rice 14928 and a male parent of 95-5031 as a male parent to hybridization; subjecting a female parent of hybrid F1 and a female parent of tetraploid hard-grain rice 190268 to hybridization, and selecting a new line dwarf 8 from generation F3 through F0 young embryo saving and indoor addition; subjecting a female parent of Luozhen NO. 1 and a male parent of the new line dwarf 8 to hybridization, subjecting the hybrids of generationF1 to anther culture, treating callus through a slow-radiation technique, and transplanting regrown plants to a large field; breeding a new black-rice line from offspring, selecting selenium-rich black rice Jizi 439. The methods such as convectional breeding, haploid breeding, slow radiation and distal hybridization for young embryo saving are combined to modify a radiation method, thereby cultivating the black rice novel germplasm having high yield, wide applicable range, rich organic selenium, suitability for diabetics to eat and good character inheritance stability.

Description

technical field [0001] The invention belongs to the field of agriculture, and in particular relates to a method for cultivating selenium-enriched rice. Background technique [0002] With the improvement of people's living standards, a significant decrease in labor intensity and changes in eating habits, the incidence of diabetes has risen rapidly and is showing a younger trend, posing a serious threat to life and health. Before 1980, the incidence of diabetes in my country was only 0.3% of the total population. Now according to the latest domestic statistics, the incidence of diabetes in my country has reached more than 4%. There are about 40 million people with diabetes in my country. Diabetes is the second killer of modern diseases, and its harm to the human body is second only to cancer. [0003] According to reports, organic selenium is an essential trace element for the human body and plays a special role in the body's glucose metabolism and lipid metabolism. Organic...

AI Technical Summary

Problems solved by technology

At the same time, breeders are also exploring new ways. In recent years, more new breeding technologies have been used, such as radiation breeding, haploid breeding, and transgenic technology. The comprehensive application of some methods in hybridization and biotechnology to breeding often has a large span of disciplines, and breeders seldom use them