A kind of hybrid rice breeding method

Abstract

The invention discloses a hybrid rice seed selection method. The hybrid rice seed selection method comprises the following steps: taking black rice giant embryo paddy rice types as a seed parent to perform hybridization with glutinous rice type to obtain F1-generation seeds; F1 is subjected to back cross for one time with glutinous rice types to obtain BC1F1 seeds; planting the BC1F1 plant, employing an anther culture technology to construct a doubled haploid colony, gaining DH0 seeds according to per plant; planting DH1, selecting the single plants with three properties of black rice, giant embryo and glutinous performance; planting DH2, selecting lines having good rice blast resistance; planting DH3, selecting lines having high-yield performance; and planting DH4, selecting seeds fixing lines to obtain the giant embryo black glutinous paddy rice types. The paddy rice types have three characteristics of black rice, giant embryo and glutinous rice, content of calcium, iron, zinc, lysine, methionine, serine and gamma-aminobutyric acid is high, the method can keep better excellent comprehensive characteristic of the parent, the property is rapid and stable, the hybrid rice seed selection enables identification at an early stage, and the breeding period is short.

Description

technical field [0001] The invention belongs to the field of plant breeding, and relates to hybrid rice breeding, in particular to a method for breeding giant-embryo black glutinous rice. Background technique [0002] Rice germ is rich in protein, fat, soluble sugar, vitamins and various physiologically active ingredients, such as GABA, inositol, oryzanol, VE, glutathione and N-dehydroceramide. Medical nutrition experts have already pointed out that long-term consumption of germ rice can prevent high blood pressure and high blood fat, lower serum cholesterol, soften blood vessels, help detoxification, beautify the skin, and maintain youthful vitality. As far as the development trend of my country's diet is concerned, in the past it was "eat enough to survive", but now it is "eat nutritiously to be healthy". [0003] From the late 1980s to the early 1990s, Satoh and Omura of the Japan Agricultural Research Center used the chemical mutagen N-methyl-N-nitroso to treat the fert...

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Problems solved by technology

It is also a pity that black rice is generally edible and of poor quality.

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