Breeding method of high-quality black rice

A breeding method and high-quality rice technology, applied in the direction of botanical equipment and methods, application, plant gene improvement, etc., can solve problems such as poor taste, low commodity value, poor cultivation characteristics, etc., to promote agricultural supply-side reform, Improve farmers' planting benefits and increase the value of commodity development

Inactive Publication Date: 2018-12-07
HUNAN HYBRID RICE RES CENT
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Problems solved by technology

Due to the relatively poor cultivation characteristics of black rice, the plants are tall, the leaves are wide, they are not resistant to fertilizers, they are easy to lodging, the seed setting rate is low, and th...

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  • Breeding method of high-quality black rice

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 Shown, a kind of cultivation method of black rice sterile line of two lines comprises the following steps:

[0019] (1) Hybridize the conventional black rice variety with the high-quality rice with fragrance that has been popularized in a large area, and harvest the seeds of the F1 generation;

[0020] (2) the F1 generation seed that step (1) is obtained is planted, and harvest F2 seed, it can be seen that from the F2 generation, there is obvious separation in the mature stage, and the growth period is relatively short, the plant height is relatively short, the long-grain type, Low amylose content, less chalky, and the skin and seed coat are black rice single plant varieties;

[0021] (3) Carry out molecular identification of aroma molecular markers by PCR amplification reaction, and screen out individual plants with a...

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Abstract

The invention discloses a breeding method of high-quality black rice. The breeding method includes the following steps: black rice varieties and fine conventional rice varieties are collected, the black rice varieties are crossed with the fine conventional rice varieties to harvest F1 generation seeds, the F1 generation seeds are replanted, separation began in a hybrid F2 generation, the long-grain type seeds with less chalkiness and black seed coat, peel and endosperm are selected, the seeds are screened by scent molecular markers after harvesting the seeds, and a single plate with the scentmolecular markers is selected. After 6-8 generations of single-plant breeding, each generation is screened by the scent molecular markers so as to breed the stable black rich with high yield, short growth period, good resistance, long grain type, low amylose content, low chalkiness and fragrance. Processed brown rice can be comprehensively improved in nutritional level. Clinical studies show thatthe processed brown rice can effectively control the increase of the blood sugar content after being ate.

Description

technical field [0001] The invention relates to the field of hybrid rice breeding, in particular to a method for cultivating high-quality black rice. Background technique [0002] Rice is the staple food of more than 50% of the world's population. With the improvement of living standards, people not only can consume general grains such as white rice and white flour, but also continue to increase their demand for other varieties that combine delicious, nutritious, and health-care functions. Due to the aggravation of environmental pollution, the high pressure of life, and the accelerated pace of life, many diseases are caused by improper nutrition. With the improvement of living standards, people pay more and more attention to the rationalization and nutrition of meals. Specialty rice can provide people with rich nutrients and biologically active substances, and it is an ideal and effective way to solve various chronic diseases and nutritional imbalances in humans. Purple bl...

Claims

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Application Information

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IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 黄志远吕启明罗治斌朱立煌
Owner HUNAN HYBRID RICE RES CENT
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