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Selection method of bi-functional rice variety

A dual-function rice and variety technology, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of low success rate and achieve highly targeted effects

Inactive Publication Date: 2016-02-03
浙江绿巨人生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the technical aspects of cultivating double-function rice, there is one function that is effective for cultivation, and the two functions are mutually antagonistic, and the success rate of cultivation is low, which brings a lot of work to the breeding work.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Breeding material:

[0020] (1) Zhefu 111 was used as the female parent. Zhefu 111 is a high-resistant starch rice variety cultivated by Zhejiang University. This variety has applied for and authorized the Ministry of Agriculture's new plant variety protection, application number 20080431.6. The resistant starch content in the hot rice of this rice variety can reach 10.9%.

[0021] (2) ZD-lgc-01 was used as the male parent. ZD-lgc-01 is a rice variety with low water-soluble protein cultivated by Zhejiang University. The water-soluble protein content in this rice variety is 3.9%. See scientific and technological achievements for breeding details: Zhejiang University Jianzi [2008] No. 11 "Molecular Breeding of Indica Rice for Kidney Diseases with Low Water-Soluble Proteins".

[0022] 2. The breeding process of dual-function rice varieties is as follows:

[0023] (1) In the winter of 2012, in Lingshui, Hainan, 7 seeds of the F1 generation were obtained by crossing...

Embodiment 2

[0032] 1. Breeding material:

[0033] (1) Zhefu 111 was used as the female parent. Zhefu 111 is a high-resistant starch rice variety cultivated by Zhejiang University. This variety has applied for and authorized the Ministry of Agriculture's new plant variety protection, application number 20080431.6. The resistant starch content in the hot rice of this rice variety can reach 10.9%.

[0034] (2) ZD-lgc-01 was used as the male parent. ZD-lgc-01 is a rice variety with low water-soluble protein cultivated by Zhejiang University. The water-soluble protein content in this rice variety is 3.9%. See scientific and technological achievements for breeding details: Zhejiang University Jianzi [2008] No. 11 "Molecular Breeding of Indica Rice for Kidney Diseases with Low Water-Soluble Proteins".

[0035] 2. The breeding process of dual-function rice varieties is as follows:

[0036] (1) In the winter of 2012, in Lingshui, Hainan, 34 seeds of the F1 generation were obtained by crossin...

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PUM

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Abstract

The invention discloses a selection method of a bi-functional rice variety. The selection method comprises the steps that a rice variety with the high resistant starch content serves as a parent to hybridize with a rice variety with low water-soluble protein to obtain F1 generation seeds; F1 generation seeds self; rice plants with the resistant starch content more than 10% and the low water-soluble protein content below 4% are selected from F2-F3 generation plants; high-yield strains are selected from F4 generation strains; systematic selection is performed on F5-F6 generation strains to select fine strains with the high resistant starch content; the final bi-functional rice variety is obtained in F7 generation. According to the selection method, the bi-functional rice variety integrates the two excellent characteristics of high resistant starch content and low water-soluble protein content and is suitable for being eaten by diabetes patients and kidney disease patients.

Description

technical field [0001] The invention belongs to the technical field of rice breeding, and in particular relates to a breeding method for a double-function rice variety. Background technique [0002] There are about 92 million people with diabetes in my country. At present, the treatment of diabetes mainly relies on drugs and diet control. The market urgently needs the appearance of functional foods that can balance and stabilize blood sugar, have obvious auxiliary effects on diabetes treatment, and have good prevention. FAO and WHO pointed out in the book "Carbohydrate Expert Forum in Human Nutrition" published by the United Nations in 1998: "The discovery and research progress of resistant starch is one of the most important researches on the relationship between carbohydrates and health in recent years. results". The content of resistant starch in ordinary rice is very low, generally less than 1%, and the content of commercially available high-quality rice is even lower...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 徐开盛吴殿星
Owner 浙江绿巨人生物技术有限公司