Method for breeding sterile line of high-zinc rice

A breeding method and high-zinc technology, applied in the field of breeding of high-zinc rice sterile lines, can solve the problems of large gaps, hindering the industrialization process, high zinc content rice production costs, and high rice prices, so as to maintain the shape of plants and leaves, improve The effect of producing and multiplying seed production and shortening the time of transfer

Inactive Publication Date: 2014-07-02
浙江谷佑生物科技有限公司
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Problems solved by technology

Since the breeding of high-zinc rice CMS lines is still in its infancy, there is a large gap between its yield, disease resistance, quality level and seed production and th

Method used

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  • Method for breeding sterile line of high-zinc rice
  • Method for breeding sterile line of high-zinc rice

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Embodiment 1

[0018] Embodiment 1 The breeding method of the heterozygous high-zinc hybrid rice CMS line based on the hybrid japonica rice CMS Xiushui 110A

[0019] In this example, Xiushui 110A, a japonica CMS line with high quality, high yield and disease resistance, was selected. Corresponding materials Xiushui 110A and Xiushui 110B (available from Jiaxing Academy of Agricultural Sciences) are hybrid rice male sterile line A and maintainer line B. The high-zinc-content rice "Jiazhedao No. 1" can be purchased from the applicant unit or Zhejiang University. It is a rice variety with a zinc content of more than 30 mg / Kg cultivated by cooperation with Zhejiang University through industry-university-research cooperation. It is an ordinary rice (general 2 to 3 times the zinc content (below 15mg / Kg), has applied for protection to the Plant Variety Protection Office of the Ministry of Agriculture, and the application announcement number is CNA010411E.

[0020] The rice Jiazhedao 1 with high zin...

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Abstract

The invention discloses a method for breeding a sterile line of high-zinc rice, and belongs to the technical field of rice crossbreeding. The method comprises the following steps: firstly, selecting a high-quality, high-yield and anti-disease improved target hybrid rice sterile line, subsequently hybridizing and backcrossing the high-zinc rice with a maintainer line twice, selecting and keeping a single plant with high zinc content, test-crossing with the sterile line in pairs, continuously selecting and keeping excellent plants which completely keep the sterility characteristic, further evaluating the economical characters, breeding a high-zinc rice maintainer line, and preparing to obtain the high-quality, high-yield and anti-disease hybrid high-zinc rice sterile line by taking the sterile line as a female parent and the high-zinc rice maintainer line as a male parent. According to the hybrid high-zinc rice sterile line bred by using the method, the high zinc content is achieved, and at the same time the excellent plant leaf morphology, the characteristics of high yield, high quality and anti-disease and the heterosis of a sterile line A are maintained, the yields of the seed reproduction and the hybridized combination are improved, and the inheritance encumbrance effect of high zinc is eliminated.

Description

technical field [0001] The invention belongs to the technical field of rice hybrid breeding, and in particular relates to a method for cultivating a high-zinc rice sterile line. Background technique [0002] Micronutrients exist widely in nature, but the human body cannot synthesize them by itself and must be supplemented in the diet. Nearly 50% of the world's population is affected by zinc micronutrient deficiency, and this trend is still increasing. Micronutrients have become an important global factor affecting human health. According to incomplete statistics, not only nearly 800,000 children die due to zinc deficiency every year in the world, but zinc deficiency also seriously affects the intelligence and development of infants and young children, bringing heavy mental and economic burdens to individuals, families and the country. [0003] Zinc is mainly found in seafood and animal offal, among which oysters contain the highest zinc, and other foods contain very little ...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04
Inventor 吴殿星舒小丽孙健
Owner 浙江谷佑生物科技有限公司
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