A kind of breeding method of high-zinc and pest-resistant green rice
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A disease-resistant and pest-resistant rice technology, which is applied in botany equipment and methods, plant gene improvement, application, etc., can solve the problems of rice yield, health and safety quality hazards, economic losses, etc., to ensure food safety, zinc nutrition, etc. Promoted effect
Active Publication Date: 2019-04-02
ZHEJIANG UNIV
View PDF2 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Frequent outbreaks of original diseases and insect pests such as rice blast, rice planthopper and rice stem borer have caused huge economic losses. Serious damage to rice production, hygiene and safety quality due to untimely prevention has become very common
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The present invention will be further described in detail below in conjunction with examples.
[0028] 1. Breeding materials:
[0029] (1) The disease-resistant rice variety Huazhan was used as the female parent. Huazhan is a strong dominant indica restorer line selected by the China Rice Research Institute (new variety authorization announcement number: CNA004168G), which can be purchased from the research group of Zhu Xudong, China Rice Research Institute. This variety is resistant to rice blast, carries the main blast resistance gene Pi2, and has a zinc content of only 12.3mg / kg.
[0030] (2) Zhekangdao No. 2 was used as the male parent. Zhekangdao 2 is a new japonica rice variety with repellent insect resistance to rice planthopper and rice stem borer selected and bred by Zhejiang University. This variety has applied to the Plant New Variety Protection Office of the Ministry of Agriculture for acceptance of new variety protection, application number: 20130458.8, ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a method for breeding high-zinc-content, disease-resistant, insect-resistant and environment-friendly rice. The method comprises the steps: selecting disease-resistant rice as a parent plant I, selecting expelling type insect-resistant rice as a parent plant II, and carrying out cross breeding, so as to obtain single-cross F1 seeds; selecting non-glutinous rice with the zinc content of 30mg / kg or more as a parent plant III, planting a single-cross F1 generation, and carrying out cross breeding on the single-cross F1 generation and the parent plant III, so as to obtain three-way-cross F1 seeds; planting a three-way-cross F1 generation, and constructing doubled haploid populations by adopting an anther culture technique; planting a DH1 generation according to plant lines, extracting DNA from the DH1 generation, carrying out molecular marker identification to select disease-resistant genes, and selecting plant lines, of which polished rice has the zinc content not lower than 30mg / kg, from selected plant lines; planting a DH2 generation according to plant lines, and selecting plant lines which have expelling type insect resistance to rice planthoppers and striped rice borers; planting a DH3 generation according to strains, and selecting japonica-cline type strains; and planting a DH4 generation according to strains, and selecting disease-resistant, insect-resistant and japonica-cline type stereotyped strains with the zinc content of 30mg / kg or more, thereby obtaining the high-zinc-content, disease-resistant, insect-resistant and environment-friendly rice. The bred rice variety integrates 3 kinds of excellent features, i.e., high zinc content, disease resistance and insect resistance.
Description
technical field [0001] The invention relates to the technical field of rice breeding, in particular to a method for breeding green rice with high zinc content and resistance to diseases and insect pests. Background technique [0002] Zinc is an essential micronutrient element for the human body and has important physiological functions. Zinc deficiency in the human body will cause a series of metabolic disorders and directly endanger human health. For example, zinc deficiency in children will cause growth retardation and immune function reduction in mild cases, and mental retardation and even death in severe cases. Zinc is mainly found in seafood and animal offal, and other foods contain very little zinc. In the daily diet, whether it is rice, noodles, bread and other staple foods, or children's favorite milk, egg foods and other snacks, the zinc content is very low, and there are very few zinc-rich vegetables and fruits. WHO and FAO recommend that the daily zinc intake sh...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more