Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rice hybrid breeding material as well as cultivation method and application thereof

A breeding method and rice hybridization technology, which is applied in the field of rice seed production, can solve the problems of difficulty in ensuring purity, cumbersome steps, and high cost of seed production, and achieve the effects of improving purity, simple reproduction, and easy control

Inactive Publication Date: 2014-11-12
RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a rice hybrid breeding material and its cultivation method and application, aiming at solving the problems of high seed production cost, cumbersome steps and difficulty in guaranteeing the purity in current production.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rice hybrid breeding material as well as cultivation method and application thereof
  • Rice hybrid breeding material as well as cultivation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 The cultivation method of rice hybrid breeding material

[0030] Take rice varieties NS629S and RH003 as examples;

[0031] (1) Cultivation method of female parent material

[0032] Clone the stamen-specific promoter of Osg6B and drive the antisense fragment of the cyhalofop-methyl-sensitive gene or bentazone-sensitive gene to transform the rice variety NS629S. In the transgenic progeny, a single-copy insertion was selected, the agronomic traits were good, and only in the stamen part. Plants with high sensitivity to cyhalofop or bentazone were used as female parent material;

[0033] (2) Cultivation method of male parent material

[0034] Clone the pistil-specific promoter of STS14 to drive the antisense fragment of cyhalofop-methyl-sensitive gene or bentazone-sensitive gene and introduce it into rice variety RH003. In the transgenic progeny, a single-copy insertion is selected, the agronomic traits are good, and only in the pistil part of the cyanide Pl...

Embodiment 2

[0035] Embodiment 2, mechanized mixed sowing seed production (plantation in Hefei, Anhui)

[0036] (1) Mix the seeds of the parent material obtained from the invention with a mass ratio of 1:6 (male parent: female parent), sow seeds from May 10th to May 15th, and use conventional water seedling breeding methods to cultivate strong seedlings. The rice transplanting adopts Kubota SPW-48C automatic rice transplanter, with an average row spacing of 30 cm and a plant spacing of 18 cm. Field planting adopts conventional water and fertilizer management, and sprays corresponding herbicides (such as cyhalofop-ethyl, water agent mass fraction 0.25%, spraying 50L-60L per mu) about 7 days before heading, kill males (female parent), Female (male parent); seeds harvested by harvester. After sampling inspection, the tested seeds were all hybrids, and no parents were self-bred and mixed.

[0037] According to the type of herbicide, control the concentration, time and location of sprayin...

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

No PUM Login to View More

Abstract

The invention discloses a rice hybrid breeding material as well as a cultivation method and application thereof. A female parent material with a herbicide sensitive gene and a male parent material with the herbicide sensitive gene are obtained by specific promoter drive and antisense inhibit expression methods; the herbicide sensitive gene is just expressed in stamen; and the herbicide sensitive gene is just expressed in pistil; the female parent material and the male parent material are mixed in application; mechanized cropping is carried out; the female parent emasculation and male parent female removal are achieved by spraying the herbicide before heading; and the high-quality F1 hybrid seed is produced by one-way mating between parents. By adopting the method disclosed by the invention, a sterile line and a restorer line can be freely obtained; high-purity hybrid is obtained; mixing of the self-fruitfulness seed is effectively removed; especially, serious decline of hybrid purity caused by fertility recovery of the photo-thermo-sensitive sterile line under an adverse light temperature condition is avoided; the breeding process of the parents of the hybrid rice is simplified; manpower and material resources are saved; and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of rice seed production, in particular to a rice hybrid breeding material and its cultivation method and application. Background technique [0002] Hybrid rice has made great contributions to food security in my country and the world. However, in the existing rice heterosis utilization and seed production, the combination is not free, and the seed production links are many, the process is complicated, too much depends on intensive manpower and material resources, and the production efficiency is low. Especially in recent years, with the development of my country's economy, young and middle-aged people in rural areas have migrated to cities to work, and there is a shortage of rural labor force. The production of hybrid rice seeds is facing serious challenges. The realization of hybrid rice mechanized mixed seed production is of great significance to reduce the cost of hybrid rice seed production, improve the quality a...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02
Inventor 杨剑波魏鹏程宋丰顺倪金龙倪大虎李浩李泽福陆徐忠
Owner RICE RES ISTITUTE ANHUI ACAD OF AGRI SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com