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

Method for producing hybrid rice seeds of light-temperature sensitive male sterility line under higher temperature or long-day high temperature

A technology of photothermo-sensitive sterile lines and male sterile lines, which is applied in the field of breeding and can solve problems such as instability and low yield of seed production

Inactive Publication Date: 2011-04-06
HUNAN HYBRID RICE RES CENT +1
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention is proposed and completed on the basis of solving the above-mentioned problems of low yield and unstable seed production of high-temperature or long-day high-temperature sterile rice photothermo-sensitive male sterile lines

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 1

[0066] Example 1 Seed Production by Hybridization of High-temperature Sterile Thermosensitive CMS Line Che 64S and Male Parent 9311

[0067] Female parent: Che 64S (Chinese patent, ZL94 107289.4; Hunan Agricultural Science, 1993.1: 10-11), a high-temperature sterile thermosensitive male sterile line selected for the Hunan Hybrid Rice Research Center and certified by the Hunan Provincial Science and Technology Commission. The starting temperature of 64S sterility is about 23°C.

[0068] Male parent: The male parent 9311 is commonly used in hybrid rice seed production, and the male parent of the two-line hybrid rice combination Liangyoupeijiu (National Approved Rice 2001001; Journal of Jiangsu Agricultural Science, 2000, 16(4): 193-196) is widely used in production.

[0069] Determine the seed production base. Choose a large-scale paddy field under large and medium-sized reservoirs in Changsha, with sufficient sunlight, few pests and diseases, fertile soil, and convenient trans...

Embodiment 2

[0083] Example 2 Seed production by crossing the long-day high-temperature sterile type photothermo-sensitive genic male sterile line Pei'ai 64S with the male parent 9311

[0084] Female parent: Peiai 64S (Announcement No. CNA1999000.9 for the Protection of New Varieties of Agricultural Plants; Hybrid Rice, 2000, 15(2): 4-5), which was selected and bred by Hunan Hybrid Rice Research Center and passed the identification of Hunan Provincial Science and Technology Commission. The applied high-temperature sterile photothermo-sensitive male sterile line. The starting temperature of Pei'ai 64S sterility is about 24℃.

[0085]Male parent: The male parent 9311 is commonly used in hybrid rice seed production, and the male parent of the two-line hybrid rice combination Liangyoupeijiu (National Approved Rice 2001001; Journal of Jiangsu Agricultural Science, 2000, 16(4): 193-196) is widely used in production.

[0086] Determine the seed production base. Choose Changsha large and medium-...

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

A method for culturing the seeds of photosensitive and thermo-sensitive male sterility line of high-temp sterile or long-day high-temp sterile rice includes such steps as choosing male parent and female parent (photosensitive and thermo-sensitive sterility line), sowing, irrigating with cold water when the ambient temp is higher than the critical temp of fertility transform, hybridizing, growing and harvesting.

Description

technical field [0001] The invention relates to the field of breeding, in particular, the invention relates to a seed production method of a high-temperature or long-day high-temperature sterile type rice photothermo-sensitive male sterile line. Background technique [0002] At present, various forms of photothermo-sensitive genic male sterile lines such as high-temperature sterile or long-day high-temperature sterile, low-temperature sterile or short-day low-temperature sterile have been found. High-temperature or long-day high-temperature sterile (low-temperature or short-day low-temperature fertile) type photothermo-sensitive genic male sterile line will be male fertile or partially fertile when encountering a certain degree and time of low temperature during the sensitive period of fertility conversion; Male sterility. In the existing high-temperature sterile or long-day high-temperature sterile photothermo-sensitive sterile lines, temperature is the key factor controll...

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): A01G16/00A01H1/02A01G22/22
Inventor 李新奇赵昌平袁隆平张利伟
Owner HUNAN HYBRID RICE RES CENT
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