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

Method for improving out-crossing maturing rate of indica type hybrid rice seed production

A technology of hybrid rice and outcrossing fruiting, which is applied in botany equipment and methods, plant genetic improvement, agriculture, etc., can solve the problems of large influence of meteorological conditions, high labor intensity, cumbersome operation, etc., and achieve small meteorological constraints and work High efficiency, increase the effect of combining success rate

Pending Publication Date: 2022-03-01
YIELEAD RICE IND +1
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for improving the outcross seed setting rate of indica hybrid rice seed production, to solve the problem that existing auxiliary pollination methods are greatly affected by meteorological conditions, and repeated pollinations lead to high labor intensity and low efficiency. cumbersome questions

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
  • Method for improving out-crossing maturing rate of indica type hybrid rice seed production
  • Method for improving out-crossing maturing rate of indica type hybrid rice seed production
  • Method for improving out-crossing maturing rate of indica type hybrid rice seed production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Taking II-32A×Zhehui 205 as an example, indica hybrid rice seed production was carried out as follows:

[0024] (A) According to the planting density of the male parent is 24 × 30cm, the planting density of the female parent is 14 × 18cm, the parental row ratio is 6:40, the male parent’s box width of 6 rows is 150cm, and the female parent’s box is 720cm wide, and the male parent’s box is planted respectively And the female parent box, the parent parent spacing is 30-45cm, and the cultivation is carried out under conventional rice planting conditions, and the difference between the flowering period of the male parent and the female parent is controlled within two days;

[0025] (B) Select a sunny day, and use an auxiliary pollination mechanism to carry out auxiliary pollination operations during the flowering period of the parents. The average environmental wind speed during pollination is 8m / s, such as Figure 1 to Figure 5 As shown, the auxiliary pollination...

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 method for improving the out-crossing maturing rate of indica type hybrid rice seed production, which relates to the technical field of hybrid rice seed production and comprises the steps of interval cultivation of male and female parent rice and auxiliary suspension pollination operation in the flowering phase. The auxiliary pollination mechanism is used for raising pollen and blowing the pollen to the position above the female parent compartment in the front-back moving process, a pollen suspension layer can be formed at the rice ear of the female parent compartment, the combination success rate of the pollen and stigma is increased, the outcrossing maturing rate is effectively increased, the pollination frequency is reduced, and the pollination success rate is increased. According to the method, pollination operation can be carried out under any wind direction and wind speed conditions, the seed production setting rate cannot be influenced by the wind direction and the wind speed, the constraint of meteorological conditions is small, the working efficiency is high, and the method is suitable for large-scale seed production.

Description

technical field [0001] The invention relates to the technical field of hybrid rice seed production, in particular to a method for improving the outcross seed setting rate of indica hybrid rice seed production. Background technique [0002] Rice is a self-pollinating crop, and hybrid rice seed production has become a cross-pollination outcrossing cultivation process due to the complete abortion of the male sterile line's own pollen, which must rely on the male parent's pollen for fertilization and fruiting. [0003] The yield of hybrid rice seed production depends on the rate of outcrossing seed setting of the female parent, and the effective pollen quantity provided by the male parent is the key to determine the rate of outcrossing seed setting of the female parent, because rice self-pollination does not have beautiful corolla and glumes. Flowers, pollen grains are small, belong to wind-pollinated flowers, and it is difficult to meet the production requirements for hybrid ri...

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
IPC IPC(8): A01H1/02
CPCA01H1/027
Inventor 葛伟强王思哲夏祥华朱迎婷任代胜杨家来赵艳飞陶兴武曹秀敏
Owner YIELEAD RICE IND
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