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

Rice blast biological prevention and curing method

A technology of rice blast and extract, which is applied in the field of biological control of rice blast, can solve the problems such as the decline of control effect, and achieve the effects of low cost, suppression of reproduction, and reduction of infection base

Active Publication Date: 2015-07-22
江西兴安种业有限公司
View PDF1 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, due to the long-term use of conventional pesticides, the rice blast pathogen has developed resistance, and the resistance continues to increase, and the control effect is gradually declining.
At present, there is no precedent of water hyacinth extract being used in the control of rice blast at home and abroad

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 blast biological prevention and curing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of water hyacinth tissue extract extract, the specific steps are as follows:

[0030] Step 1: Decompose the water hyacinth into roots, stems, leaves, flowers and seeds, dry them in an oven at 40°C for 5 hours, and crush them with a plant grinder;

[0031] Second step: Soak the pulverized objects of roots, stems, leaves, flowers and seeds of water hyacinth with organic solvent respectively, and the organic solvent is n-hexane; The temperature is 40°C; the slag is removed by filtration to obtain an extract with a mass concentration of 0.05g / mL;

[0032] Step 3: Concentrate the filtered extract under reduced pressure at a temperature of 40°C to obtain water hyacinth root extract, water hyacinth stem extract, water hyacinth leaf extract, and water hyacinth flower extract respectively. extract and water hyacinth seed extract.

Embodiment 2

[0034] A preparation method of water hyacinth tissue extract extract, the specific steps are as follows:

[0035] Step 1: Decompose the water hyacinth into roots, stems, leaves, flowers and seeds, dry them in an oven at 60°C for 12 hours, and crush them with a plant grinder;

[0036] Second step: Soak the pulverized objects of roots, stems, leaves, flowers and seeds of water hyacinth respectively in an organic solvent, the organic solvent being ethyl acetate; the soaking is carried out in 5 minutes, each soaking time is 8 hours, The soaking temperature is 60°C; filter and remove the slag to obtain an extract with a mass concentration of 0.10g / mL;

[0037] Step 3: Concentrate the filtered extract under reduced pressure at a temperature of 60°C to obtain water hyacinth root extract extract, water hyacinth stem extract extract, water hyacinth leaf extract extract, water hyacinth flower extract extract and water hyacinth seed extract.

Embodiment 3

[0039] A preparation method of water hyacinth tissue extract extract, the specific steps are as follows:

[0040] Step 1: Decompose the water hyacinth into roots, stems, leaves, flowers and seeds, dry them in an oven at 50°C for 8 hours, and crush them with a plant grinder;

[0041] Second step: Soak the root, stem, leaf, flower and seed of water hyacinth with organic solvent respectively, and the organic solvent is ethanol; The soaking is divided into 4, and the soaking time is 7 hours each time. at 50°C; remove the slag by filtration to obtain an extract with a mass concentration of 0.08g / mL;

[0042] Step 3: Concentrate the filtered extract under reduced pressure at a temperature of 50°C to obtain water hyacinth root extract, water hyacinth stem extract, water hyacinth leaf extract, and water hyacinth flower extract respectively. extract and water hyacinth seed extract.

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 blast biological prevention and curing method. In an attacking early stage of rice blast, a clear water dilution liquid of a water hyacinth root extract extractum with the mass fraction of 0.1%-5% is sprayed for one time and again sprayed for one time 6-8 days later. The clear water dilution liquid of extractums of extracts of different organs of water hyacinth is subjected to a spore suppression experiment on rice blast pathogenic bacteria conidiophores, the biological prevention and curing method for prevention and curing of rice blast is found out; according to the method, the rice blast pathogenic bacteria conidiophores are inhibited through the clear water dilution liquid of the water hyacinth root extract extractum, and thus the propagation of rice blast pathogenic bacteria is inhibited, the rice blast pathogenic bacteria infection cardinal number is reduced, and the purpose of prevention and curing of the disease is achieved; the product is more natural and more environmentally friendly, the sources of the raw material is wide, the production method is simple and the cost is low.

Description

technical field [0001] The invention relates to the field of plant disease prevention and control, in particular to a method for biological control of rice blast. Background technique [0002] Water hyacinth (Water Hyacinth) scientific name: water hyacinth, belongs to Hyacinthaceae, Hyacinth genus. The stems and leaves of water hyacinth hang over the water, and the tillers prostrate on the water surface. The flowers are multi-edged and trumpet-shaped, and the flowers are gorgeous and beautiful. The leaves are emerald green and darker. The leaves are entire, smooth and textured. With well-developed fibrous roots, fast tillering and reproduction, and extensive management, it is a good plant for beautifying the environment and purifying water. In the suitable growth area, water hyacinth reproduces extremely fast, often due to over-breeding, it consumes a large amount of dissolved oxygen during growth, suffocates fish, and has almost become synonymous with "pollution". ...

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 Applications(China)
IPC IPC(8): A01N65/40A01P3/00
Inventor 孙洋平
Owner 江西兴安种业有限公司
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