CN108770850A - It is a kind of inhibit rice blast composition and its application - Google Patents
It is a kind of inhibit rice blast composition and its application Download PDFInfo
- Publication number
- CN108770850A CN108770850A CN201810614562.3A CN201810614562A CN108770850A CN 108770850 A CN108770850 A CN 108770850A CN 201810614562 A CN201810614562 A CN 201810614562A CN 108770850 A CN108770850 A CN 108770850A
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- Prior art keywords
- rice blast
- composition
- jasmonic
- rice
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
- A01N37/38—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
- A01N37/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing within the same carbon skeleton a carboxylic group or a thio analogue, or a derivative thereof, and a carbon atom having only two bonds to hetero atoms with at the most one bond to halogen, e.g. keto-carboxylic acids
Abstract
The present invention provides a kind of composition inhibiting rice blast and its applications, belong to plant protection art.Composition provided by the invention includes jasmonic and salicylic acid, and the jasmonic and salicylic molar ratio are 0.5:1~1.5:1.Jasmonic and salicylic acid are applied in combination, and can effectively be directed to the fungi in rice blast fungus Different Nutrition type stage, form comprehensive prevention and control.The present invention also provides application of the above-mentioned composition in preventing rice blast.Experimental verification, through above-mentioned composition treated rice blast rice, incidence of the infection rice blast bacterial strain after 120 hours can be reduced to 20% by 60%.Illustrate it is provided by the invention inhibit rice blast method safety, effectively.The present invention, which is that plant disease green caused by half live body parasitical fungi is anti-, provides important theory and practice reference.
Description
Technical field
The invention belongs to plant protection arts, and in particular to it is a kind of inhibit rice blast composition and its application.
Background technology
Green prevention and control refers to by promoting and applying the green prevention and controls such as ecological regulation and control, biological control, physical control, Scientific Usage of Drugs
Technology reduces the purpose that pest and disease damage breaks out probability, while it is also to promote standardized production to reach protection bio-diversity,
Promote the inevitable requirement of agricultural product quality and safety level.The diseases and pests of agronomic crop of China's prevention at present relies primarily on chemical prevention and arranges
It applies, while controlling disease pest damage losses, also brings disease pest drug resistance and rise the problems such as breaking out probability increase with disease pest.It pushes away
Extensively protection bio-diversity is not only facilitated using green prevention and control technology, reduction pest and disease damage breaks out probability, and that realizes pest and disease damage can
Lasting control, and be conducive to mitigate disease pest damage losses, ensure the effective supply of grain good harvest and main farm produce.Meanwhile
Pollution of area source caused by also substantially reducing pesticide and its waste helps to protect agroecological environment.
Biological control is a kind of method for tackling another biology using biology.And the technology of biological control has very much,
Such as pest and disease damage is effectively prevent using natural enemy, resistance, plant induced resistance agent.And utilize plant derivant induction plant to certain or
Certain pathogens are referred to as On Induced Disease Resistance In Plants from original susceptible be changed into certain resistance.And plant derivant
It can be referred to as exciton.Common plant disease-resistant exciton has salicylic acid (SA) and its derivative, chloroisonicotinic acid (INA), benzene
And the compounds such as thiadiazole (BTH) and oligosaccharide kind.It can induce SAR gene expressions and generate pathogenesis-related proteins (PR), and carry
The resistance that height infects germ.The signaling molecule of common SAR mainly have salicylic acid (SA) and the like, jasmonic (JA) and
Its derivative and ethylene (ETH) etc..Jasmonic has the plant induced by external source exciton as a kind of chemical plant derivant
Disease resistance (SAR) has following four characteristics and advantage：First, systematicness.I.e. this reaction can spread all over complete stool from inductive site,
Both it can occur in inductive site, its untreated hetero-organization of plant can also be transmitted to or organ works, but also can
It is transmitted by grafting.Second is that persistence.SAR can generally continue entirely to grow to some months, or even in crop in several weeks once induction
Phase works, long action time (lasting period is long).Third, broad spectrum activity.Although SAR is induced by specific inducer, but act on
It is wide spectrum, all works to a variety of pathogens such as fungi, bacterium and virus, reason is that jasmonic induction causes SAR
The startup and expression of gene, lead to a series of variation on physiology, biochemistry and cytology, and then inhibit the generation and expansion of disease
Exhibition.Fourth, safety.It is i.e. nontoxic, environmentally safe to people and animals：Because inducer itself does not generate toxic action to pathogen,
The mechanism of action is that induction plant is interior in disease-resistant potentiality, thus does not select pathogen pressure, is not likely to produce drug resistance, so
Side effect is not also generated to environment：This is the unexistent advantage of many fungicide, meets green, the development trend of the ecological agriculture.
Pyricularia oryzae belongs to half live body parasitical fungi, is one of Main Rice Diseases, can cause Severe Reduction of Rice.Rice blast
Germ is inoculated with 16~20 hours after blade initially, infects mycelia growing multiplication in epidermal cell, subsequent (20~36 hours)
It infecting mycelia and extends to and close on cell, scab starts to show within 72 hours, is the biotroph stage of Pyricularia oryzae before 72 hours,
And after 72 hours it is the dead volume vegetative phase of Pyricularia oryzae.Currently, most of research is concentrated mainly on by outside spraying in advance
Source jasmonic is on plant, to analyze resistance of the plant to pathogen, although Exogenous Jasmonic Acid handles plant energy in this way
Certain control effect is played to disease, but control effect is not best.
Invention content
In view of this, the purpose of the present invention is to provide a kind of composition of prevention and control rice blast and its application, green
Safety, control effect are good.
The present invention provides a kind of composition inhibiting rice blast, including jasmonic and salicylic acid, the jasmonics
It is 0.5 with salicylic molar ratio:1~1.5:1.
Preferably, the jasmonic and salicylic molar ratio are 0.8:1~1.2:1.
Preferably, the dosage form of the composition is alcohol agent.
Preferably, in the alcohol agent, the content of the jasmonic is 50~150 μm of ol/L.
Preferably, in the alcohol agent, the salicylic content is 50~150 μm of ol/L.
The present invention provides application of the above-mentioned composition in preventing rice blast.
Preferably, rice is sprayed using above-mentioned composition.
Preferably, the period of the sprinkling is that rice infects 60~84 hours after rice blast.
Preferably, when the composition is alcohol agent, the fountain height of the composition is 2~4L/ mus.
Advantageous effect：
The present invention provides a kind of compositions inhibiting rice blast, and the composition includes jasmonic and bigcatkin willow
Acid, the jasmonic and salicylic molar ratio are 0.5:1~1.5:1.The jasmonic act as kill rice blast flora
Necrotrophic fungus in body；The salicylic biotroph fungi acting as in kill rice blast fungus population.Jasmine
Jasmine acid and salicylic acid are applied in combination, and can effectively be directed to the fungi in rice blast fungus Different Nutrition type stage, form comprehensive prevention and control.
The present invention also provides application of the above-mentioned composition in inhibiting rice blast.Experimental verification, through said combination
Object treated rice blast rice, incidence of the infection rice blast bacterial strain after 120 hours can be reduced to 20% by 60%.Illustrate this
Invention provide inhibition rice blast method safety, effectively.The present invention is plant disease caused by half live body parasitical fungi
Green is anti-to provide important theory and practice reference.
Specific implementation mode
The present invention provides a kind of composition inhibiting rice blast, including jasmonic and salicylic acid, the jasmonics
It is 0.5 with salicylic molar ratio:1~1.5:1.The jasmonic and salicylic molar ratio are preferably 0.8:1~1.2:1,
More preferably 1:1.In the present invention, the necrotrophic fungus of the jasmonic acting as in kill rice blast fungus population；
The salicylic biotroph fungi acting as in kill rice blast fungus population.Jasmonic and salicylic acid are applied in combination,
It can be effectively directed to the fungi in rice blast fungus Different Nutrition type stage, form comprehensive prevention and control.
In the present invention, the dosage form of the composition is preferably methanol solution.Preparation of the present invention to the methanol solution
Method is not particularly limited, the method that this field routinely prepares methanol solution.
In the methanol solution, the content of the jasmonic is preferably 50~150 μm of ol/L, more preferably 100 μm of ol/
L.The salicylic content is preferably 50~150 μm of ol/L, more preferably 100 μm of ol/L.Match in the present inventive method and is made
The composition of the inhibition rice blast arrived to the prevention of rice blast safely, effectively.The present invention experiments verify that, through above-mentioned
Rice blast rice after compositions-treated, incidence of the infection rice blast bacterial strain after 120 hours can be reduced to 20% by 60%.
The present invention also provides application of the above-mentioned composition in inhibiting rice blast.The present invention infects rice blast in rice
After being ill, it is preferable to use above-mentioned composition sprays illness rice.It is further preferred that the period of the sprinkling is rice sense
Contaminate 60~84 hours, more preferably 72 hours after rice blast.The fountain height of the composition is preferably 2~4L/ mus, more preferably
It is 3.5L/ mus.
In the present invention, any to be related to related seedling cultivation of rice, rice blast bacterial strain production spore, disease survey and morbidity statistics
Method, be this field conventional treatment method.
With reference to embodiment, a kind of to inhibit the composition of rice blast and its application to carry out detailed to provided by the invention
Thin explanation, but they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
A kind of composition inhibiting rice blast, includes the jasmonic of 80 μm of ol/L, the salicylic acid of 120 μm of ol/L and remaining
The methanol of amount.
Embodiment 2
A kind of composition inhibiting rice blast, includes the jasmonic of 120 μm of ol/L, the salicylic acid of 80 μm of ol/L and remaining
The methanol of amount.
Embodiment 3
A kind of composition inhibiting rice blast, includes the jasmonic of 100 μm of ol/L, the salicylic acid of 100 μm of ol/L and
The methanol of surplus.
Embodiment 4
Inhibition is tested：
(1) 24 hours, the 48 hours and 72 hours susceptible water of compositions-treated rice blast inoculation of embodiment 3 is used
Rice varieties Lijiang xintuanheigu.
(2) disease survey is carried out when rice blast bacterial strain Inoculated Rice 120 hours, investigation result is shown in Table 1.
Table 1：After 120 hours being infected by rice blast fungus, the incidence result of different disposal group rice blast
The results show that method provided by the invention, which overcomes prior art Exogenous Jasmonic Acid, shifts to an earlier date spraying treatment rice to rice
Seasonal febrile diseases control effect is not satisfactory and the bactericidal agent for preventing and treating rice blast such as spraying pesticide brings the negative of pollution to agroecological environment
The drawbacks of influence.It is finally reached to carry out the purpose that half live body parasitical fungi disease prevention and control provide the best approach from now on.
Embodiment 5
Preventive effect is tested：
(1) composition described in embodiment 1 is sprayed with 2L/ mus of amount and inoculates rice blast bacterial strain after rice leaf, 6h.
(2) disease survey is carried out when rice blast bacterial strain Inoculated Rice 120 hours, rice blast incidence is 48%, is compared
It is low in the incidence for not handling group 60%, illustrate that the composition provided by the present application for inhibiting rice blast has one to rice blast
Determine preventive effect.
Comparative example 1
A kind of jasmonic methanol solution of 80 μm of ol/L of inhibition rice blast.
Comparative example 2
A kind of jasmonic methanol solution of 120 μm of ol/L of inhibition rice blast.
Comparative example 3
A kind of jasmonic methanol solution of 100 μm of ol/L of inhibition rice blast.
Comparative example 4
Inhibition is tested：
(1) 1~3 jasmonic methanol solution of comparative example is used to handle rice blast 72 hours susceptible rice of inoculation
Kind Lijiang xintuanheigu.
(2) disease survey is carried out when rice blast bacterial strain Inoculated Rice 120 hours, investigation result is shown in Table 2.
Table 2：After 120 hours being infected by rice blast fungus, the incidence result of different disposal group rice blast
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of composition inhibiting rice blast, which is characterized in that including jasmonic and salicylic acid, the jasmonic and water
The molar ratio of poplar acid is 0.5:1~1.5:1.
2. composition according to claim 1, which is characterized in that the jasmonic and salicylic molar ratio are 0.8:1
~1.2:1.
3. composition according to claim 1 or 2, which is characterized in that the dosage form of the composition is alcohol agent.
4. composition according to claim 3, which is characterized in that in the alcohol agent, the content of the jasmonic is 50
~150 μm of ol/L.
5. composition according to claim 4, which is characterized in that in the alcohol agent, the salicylic content is 50
~150 μm of ol/L.
6. application of any one of Claims 1 to 5 composition in preventing rice blast.
7. application according to claim 6, which is characterized in that sprayed to rice using the composition.
8. application according to claim 7, which is characterized in that the period of the sprinkling is 60 after rice infection rice blast
~84 hours.
9. according to the application described in claim 6~8 any one, which is characterized in that described when the composition is alcohol agent
The fountain height of alcohol agent is 2~4L/ mus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614562.3A CN108770850A (en) | 2018-06-14 | 2018-06-14 | It is a kind of inhibit rice blast composition and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810614562.3A CN108770850A (en) | 2018-06-14 | 2018-06-14 | It is a kind of inhibit rice blast composition and its application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108770850A true CN108770850A (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810614562.3A Pending CN108770850A (en) | 2018-06-14 | 2018-06-14 | It is a kind of inhibit rice blast composition and its application |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112106776A (en) * | 2020-09-23 | 2020-12-22 | 本生(惠州)生物技术有限公司 | A composition containing natural pesticide and immunity substance, and its preparation method |
| CN116103315A (en) * | 2023-02-07 | 2023-05-12 | 云南农业大学 | Pseudo-ginseng disease course protein gene PnPR4 and application thereof |
-
2018
- 2018-06-14 CN CN201810614562.3A patent/CN108770850A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112106776A (en) * | 2020-09-23 | 2020-12-22 | 本生(惠州)生物技术有限公司 | A composition containing natural pesticide and immunity substance, and its preparation method |
| CN116103315A (en) * | 2023-02-07 | 2023-05-12 | 云南农业大学 | Pseudo-ginseng disease course protein gene PnPR4 and application thereof |
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Application publication date: 20181109 |
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