CN102265837A - Sterilizing composition containing thifluzamide and brassinolide - Google Patents
Sterilizing composition containing thifluzamide and brassinolide Download PDFInfo
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- CN102265837A CN102265837A CN2011101537871A CN201110153787A CN102265837A CN 102265837 A CN102265837 A CN 102265837A CN 2011101537871 A CN2011101537871 A CN 2011101537871A CN 201110153787 A CN201110153787 A CN 201110153787A CN 102265837 A CN102265837 A CN 102265837A
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Abstract
The invention relates to a sterilizing composition belonging to the field of pesticide compounding. The sterilizing composition comprises the following effective ingredients in percentage by weight: 80-1% of thifluzamide and 0.0001-30% of brassinolide, wherein the preferable weight percentage of thifluzamide and brassinolide is 40-1% and 0.0001-5%, respectively; the thifluzamide and the brassinolide are compounded in a binary mode; and the total percentage by mass of effective ingredients in the sterilizing composition is 1-90%, preferably 1-45%, and the balance is assistant ingredients which are permitted to use and can be accepted in the pesticide. The sterilizing composition can be prepared into aqueous solution, wettable powder, a suspension, microemulsion, emulsion in water and water-dispersible granules by using a known method. The thifluzamide and the brassinolide are used as effective ingredients to prevent and control bacterial and fungal diseases of various plants, such as grain and the like.
Description
Technical field
The present invention relates to the agriculture chemical compounding technical field, being specifically related to a kind of is two yuan of composite bactericidal compositions of active ingredient with thifluzamide and brassin lactones.
Background technology
Thifluzamide, English name thifluz thifluzamide mie, chemical name: 2 ', 6 '-two bromo-2-methyl-4 '-three furan methoxyl group-4-three furan methyl isophthalic acids, 3-thiadiazoles-5-hydroxyl anilide; The thiophene methuroxam, chemical structural formula:
Thifluzamide; belong to the thifluzamide series bactericidal agent and have strong interior conductivity and the long lasting effect of inhaling; it is the succinate dehydrogenase inhibitor; by suppressing mitochondrial succinate ester dehydrase; hinder tricarbonic acid cycle; make amino acid; sugar lacks energy to be reduced; the division of interference cell and growth; disease there is neural activity, suppresses spore germination; the bacterium pipe extends; mycelial growth and spore mother cell form the Main Stage of conk and breeding, and bactericidal action is directly caused by the parent active substance; there is not corresponding metabolic activity; have protection and therapeutic action, absorb the back and in plant, shift the distribution leaf by the blade face infiltration; flower; really.Be mainly used in the control of rice sheath blight disease at present.This compound effects mode is single, uses pesticide resistance risk height separately.
Brassin lactones, chemistry 2 α by name, 3 α, 22s, 23s-tetrahydroxy-24R-ethyl-β-Gao-7-oxa-5 alpha-courage steroid-6-ketone is first phytosterin compound with plant growth regulation of having succeeded in developing at present, can plant from tens kinds and isolate brassin lactones the object, also can carry out synthetic with chemical method, its chemical structural formula is:
The major physiological function of brassin lactones has: 1, promote cell division and elongation, growth; 2, favourable pollen insemination improves percentage of fertile fruit; 3, improve chlorophyll content, increase photosynthesis; 4, strengthen the anti-adversity ability of plant.Can processing such as soak seed, spray to crops such as paddy rice, corn, wheat, sugarcane, beets.
The most of plant growth regulator that use can only play a role in the short period of time at present, need repeatedly repetitive administration, and effect is more single.Brassin lactones is compared with this class plant growth regulator, has remarkable advantages, can regulate required plurality of enzymes and the hormone of plant growth itself, gives full play to plant self potential and growth vigor, enhancing vitality and the waterlogging ability of drought resisting.As long as use once; just can reach protect flower, fruit retention, expand, multiple purposes such as painted, growth, dwarfing; increase substantially output and improve crop quality; also can reduce the amount of application of agricultural chemicals, chemical fertilizer simultaneously; avoid ecological environmental pollution and reduce the crop-planting cost, input-output efficiency is very remarkable.
Now plant growth regulation has developed into an important kind of agricultural chemicals, and its range of application is constantly expanded, and demand increases sharply, and becomes the 21 century agricultural and realizes overfulfiling a production target one of major measure that increases income.Particularly along with the rapid raising of domestic current living standards of urban and rural residents level, people have proposed requirements at the higher level diversified, high quality, the demand that those scientific and technological contents are low, slow, the inferior agricultural product of upgrading can not adapt to the domestic and international market to the quality of agricultural product.And this class high-efficiency broad spectrum of use brassin lactones, nontoxic high-tech novel plant growth regulation, with have inhale conductivity and long lasting effect in strong novel a fungicide compounding arranged, can effectively reduce corps diseases, strengthen plant autoimmunity, to help agricultural product and meet the needs of the market, win the market and dominate the market, and become an effective way of growth of agricultural efficiency, increasing peasant income, scientific research, market prospects are wide.
Summary of the invention
Under the overall situation of above background, I personnel of research and development centre of company also study for a long period of time to brassin lactones already, discover, the application that is mixed of the former medicine of brassin lactones and multiple common fungicide, chemical fertilizer, plant growth regulator, have significant synergistic effect and additive effect, in most of the cases, can improve the fertilizer efficiency and the bactericide effect of chemical fertilizer, reduce pesticide injury; Improving crops quality with the mixture preparation of each plant growth regulators or foliage fertilizer, find that through a large amount of indoor prescriptions screenings thifluzamide and brassin lactones are mixed and have very high synergistic effect with field experiment, can solve above agricultural problem, and do not find the relevant report that both are mixed and study about this so far.
The present invention is based on long-term scientific research and has proposed a kind of new pesticide sterilizing composite, bactericidal composition of the present invention is to be that two yuan of carrying out of active ingredient are mixed with thifluzamide and brassin lactones, can produce obvious synergistic effect after two kinds of active component combinations, when improving preventive effect, can also strengthen the autoimmunity of plant, improve the defensive ability/resistance ability of plant germ.
Handsome choosing on the basis of a large amount of tests, wherein said is that effective sterilization component carries out in the composite bactericidal composition with thifluzamide and brassin lactones, the percentage by weight of active ingredient thifluzamide and brassin lactones is 80～1: 0.0001～30.
Through indoor targetedly and field experiment several times, of the present invention is two yuan of composite bactericidal compositions of active ingredient with thifluzamide and brassin lactones, and the percentage by weight of effective active composition thifluzamide and brassin lactones is preferably 40～1: 0.0001～5.
Described is the bactericidal composition of effective fungicide active ingredient with thifluzamide and brassin lactones, can be prepared into aqua, wetting powder, suspending agent, microemulsion, aqueous emulsion and water dispersible granules in agriculture formulation art, the quality percentage composition of active ingredient is 1%～90% in the preparation, be preferably 1%～45%, all the other are usual auxiliaries in the agricultural chemicals.
The formulation embodiment of the invention described above bactericidal composition is as follows:
One of technical scheme of the present invention, described bactericidal composition are wetting powder, and the percentage by weight of component is:
The concrete procedure of processing of this bactericidal composition wetting powder is: press above-mentioned prescription with thifluzamide and brassin lactones and dispersant, wetting agent and filler mixing, in stirred tank, evenly stir, behind airslide disintegrating mill, mixing, promptly can be made into the wetting powder of the present composition.
Two of technical scheme of the present invention, described bactericidal composition are suspending agent, and the percentage by weight of component is:
The concrete production stage of this suspending agent is earlier other auxiliary agents to be mixed, mix through high speed shear, add thifluzamide and brassin lactones, abrading-ball is 2～3 hours in ball crusher, make a diameter all below 5mm, make the suspending agent preparation that contains the bactericidal composition of thifluzamide and brassin lactones of the present invention.
Three of technical scheme of the present invention, described bactericidal composition are aqueous emulsion, and the percentage by weight of component is:
The concrete production stage of this aqueous emulsion is: at first former medicine thifluzamide is added with brassin lactones, solvent and emulsifier, cosolvent and be in the same place, make and be dissolved into uniform oil phase; With part water, antifreeze, other insecticides adjuvant such as antimicrobial mixes into uniform water; When the reactor high speed stirs, oil phase is added water, slowly add water, open clipper and carry out high speed shear, and add remaining water, shear half an hour approximately, form the aqueous emulsion of oil-in-water type until reaching the phase inversion point.Promptly make the aqueous emulsion of the bactericidal composition that contains thifluzamide and brassin lactones.
Four of technical scheme of the present invention, described bactericidal composition are water dispersible granules, and the percentage by weight of component is:
The concrete procedure of processing of this bactericidal composition water dispersible granules is: by above-mentioned prescription thifluzamide, brassin lactones and dispersant, wetting agent, disintegrant and filler are mixed, pulverize with micro jet, through mediating, add then and carry out granulation, drying, screening in the fluidized bed prilling dryer after sample analysis makes the water dispersible granules that contains the bactericidal composition of thifluzamide and brassin lactones of the present invention.
Described emulsifier is selected from any one or more mixtures formed with arbitrary proportion in calcium dodecyl benzene sulfonate and aliphatic acid polyethenoxy ether, alkylphenol polyoxyethylene sulfosuccinate, styryl phenol APEO, polyoxyethylene nonylphenol ether, castor oil polyoxyethylene ether, aliphatic acid polyethenoxy base ester, the polyoxyethylene aliphatic alcohol ether.
Described solvent is any one or more mixed solvents formed with arbitrary proportion in dimethylbenzene or biodiesel, toluene, diesel oil, methyl alcohol, ethanol, n-butanol, isopropyl alcohol, turpentine oil, solvent naphtha, dimethyl formamide, dimethyl sulfoxide (DMSO), the water equal solvent.
Described dispersant is selected from one or more in polycarboxylate, lignosulfonates, alkylphenol polyoxyethylene formaldehyde condensation products sulphate, alkyl benzene sulfonate calcium salt, naphthalene sulfonic acid-formaldehyde condensation product sodium salt, alkylphenol polyoxyethylene, aliphatic amine polyoxyethylene ether, polyoxyethylene carboxylate, the fatty acid glyceride APEO.
Described wetting agent is selected from: lauryl sodium sulfate, calcium dodecyl benzene sulfonate, draw back in powder brassin lactones X., wetting and penetrating agent F, alkylnaphthalene sulfonate, polyoxyethylene triphenylethylene phosphenylic acid salt, spaonin powder, silkworm excrement, the soapberry powder one or more.
Described disintegrant is selected from: one or more in bentonite, urea, ammonium sulfate, aluminium chloride, citric acid, succinic acid, the sodium bicarbonate.
Described thickener is selected from: one or more in xanthans, CMC, hydroxyethylcellulose, methylcellulose, Magnesiumaluminumsilicate, the polyvinyl alcohol.
Described stabilizing agent is selected from: a kind of in sodium citrate, the resorcinol.
Described antifreezing agent is selected from: one or more in ethylene glycol, propane diols, the glycerine.
Described defoamer is selected from: silicone oil, silicone compound, C
10-20Saturated fat acid compounds, C
8-10In the aliphatic alcohols compound one or more.
Described filler is selected from: one or more in kaolin, diatomite, bentonite, attapulgite, white carbon, starch, the precipitated calcium carbonate.
A kind of brassin lactones of the invention described above and thifluzamide composite bactericide are with brassin lactones and thifluzamide is composite is in the same place, utilized thifluzamide that germ is suppressed or the effect of kill pathogens and brassin lactones to the therapeutic action of germ, the present invention is to rice disease such as banded sclerotial blight, rice blast etc., wheat diseases control efficiency excellences such as wheat sharp eyespot can reach more than 98% through its control rate of field trial; Continuation is strong, and after control paddy rice, the wheat sharp eyespot medication 14 days, its control rate can reach more than 93%; Production cost is low, reduces more than 50% than independent use thifluzamide.
Embodiment:
In order to make purpose of the present invention, technical scheme and advantage clearer, the present invention describes with following specific embodiment, but the present invention only limits to these examples absolutely not.The method that the present invention adopts indoor bioassay and field trial to combine.If no special instructions, the ratio of below mentioning (comprising percentage) all is a mass ratio.Should be pointed out that all any modifications of being made within the spirit and principles in the present invention, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Field trial 1: to the preventive effect of rice sheath blight disease
(1) investigation method
Experimental field be located at the Hunan, publish the medium rice field of course of disease degree for experimental field, soil fertility is medium, and irrigation and drainage are convenient.Adopt the bilinear sampling method, 5 points are got in every sub-district, look into 5 caves at every, and 2 blades in the fixing middle part of every strain fix a point to check during investigation.
Come classification according to the rice sheath blight disease grade scale, write down total strain number, diseased plant number, degree of being in a bad way, calculate diseased plant rate, disease index and preventive effect.The rice sheath blight disease grade scale is
0 grade: complete stool is anosis;
1 grade: the 4th blade and following each leaf sheath thereof, blade morbidity (is the 1st leaf with sword-like leave);
3 grades: the 3rd blade and following each leaf sheath thereof, blade morbidity;
5 grades: the 2nd blade and following each leaf sheath thereof, blade morbidity;
7 grades: sword-like leave blade and following each leaf sheath thereof, blade morbidity;
9 grades: the complete stool morbidity, withered ahead of time.
(2) control time and number of times
Test is investigated 4 times altogether, i.e. disease index investigation before the medicine, preventive effect investigation in 10 days behind the 1st medicine, 10 days and preventive effect investigation in 20 days behind 2 medicines.
(3) drug effect computational methods
Sick leaf rate (the %)=sick number of sheets/investigate total number of sheets * 100
Disease index=∑ (the sick numbers of sheets at different levels * relative level numerical value)/(investigating total number of sheets * 9) * 100
Control efficiency (%)=(1-(disease index behind disease index before the blank district medicine * treatment region medicine)/(disease index before disease index behind the blank district medicine * treatment region medicine)) * 100
(4) poisoning investigation method
Whether continuous 7d range estimation medicament has poisoning to crop after the dispenser.
(5) experimental result and analysis
Table 1 chemicals treatment is prevented and treated the effect of rice sheath blight disease
As shown in Table 2, to prevent and treat the effect of rice sheath blight disease more remarkable in the combination that is mixed of 18% thifluzamide+0.05% brassin lactones.Behind the medicine 10 days for the first time, for the second time 10 days and 20 days preventive effects 90.54%, 90.65% and 90.00% the highest behind the medicine, single agent 240 grams per liter thifluzamide SC for the second time behind the medicine 10 days and 20 days preventive effects the highest be 86.59%, 85.77%, 28% well ridge carbendazim SC for the second time behind the medicine preventive effect of 10 days and 20 days be up to 86.06%, 84.56%, the effect of complex preparation significantly is better than two kinds of single agent, not only significantly improved effect, and further prolonged its lasting period for sheath blight fungus.And confirm that under 7 days continuous observation paddy rice is not had poisoning to be produced.Simultaneously, under same dosage, the single agent of 24% thifluzamide SC significantly is better than 28% well ridge carbendazim SC for the effect of banded sclerotial blight, can further determine according to field experiment for the proportioning adjustment of thifluzamide and brassin lactones.
Field trial 2: to the preventive effect of rice green smut
(1) application method
Test dispenser twice altogether, check plot spray equivalent clear water.When making up a prescription, after with low amounts of water medicament fully being dissolved earlier, add suitable quantity of water again and carry out complete stool spraying processing, even spraying.All adopting power driven sprayer, operating pressure during the spray medicine is 2.0～2.3kg/cm
2, shower nozzle aperture 1.2mm.The sub-district spouting liquid is used by 675 liters/hectare, and soup is sprayed application to whole rice uniformly.
(2) investigation method
20 clumps of the parallel great-jump-forward investigation in every sub-district are write down every clump of sick spike number, sick spike number at different levels and total spike number and are calculated disease tassel yield and disease index.
Investigation grade scale following (is unit with the fringe):
0 grade: no infected seed;
1 grade: 1 curve of every fringe;
3 grades: 2 curves of every fringe;
5 grades: 3～5 curves of every fringe;
7 grades: every fringe 6-9 curve;
9 grades: 10 of every fringes are more than the curve;
(3) control time and number of times
Test is investigated 4 times altogether, i.e. disease index investigation before the medicine, preventive effect investigation in 10 days behind the 1st medicine, 10 days and preventive effect investigation in 20 days behind 2 medicines.
(4) drug effect computational methods
Diseased plant rate (%)=sick spike number/investigate total spike number * 100
Disease index=∑ (sick spike numbers at different levels * relative level numerical value)/(investigating total spike number * 9) * 100
Control efficiency (%)=(1-(disease index behind disease index before the blank district medicine * treatment region medicine)/(disease index before disease index behind the blank district medicine * treatment region medicine)) * 100
(5) poisoning investigation method
Whether continuous 7d range estimation medicament has poisoning to crop after the dispenser.
(6) result of the test and analysis
Each handles the effect of control rice green smut table 2
Can know that by table 2 effect of the combination control rice green smut that is mixed of 18% thifluzamide+0.002% brassin lactones is very remarkable.Under same 10 milliliters every mu consumption, the effect of complex preparation significantly is better than two kinds of contrast medicaments, and its quick-acting and lasting effect are all relatively good, and be the most outstanding with lasting effect especially.Complex preparation significantly is better than effect under the low concentration consumption in control efficiency under the consumption of high concentration.20 days best preventive effects reach 91.71% after 10 days best control efficiency behind the 1st, 2 medicine reaches 89.65% and 90.42%, the 2 medicine respectively.And observed in continuous 7 days, dispenser does not have poisoning to the rice field and produces, single agent 240 grams per liter thifluzamide SC, 20 days best preventive effect is 87.73% behind the 2nd medicine, composite dose 20% benzene second tin copper WP for the second time behind the medicine 20 days preventive effect be 85.67%, preventive effect is relatively poor than composite dose of lasting effect of thifluzamide+brassin lactones, but brassin lactones content also wants further field control effectiveness test to confirm.
Field experiment result several times more than comprehensive, of the present invention is that the composite bactericidal composition of active ingredient has obvious synergistic effect with thifluzamide and brassin lactones, fungoids such as rice sheath blight disease and false smut and wheat sharp eyespot or bacillary similar disease had excellent preventive effect, relatively with existing medicament, formulation rate still less, lasting period is longer, residual lower, and strengthened the disease resistance of plant itself greatly, useful to environment, increasing crop yield there is bigger help, simultaneously to crop safety, suggestion is promoted the use of, and in use should be used alternatingly with other different mechanisms medicines, to delay the pesticide resistance of plant.Volume increase to the control peasant of field crop disease is significant.
Claims (7)
1. pesticide sterilizing composite is characterized in that: this bactericidal composition is to be two yuan of pesticidal preparations that are mixed that active ingredient is carried out with thifluzamide and brassin lactones.
2. bactericidal composition according to claim 1 is characterized in that: the percentage by weight of active ingredient thifluzamide and brassin lactones is 80～1: 0.0001～30 in this bactericidal composition.
3. bactericidal composition according to claim 1 is characterized in that: the percentage by weight of active ingredient thifluzamide and brassin lactones is 40～1: 0.0001～5 in this bactericidal composition.
4. bactericidal composition according to claim 1 is characterized in that: active ingredient thifluzamide and the brassin lactones gross weight percentage composition in preparation is 1%-90% in this bactericidal composition.
5. bactericidal composition according to claim 1 is characterized in that: active ingredient thifluzamide and the brassin lactones gross mass percentage composition in preparation is preferably 1%～45% in this bactericidal composition.
6. bactericidal composition according to claim 1 is characterized in that: the formulations of pesticide that bactericidal composition of the present invention can be made according to the method for pesticidal preparations preparation are aqua, wetting powder, suspending agent, microemulsion, aqueous emulsion and water dispersible granules.
7. bactericidal composition according to claim 1 is characterized in that: bactericidal composition of the present invention is mainly used in fungoid land for growing field crops diseases such as preventing and treating rice sheath blight disease, rice blast, false smut, wheat sharp eyespot.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101537871A CN102265837A (en) | 2011-06-09 | 2011-06-09 | Sterilizing composition containing thifluzamide and brassinolide |
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| CN2011101537871A CN102265837A (en) | 2011-06-09 | 2011-06-09 | Sterilizing composition containing thifluzamide and brassinolide |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103262849A (en) * | 2013-04-23 | 2013-08-28 | 青岛农业大学 | Agricultural phytosterol bactericide, and preparation method and application thereof |
| CN103609588A (en) * | 2013-11-26 | 2014-03-05 | 广西安泰化工有限责任公司 | Insecticide containing brassinolide and thiamethoxam |
| WO2014037202A3 (en) * | 2012-09-10 | 2014-06-12 | Syngenta Participations Ag | Pesticidal mixtures |
| CN103918651A (en) * | 2014-04-30 | 2014-07-16 | 吴通 | Pesticide composition for preventing and treating root knot nematode disease and method |
| CN103960241A (en) * | 2014-04-30 | 2014-08-06 | 吴通 | Pesticide composition and method for curing cruciferae crop clubroot |
| CN105130689A (en) * | 2015-10-22 | 2015-12-09 | 金正大诺泰尔化学有限公司 | Silicious rice insecticide and fertilizer mixture and application thereof |
| CN105766915A (en) * | 2014-12-22 | 2016-07-20 | 成都新朝阳作物科学有限公司 | Bactericidal composition containing emodin methyl ether and brassin and preparation method thereof |
| CN105981733A (en) * | 2015-02-06 | 2016-10-05 | 陕西美邦农药有限公司 | Pesticide composition containing antibacterial peptide |
| CN106852333A (en) * | 2016-12-30 | 2017-06-16 | 吴炜 | A kind of microbicide compositions containing ascorbic acid and thifluzamide |
| CN111296440A (en) * | 2020-03-30 | 2020-06-19 | 中国农业科学院棉花研究所 | Seed dressing agent for improving low-temperature tolerance of cotton and using method thereof |
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2011
- 2011-06-09 CN CN2011101537871A patent/CN102265837A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014037202A3 (en) * | 2012-09-10 | 2014-06-12 | Syngenta Participations Ag | Pesticidal mixtures |
| CN103262849A (en) * | 2013-04-23 | 2013-08-28 | 青岛农业大学 | Agricultural phytosterol bactericide, and preparation method and application thereof |
| CN103609588A (en) * | 2013-11-26 | 2014-03-05 | 广西安泰化工有限责任公司 | Insecticide containing brassinolide and thiamethoxam |
| CN103918651A (en) * | 2014-04-30 | 2014-07-16 | 吴通 | Pesticide composition for preventing and treating root knot nematode disease and method |
| CN103960241A (en) * | 2014-04-30 | 2014-08-06 | 吴通 | Pesticide composition and method for curing cruciferae crop clubroot |
| CN105766915A (en) * | 2014-12-22 | 2016-07-20 | 成都新朝阳作物科学有限公司 | Bactericidal composition containing emodin methyl ether and brassin and preparation method thereof |
| CN105981733A (en) * | 2015-02-06 | 2016-10-05 | 陕西美邦农药有限公司 | Pesticide composition containing antibacterial peptide |
| CN105130689A (en) * | 2015-10-22 | 2015-12-09 | 金正大诺泰尔化学有限公司 | Silicious rice insecticide and fertilizer mixture and application thereof |
| CN105130689B (en) * | 2015-10-22 | 2019-03-29 | 金正大诺泰尔化学有限公司 | A kind of siliceous Rice medicine fertilizer and its application |
| CN106852333A (en) * | 2016-12-30 | 2017-06-16 | 吴炜 | A kind of microbicide compositions containing ascorbic acid and thifluzamide |
| CN111296440A (en) * | 2020-03-30 | 2020-06-19 | 中国农业科学院棉花研究所 | Seed dressing agent for improving low-temperature tolerance of cotton and using method thereof |
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Application publication date: 20111207 |