CN103719105A - Plant growth adjusting composition as well as preparation and application thereof - Google Patents
Plant growth adjusting composition as well as preparation and application thereof Download PDFInfo
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- CN103719105A CN103719105A CN201410025301.XA CN201410025301A CN103719105A CN 103719105 A CN103719105 A CN 103719105A CN 201410025301 A CN201410025301 A CN 201410025301A CN 103719105 A CN103719105 A CN 103719105A
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Abstract
The invention discloses a plant growth adjusting composition as well as a preparation and an application thereof. The plant growth adjusting composition is composed of following components in parts by weight: A: 1-9 parts of uniconazole and B: 1 part of mepiquat chloride. According to the plant growth adjusting composition, the mepiquat chloride and the uniconazole can be effectively mixed and the growth inhibition effect on plants can also be expressed.
Description
Technical field
The present invention relates to a kind of plant growth regualting composition, preparation and application thereof.
Background technology
Plant growth regulator is a kind of ectogenic non-nutritive chemical substance, and it can conduct to site of action conventionally in plant corpus, with lower concentration, just can promote or suppress some link in plant life process, makes it to the wish development that meets human needs; Due to the specific function effect of plant growth regulator, therefore it distinguishes over general chemical fertilizer or agricultural chemicals.
In plant growth regulator, there is a compounds can delay the growth of plant, be plant growth retardent, mainly include: chlormequat, first piperazine, uniconazole P, uniconazole P, daminozide.
First piperazine has another name called mepiquat chloride, and chemical name is 1,1-lupetidine; Its chemical structural formula is as follows:
It inhales conduction in having preferably to plant.Can promote the reproductive growth of plant; Suppress cauline leaf overgrowing, control side shoot, mould ideotype, improve root quantity and vigor, make fruit weightening finish, quality improves.Be widely used in the crops such as cotton, wheat, paddy rice, peanut, corn, potato, grape, vegetables, beans, flowers.First piperazine is to suppress the biosynthesis of gibberellin GA in plant corpus to the mechanism of action of plant, and it suppresses target position in gibberellin GA biosynthetic early stage.
In addition, uniconazole P equally also belongs to the plant growth regulator that suppresses plant growth; Its chemical structural formula is as follows:
Uniconazole P belongs to broad spectrum activity, efficient plant growth regulator, has sterilization and herbicide effect concurrently, is gibberellin synthetic inhibitor.Have to control and nourish and grow, suppress cell elongation, shorten internode, dwarfed plant, promote lateral bud growth and bud to form, promote the effect of resistance.Be applicable to paddy rice, wheat, increase is tillered, and controls plant height, improves lodging tolerance.That for fruit tree control, nourishes and grows is tree-like.For ornamental plants control strain shape, promote flower bud differentiation and bloom etc. more.The difference of first piperazine and uniconazole P is, uniconazole P to the inhibition target position of plant in gibberellin GA biosynthetic mid-term.
The plant growth regualting composition of existing inhibition plant growth can not be given full play to the effect of each effective component in composition conventionally, does not have the effect of Synergistic.
In addition, existing when above-mentioned plant growth regualting composition is prepared into preparation and uses, conventionally can be because the polarity difference of two kinds of effective components be larger, and cause that both differ greatly by the solubility property in same solvent.Therefore, when the composition larger polarity difference of above-mentioned effective component is re-dubbed to preparation, the existing mode that can select is while being made into preparation, to add a large amount of emulsifier etc. to the disadvantageous composition of environment, otherwise when above-mentioned two kinds of active ingredients are made to complex preparation jointly, because its dissolubility difference is larger, very easily there is Ostwald ripening (Ostwald ripening) phenomenon, destroy suspension system, between particle, reunite, thereby cause active ingredient can deposit and produce precipitation, the dispersiveness that causes being scattered in the active ingredient in solvent is poor.Thereby affect the drug effect of gained preparation, cause plant not have the effect of comparatively desirable inhibition growth.
Summary of the invention
In view of this, the invention provides a kind of plant growth regualting composition and preparation thereof that contains uniconazole P and first piperazine, described composition can play two kinds of active ingredients the effect of Synergistic for the growth that suppresses plant; Simultaneously preparation provided by the invention can reduce in use uniconazole P and first piperazine and causes the amount of its precipitation producing because of dissolubility difference in same solvent or thinner, thereby improve active ingredient uniconazole P and the dispersiveness of first piperazine in same solvent or same thinner, avoided the use of a large amount of hazardous solvents in microemulsion, missible oil, safety and environmental protection.
For solving above technical problem, the technical scheme of first aspect provided by the invention is to adopt a kind of plant growth regualting composition, and said composition is composed of the following components, and each component is counted by weight:
A, 1-9 weight portion uniconazole P; With
B, 1 weight portion first piperazine.
Preferably, described each component is counted by weight:
A, 3-8 weight portion uniconazole P; With
B, 1 weight portion first piperazine.
Preferably, described each component is counted by weight:
A, 5 weight portion uniconazole Ps; With
B, 1 weight portion first piperazine.
The technical scheme of second aspect provided by the invention be aforementioned arbitrary plant growth regualting composition for delaying the application of crop growth, described crops are any one in tobacco, fruit tree, wheat, lawn.
Preferably, aforesaid plant growth regualting composition is as the application of lawn dwarfing agent.
The technical scheme of the third aspect provided by the invention is a kind of plant growth regulating composition, it is characterized in that, the formulation of said preparation is suspending agent, except containing aforementioned arbitrary plant growth regualting composition, also includes following component, and each component is counted by weight:
C, 0.1-1 weight portion dispersant;
D, 0.1-1 weight portion wetting agent;
E, 0.01-0.2 weight portion thickener; With
F, water
In gained suspending agent, the gross weight of A and B is that preparation all the components is the 5%-60% of A-F gross weight.
Preferably, described dispersant is selected from least one in phenol polyethenoxy ether, dispersing agent MF, polycarboxylate, alkylphenol-polyethenoxy formaldehyde condensation products sulphate, alkylnaphthalene sulfonate, phosphate.
Preferably, described wetting agent is selected from least one in lauryl sodium sulfate, polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether, castor oil polyoxyethylene ether, phosphate.
Preferably, described thickener is xanthans and Magnesiumaluminumsilicate.
Preferably, described plant growth regulating composition also contains following component, and each component is counted by weight:
G, 0.05-0.2 weight portion defoamer, described defoamer is silicone based;
H, 0.1-1 weight portion antifreeze, described antifreeze is selected from least one in ethylene glycol, propane diols, glycerine;
In gained suspending agent, the gross weight of A and B is that preparation all the components is the 5%-60% of A-H gross weight.
The technical scheme of fourth aspect provided by the invention is the application of aforesaid arbitrary plant growth regulating composition as lawn dwarfing agent.
Compared with prior art, being described in detail as follows of plant growth regualting composition of the present invention and preparation:
The present invention adopts first piperazine and uniconazole P is re-dubbed to composition use,
The existing occupation mode of first piperazine of the present invention and uniconazole P is independent use, or use etc. combines with remaining plant growth regulating substance, but and there are no first piperazine being mixed with uniconazole P and with the occupation mode of the form of composition, the composition product also mixing there are no both.
The inventor finds through research fully, both common combinations are used, the part by weight of between is between certain ratio time, and the effect that both can be delayed to crop growth is all brought into play, thereby avoids occurring the antagonism that two kinds of materials easily occur after mixed; In addition, under constant weight ratio, both are applied to after plant jointly as composition, have the effect of Synergistic compared with the mode of using separately separately.
The inventor confirms through a large amount of experiment, when first piperazine and uniconazole P parts by weight are separately adjusted to 1 weight portion and 1-9 weight portion, and the effect that the effect during with respect to original independent use is non-antagonism for the effect of plant of the composition of gained.Thereby resulting composition can be given full play to the beneficial effect for plant separately, be the drug effect of resulting composition when having given full play to single material and using, first piperazine can suppress nourishing and growing of crop, and uniconazole P has to crop the effect of nourishing and growing of inhibition equally.Especially under both the parts by weight ratio the present invention further provides, when parts by weight ratio is between the two 1:3-8, both the mixed Synergistic of effects also can play to(for) the growths that promote plant.
Further, the aforesaid plant growth regualting composition of the present invention is delaying on crop growth except having the effect of Synergistic, and its dwarfing effect for lawn is more outstanding.Therefore, plant growth regualting composition of the present invention can be further used as lawn dwarfing agent use in application.
In addition, the present invention also provides the plant growth regulating composition that aforementioned arbitrary plant growth regualting composition is prepared from simultaneously.In this plant growth regulating composition except adopting the composite material of aforementioned two kinds of part by weight, also increased the composition such as dispersant, wetting agent, thickener, defoamer, antifreeze, preservative, water that applies specifically to this area, the type of gained preparation is suspending agent simultaneously.
The present invention adopts uniconazole P and first piperazine is re-dubbed to a kind of composition that can be dissolved in same solvent or thinner jointly, due to uniconazole P and first piperazine dissolubility difference larger, when both are dissolved in same solvent especially in water, both always appear at the difference of solvability in same solvent, thereby cause the appearance of Ostwald ripening (Ostwald ripening) phenomenon, thereby the active constituent content that causes uniconazole P and first piperazine to disperse is lower in solvent.
Described Ostwald ripening (Ostwald ripening) phenomenon is when different big or small crystal grain is in same medium, and for little crystal grain, because its solvability is larger, its medium is unsaturated solution, therefore little crystal grain constantly dissolves and disappears; The solvability of large crystal grain is less, and its medium is supersaturated solution, and the crystallization on large crystal grain of the molecule in solution, causes large crystal grain increasing, thus the precipitation of generation.For the present invention, if no matter the composition that uniconazole P and first piperazine are made is further processed into the complex preparation of solid or the complex preparation of liquid, both all need to be dissolved in same solvent or thinner and just can use plant, it take water as solvent, is example, under the impact of Ostwald ripening (Ostwald ripening) phenomenon, because the solvability of first piperazine in water is greater than 100mg/L, and the solvability of uniconazole P in water is only 26mg/L, both dissolubility differences are larger, the crystal grain of first piperazine will dissolve gradually and constantly disappear, the crystal grain of uniconazole P is because solvability is less, and the aqueous solution is supersaturated solution to it, thereby cause the molecule crystallization on the crystal grain of uniconazole P in solution, thereby make uniconazole P finally in water, produce precipitation, cause the content of the active ingredient that uniconazole P and first piperazine disperse in solvent lower, bad dispersibility, be applied to like this drug effect producing after each Plants or crop just poor.
The present invention is in order to address the above problem, in the plant growth regualting composition that contains uniconazole P and first piperazine of the present invention, added certain dispersant and wetting agent, dispersant of the present invention is at least one wetting agent that is selected from alkylphenol polyoxyethylene, dispersing agent MF, polycarboxylate, alkylphenol-polyethenoxy formaldehyde condensation products sulphate, alkylnaphthalene sulfonate, phosphatic dispersant and at least one and is selected from lauryl sodium sulfate, polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether, castor oil polyoxyethylene ether, phosphate.
Selection for dispersant and wetting agent in the present invention just can draw after many experiments, because the selection of dispersant and wetting agent or usage amount are improper, just can not form good static steric hindrance and sterically hindered to the crystal grain disperseing in solution, thereby the constantly coalescent formation coagulation phenomenon of crystal grain of at this moment disperseing, therefore the inventor finds dispersant of the present invention to form good static steric hindrance and sterically hindered to the crystal grain of the uniconazole P in same solvent in the present invention and first piperazine by a large amount of experiments.The dispersant of the selected use of the present invention can reduce the phenomenon that precipitation appears in the poor large crystal grain of solvability preferably, the content of the active ingredient that raising uniconazole P and first piperazine disperse in same solvent especially water, thus improve drug effect.
In the present invention, adopt institute's dispersant at least one is selected from polycarboxylate, alkylphenol polyoxyethylene, naphthalene or alkyl naphthalene formaldehyde condensate sulfonates, lignin and derivative sulfonate thereof, sodium methylene bis-naphthalene sulfonate, dispersing agent MF, alkylphenol-polyethenoxy formaldehyde condensation products sulphate, phosphate.The selected dispersant of the present invention is for having hydrophobic skeleton and hydrophilic low molecular structure, both copolymerization form have comb shape feature molecular structure, therefore above-mentioned dispersant can wrap up first piperazine crystal grain larger solvability as possible and suspend, thereby it is not directly contacted with solvent, avoid it to be constantly dissolved in solvent, thereby avoid forming the supersaturated solution to uniconazole P, so just can avoid better occurring Ostwald ripening (Ostwald ripening) phenomenon, the content of the active ingredient that raising uniconazole P and first piperazine disperse in same solvent, thereby improve better uniconazole P and first piperazine drug effect.
In addition, the inventor also finds in preparation of the present invention, to add xanthans and Magnesiumaluminumsilicate can play the effect of certain thickener especially.Xanthans and Magnesiumaluminumsilicate can increase the concentration of suspending agent, thereby effectively avoid active ingredient in suspending agent, under the effect of gravity, sedimentation occurs, and avoid causing the phenomenon of sediment caking, are conducive to keep the stability of suspending agent.
In addition, plant growth regulating composition of the present invention also can be selected to add as insecticides adjuvants such as antifreeze, defoamer and pH adjusting agents.The inventor finds especially, when described antifreeze is propane diols, can effectively reduce the toxicity of plant growth regulating composition of the present invention; When described defoamer is while being silicone based.
In addition, the inventor is special discovery also, and plant growth regulating composition of the present invention has better growth inhibition effect to some specific crop, for example, in tobacco, fruit tree, flowers or lawn any one; More special, plant growth regulating composition of the present invention, when being applied to lawn, can play compared with the better growth inhibition effect of other crops.
In view of above-mentioned effect explanation, plant growth regulating composition of the present invention can be applied becomes lawn dwarfing agent.
Plant growth regulating composition of the present invention can adopt the conventional method of existing preparation to be prepared from.
Embodiment
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment mono-: Colby equation is measured effect experiment
Test A:
1, experimental subjects: tobacco
2, experimental technique: with reference to < < farm-chemical indoor determination test rule NY/T2061.2-2011 > > plant growth regulator part 2: promote, suppress plant strain growth test, pot-culture method;
3, data statistic analysis: adopt DPS6.55 (Duncan) statistical software to analyze.According to test data, calculate average plant height C1, with respect to the average plant height reduced rate T1(% of blank).
4, evaluation method: utilize Colby formula to obtain the average plant height reduced rate E1 after theoretical using with.The theory index E1 that deliberated index T1 after practical measurement mixed draws with Colby formula compares, real value is greater than the effect for Synergistic of theoretical value 12%, the effect for be added of the difference that real value is greater than theoretical value between 0%-12%, what real value was less than theoretical value is antagonism.
Colby formula: E=x+y-xy/100; X, y are the actual gaining rate of the alone each component gained of difference.
5, measurement result
Table one---single medicine or composition are applied to the laboratory test results of tobacco plant
* 80g/kg represents that working concentration is that in table, data are all multiplied by 80g/kg.
Test B:
1, experimental subjects: cold season mixed seeding lawn
2, experimental technique: with reference to < < farm-chemical indoor determination test rule NY/T2061.2-2011 > > plant growth regulator part 2: promote, suppress plant strain growth test, pot-culture method;
3, data statistic analysis: adopt DPS6.55 (Duncan) statistical software to analyze.According to test data, calculate average plant height C1, with respect to the average plant height reduced rate T1(% of blank).
4, evaluation method: utilize Colby formula to obtain the average plant height reduced rate E1 after theoretical using with.The theory index E1 that deliberated index T1 after practical measurement mixed draws with Colby formula compares, real value is greater than the effect for Synergistic of theoretical value 12%, the effect for be added of the difference that real value is greater than theoretical value between 0%-12%, what real value was less than theoretical value is antagonism.
Colby formula: E=x+y-xy/100; X, y are the actual gaining rate of the alone each component gained of difference.
5, measurement result
Table two---single medicine or composition are applied to the laboratory test results on lawn
* 80g/kg represents that working concentration is that in table, data are all multiplied by 80g/kg.
In addition, the inventor has also carried out the experimental technique identical with embodiment mono-to other plant if tree, wheat etc., and the experimental data finally obtaining and the experimental data of tobacco are comparatively approaching.
From above-mentioned result of the test, in the composition of first piperazine and uniconazole P composition, when its both part by weight is 1:1-9, resulting composition compared with one pack system medicament, the effect that act as Synergistic of its growth of promotion to plant; Especially when the part by weight of first piperazine and uniconazole P is 1:3-8, its effect that suppresses plant growth is comparatively obvious, is the more than 12% of blank gaining rate; In addition, when the part by weight of first piperazine and uniconazole P is 1:5, the effect of the inhibition plant growth of resulting composition is the most obvious, is 15.135% and 17.189% of blank gaining rate.
More obviously, from above-mentioned test data, can draw, composition of the present invention is used on lawn to be had with respect to the more obvious inhibiting effect of other plant.
Embodiment bis----pharmaceutical formulation preparation test
Component ratio in each formula is prepared according to following table, and the each formula of gained is all prepared into suspending agent.
Table three
In upper table ,+100 expression water mend the gross weight umber of formulation components to 100 weight portions;
Dispersant, wetting agent, thickener, antifreeze, defoamer, preservative in formula 1-3 and 10-21 are respectively nonionic alkyl phenyl ethers, anionic alkyl naphthalene sulfonic acid salt, xanthans and aluminium-magnesium silicate, propane diols, silicone based, Kathon CG;
Dispersant, wetting agent, thickener, antifreeze, defoamer, preservative in formula 4-9 is the existing insecticides adjuvant except composition in other formulas in upper table;
Carry out respectively field control effectiveness test by each above-mentioned gained group, take the microemulsion (contrast 2) of the first piperazine uniconazole P (25 ︰ 1) of clear water (contrast 1) and prior art scheme 26% as contrasting;
The suspending agent of preparing gained according to existing general preparation method by formula rate in upper table is applied to the field control effectiveness test of Different Crop, measures the growth inhibition index of Different Crop under the effect of different formulations suspending agent.
Embodiment tri-: field control effectiveness test
Test A:
1, experimental subjects: wheat
2, test period: at the beginning of from early March to 4 month
3, test site: Pingquan town, Jianyang of Sichuan city
4, experimental technique: cauline leaf spray-on process
5, measurement result: the 28th day determination data after dispenser
6, dispenser period: spray complete stool early stage in one one heart stage of leaf of wheat to jointing
Table four-wheat experimental result
Test B:
1, experimental subjects: cold season mixed seeding lawn
2, test period: at the beginning of from early March to 4 month
3, test site: Pingquan town, Jianyang of Sichuan city.
4, experimental technique: cauline leaf spray-on process, effective ingredient consumption is all identical with experiment A with medication area;
5, measurement result: the 28th day determination data after dispenser
6, dispenser period: in the five leaf phases of lawn, spray medicine cuts the grass on a lawn the previous day, and complete stool sprays
Table five-lawn result of the test
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred embodiment should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a plant growth regualting composition, is characterized in that, said composition is composed of the following components, and each component is counted by weight:
A, 1-9 weight portion uniconazole P; With
B, 1 weight portion first piperazine.
2. plant growth regualting composition according to claim 1, is characterized in that: described each component is counted by weight:
A, 3-8 weight portion uniconazole P; With
B, 1 weight portion first piperazine.
3. plant growth regualting composition according to claim 1, is characterized in that: described each component is counted by weight:
A, 5 weight portion uniconazole Ps; With
B, 1 weight portion first piperazine.
4. in claim 1-3, the plant growth regualting composition described in arbitrary claim is for delaying the application of crops plant growth, and described crops are any one in tobacco, fruit tree, wheat, lawn.
5. a plant growth regulating composition, is characterized in that, the formulation of said preparation is suspending agent, the plant growth regualting composition in containing claim 1-3 described in arbitrary claim, also includes following component, and each component is counted by weight:
C, 0.1-1 weight portion dispersant;
D, 0.1-1 weight portion wetting agent;
E, 0.01-0.2 weight portion thickener; With
F, water;
In gained suspending agent, the gross weight of A and B is that preparation all the components is the 5%-60% of A-F gross weight.
6. plant growth regulating composition according to claim 5, is characterized in that: described dispersant is selected from least one in phenol polyethenoxy ether, dispersing agent MF, polycarboxylate, alkylphenol-polyethenoxy formaldehyde condensation products sulphate, alkylnaphthalene sulfonate, phosphate.
7. plant growth regulating composition according to claim 5, is characterized in that: described wetting agent is selected from least one in lauryl sodium sulfate, polyoxyethylene nonylphenol ether, fatty alcohol-polyoxyethylene ether, castor oil polyoxyethylene ether, phosphate.
8. plant growth regulating composition according to claim 5, is characterized in that: described thickener is xanthans and aluminium-magnesium silicate.
9. plant growth regulating composition according to claim 5, is characterized in that: described plant growth regulating composition also contains following component, and each component is counted by weight:
G, 0.05-0.2 weight portion defoamer, described defoamer is silicone based;
H, 0.1-1 weight portion antifreeze, described antifreeze is selected from least one in ethylene glycol, propane diols, glycerine;
In gained suspending agent, the gross weight of A and B is that preparation all the components is the 5%-60% of A-H gross weight.
10. plant growth regulating composition claimed in claim 5 is as the application of lawn dwarfing agent.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105669306A (en) * | 2016-01-13 | 2016-06-15 | 山西省农业科学院棉花研究所 | Plant shape-control production-increasing preparation for oilseed rape, preparation method thereof and application thereof |
| CN106135213A (en) * | 2016-07-01 | 2016-11-23 | 北京天辰云农场科技股份有限公司 | A kind of Semen Tritici aestivi hot-dry wind tolerance spraying resistant to lodging liquor and preparation and application thereof |
| CN106883008A (en) * | 2016-12-31 | 2017-06-23 | 新昌县拜特夫农业科技有限公司 | Peanut promotees strong agent and preparation method and application |
| CN110506750A (en) * | 2019-09-19 | 2019-11-29 | 江苏徐淮地区淮阴农业科学研究所 | A kind of composition preventing wheat early ageing, conditioner and preparation method thereof, application and application method |
| CN113207525A (en) * | 2021-04-13 | 2021-08-06 | 中国热带农业科学院南亚热带作物研究所 | Novel mango flower formation regulation and control method |
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| CN1230340A (en) * | 1999-03-16 | 1999-10-06 | 新疆农业科学院微生物应用研究所 | Synergistic mepiquat chloride and its production |
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| CN1230340A (en) * | 1999-03-16 | 1999-10-06 | 新疆农业科学院微生物应用研究所 | Synergistic mepiquat chloride and its production |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105669306A (en) * | 2016-01-13 | 2016-06-15 | 山西省农业科学院棉花研究所 | Plant shape-control production-increasing preparation for oilseed rape, preparation method thereof and application thereof |
| CN106135213A (en) * | 2016-07-01 | 2016-11-23 | 北京天辰云农场科技股份有限公司 | A kind of Semen Tritici aestivi hot-dry wind tolerance spraying resistant to lodging liquor and preparation and application thereof |
| CN106883008A (en) * | 2016-12-31 | 2017-06-23 | 新昌县拜特夫农业科技有限公司 | Peanut promotees strong agent and preparation method and application |
| CN110506750A (en) * | 2019-09-19 | 2019-11-29 | 江苏徐淮地区淮阴农业科学研究所 | A kind of composition preventing wheat early ageing, conditioner and preparation method thereof, application and application method |
| CN113207525A (en) * | 2021-04-13 | 2021-08-06 | 中国热带农业科学院南亚热带作物研究所 | Novel mango flower formation regulation and control method |
| CN113207525B (en) * | 2021-04-13 | 2022-07-15 | 中国热带农业科学院南亚热带作物研究所 | Novel mango flower formation regulation and control method |
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Application publication date: 20140416 |