A kind of plant growth regulator that contains gibberellic acid and brassin lactones
Technical field
The invention belongs to plant chemical control field, relate to a kind of application of plant growth regulator on crops that contains gibberellic acid and brassin lactones.
Technical background
Gibberellic acid (gibberellic acid) molecular formula: C
19H
22O
6Chemical name: 2,4a, 7-trihydroxy-1-methyl-8-methylene red mould-3-alkene-1,10-dicarboxylic acids-1,4a-lactone.Gibberellic acid is a broad spectrum activity plant growth regulator, can promote crop growth, makes it premature ripening, improves output, improves quality; Can break the dormancy of organs such as seed, stem tuber and bulb rapidly, stratification; Reduce coming off of flower bud, flower, bell, fruit, improve the fruit fruiting rate or form stenospermocarpy.The plant of life in some 2 years is being bloomed then.Can be widely used in fruit tree, vegetables, cereal crops, economic crops and paddy rice cross breeding breeding.
Brassin lactones (brassinolide) molecular formula: C
29H
50O
6Chemical name: (22R, 23R, 24R)-2 α, 3 α 22,23-tetrahydroxy-β-homogeneous phase-7-oxa-5 alpha-lumistane-6-ketone.Double action with the plant cell division of making and prolongation promotes well developed root system, strengthens photosynthesis, improves the crop chlorophyll content, promotes crop to effective absorption of fertilizer, the good growth of supplemental crop inferior position part.
For target plant, plant growth regulator is the non-nutritive chemical substance of external source, can conduct to site of action usually in plant corpus, just can promote or suppress some link of its life process with very low concentration, makes it to meeting human needs development.Every plant growth regulators has specific purposes, and the application technology requirement is quite strict, only could produce specific effect to target plant down in specific application conditions (comprising extraneous factor).Often change concentration and will obtain opposite result, for example under low concentration, facilitation is arranged, and in the next inhibitory action that becomes of high concentration.Gibberellic acid is different with the brassin lactones mechanism of action, and mutually composite have good synergistic effect within the specific limits.
And about the binary built of gibberellic acid and brassin lactones, do not see relevant report at present at home and abroad as yet.
Summary of the invention
The objective of the invention is to propose a kind of have synergistic function, low, the effective plant growth regulator that contains gibberellic acid and brassin lactones of use cost.
The present invention is achieved through the following technical solutions:
A kind of plant growth regulator that contains gibberellic acid and brassin lactones, the content of gibberellic acid is 0.1~50% in the composition; The content of brassin lactones is 0.001~1%.
The described plant growth regulator that contains gibberellic acid and brassin lactones, the content of gibberellic acid is 1~10% in the composition; The content of brassin lactones is 0.001~0.1%.
The described plant growth regulator that contains gibberellic acid and brassin lactones, the content of gibberellic acid is 1~5% in the composition; The content of brassin lactones is 0.01~0.05%.
The described plant growth regulator that contains gibberellic acid and brassin lactones, the synergistic activity proportioning of gibberellic acid and brassin lactones is 500: 1~10: 1, and preferred proportioning is 300: 1~100: 1, and preferred proportioning is 200: 1~100: 1.
The described plant growth regulator that contains gibberellic acid and brassin lactones, wherein the effective active component content accounts for 0.1~50% of gross weight, is preferably 1~10%.
The described plant growth regulator that contains gibberellic acid and brassin lactones adds auxiliary agent and excipient by method well-known in the art, can be made into water dispersible granules, granulae effervescentes, effervescent tablet.
When making water dispersible granules, composition comprises following constituent content: gibberellic acid 0.1~50%, brassin lactones 0.001~0.1%, dispersant 3~10%, wetting agent 1~8%, disintegrant 5~30%, filler 10~90%.
Be crushed to 325 orders after former medicine, auxiliary agent, filler mixed, place trough type mixing machine; After getting suitable amount of adhesive, mix with the material product in the adding trough type mixing machine; Granulate with the extruding granulator, after the 50-60 degree carries out drying, can make gibberellic acid brassin lactones water dispersible granules product.
When making granulae effervescentes, composition comprises following constituent content: gibberellic acid 0.1~10%, brassin lactones 0.001~0.1%, dispersant 3~10%, wetting agent 1~8%, disintegrant 5~30%, adhesive 0~5%, acid effervescent agent 1~20%, alkaline effervescent agent 1~25%, waterproofing agent 1~10%, filler 10~85%.
With acid effervescent agent, alkaline effervescent agent, waterproofing agent respectively dry, pulverized 100 orders, mix; With ethanol or butanols or isopropyl alcohol with mixture furnishing pasty state; Under vacuum, remove the alcohol of adding, cross 50 mesh sieves, both soft material.The soft material of gained and pesticide original medicine, auxiliary agent and filler are mixed in proportion, obtain the disintegratable shot-like particle, immigration extruding granulator is granulated and can be made gibberellic acid brassin lactones granulae effervescentes product.
When making effervescent tablet, composition comprises following constituent content: gibberellic acid 0.1~10%, brassin lactones 0.001~0.1%, dispersant 3~10%, wetting agent 1~8%, disintegrant 5~30%, adhesive 1~5%, acid effervescent agent 1~20%, alkaline effervescent agent 1~25%, waterproofing agent 1~10%, filler 10~85%.
With acid effervescent agent, alkaline effervescent agent, waterproofing agent respectively dry, pulverized 100 orders, mix; With ethanol or butanols or isopropyl alcohol with mixture furnishing pasty state; Under vacuum, remove the alcohol of adding, cross 50 mesh sieves, both soft material.The soft material of gained and pesticide original medicine, auxiliary agent and filler are mixed in proportion, obtain the disintegratable shot-like particle, enter tablet agent afterwards and carry out compressing tablet and can make gibberellic acid brassin lactones effervescent tablet product.
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 natural products wetting agent and cationic wetting agent, and available tea is withered, in spaonin powder, silkworm excrement, soapberry powder, bay alcohol radical sodium sulphate, lauryl sodium sulfate, neopelex, silicone based, Organic fluoride class, azone class, the fatty alcohol-polyoxyethylene ether one or more.
Described disintegrant is selected from one or more in bentonite, diatomite, ammonium sulfate, calcium chloride, urea, magnesium chloride, aluminium chloride, citric acid, succinic acid, carbonic hydroammonium, crospolyvinylpyrrolidone, sodium carboxymethyl starch, the low replacement carboxylic propyl methocel.
Described adhesive is selected from: one or more in gum Arabic, white dextrin, carboxy-propyl cellulose, xanthan gum, methylcellulose, PAA, polyvinylpyrrolidone, crospolyvinylpyrrolidone, polyethylene glycol, polyvinyl alcohol, anhydrous succinic acid-styrene copolymerized, the polyvinyl acetate.
Described acid effervescent agent is selected from one or more in citric acid, Tartaric acid, fumaric acid, adipic acid, potassium citrate dihydrogen, Tartaric acid potassium dihydrogen, the fumaric acid sodium.
Described alkaline effervescent agent is selected from one or more in sodium carbonate, sodium bicarbonate, potash, saleratus, the calcium carbonate.
Described waterproofing agent is selected from one or more in zeolite, silicic acid, white carbon, talcum powder, bentonite, alundum (Al, diatomite, the dolomol.
Described filler is selected from: one or more in urea, bentonite, diatomite, potassium sulphate, ammonium sulfate, ammonium chloride, potassium chloride, kaolin, talcum powder, lactose, anhydrous sodium sulfate, potassium sulphate, the precipitated calcium carbonate.
The advantage of plant modifying agent composition of the present invention: low toxicity, pollution-free substantially to environment, easy to use, safe; Efficiently, strong, the interior absorption of permeability good, be convenient to store.
Embodiment
Below in conjunction with the further instruction of the present invention of embodiment, the percentage among the embodiment all is weight percentage, but the present invention is not limited thereto.
The embodiment of the invention is the method that adopts indoor synergy mensuration and field trial to combine.
Implementation of an application example one: gibberellic acid and brassin lactones synergy are measured
Test medicine provides by Shaanxi Welch Crop Protection Co., Ltd..
Supplying to study thing is Chinese cabbage, and kind is that agricultural university early resists 60.
With analyzing absolute alcohol two kinds of former medicine dissolvings are mixed with 1000mg/kg solution earlier, are diluted to the mensuration soup of 5 concentration then with deionized water.
1, gibberellic acid: brassin lactones 10: 1
2, gibberellic acid: brassin lactones 100: 1
3, gibberellic acid: brassin lactones 200: 1
4, gibberellic acid: brassin lactones 300: 1
5, gibberellic acid: brassin lactones 400: 1
6, gibberellic acid: brassin lactones 500: 1
Measure the growth of seedling method that adopts.Determination step is as follows:
Select Chinese cabbage seed of the same size and dial in respectively in the culture dish of the 9cm size that is covered with two layers of filter paper, 10 in every ware adds the soup 15ml that configures, and the contrast adding distil water repeats 4 times.Cover the ware lid, the artificial climate that is placed into 28 ± 1 ℃ is indoor, illumination 10 hours.Check that in 6 days height of seedling and root are long.
Statistical analysis as a result:
Result of the test is as shown in table 1:
Reagent agent |
Proportioning |
Germination rate (%) |
The long cm of seedling |
The long cm of root |
Growth rate (%) |
Gibberellic acid: brassin lactones |
10∶1 |
80 |
2.29 |
3.85 |
22.2 |
Gibberellic acid: brassin lactones |
100∶1 |
90 |
2.55 |
4.90 |
25.6 |
Gibberellic acid: brassin lactones |
200∶1 |
100 |
2.79 |
5.91 |
31.5 |
Gibberellic acid: brassin lactones |
300∶1 |
100 |
2.50 |
5.05 |
27.4 |
Gibberellic acid: brassin lactones |
400∶1 |
90 |
2.31 |
4.27 |
21.3 |
Gibberellic acid: brassin lactones |
500∶1 |
90 |
2.28 |
4.16 |
20.17 |
0.01% brassin lactones |
|
80 |
2.16 |
4.05 |
17.6 |
2% gibberellic acid |
|
80 |
2.19 |
3.93 |
17.5 |
Blank |
|
60 |
1.84 |
3.62 |
|
After gibberellic acid and brassin lactones mix use as can be seen from Table 1, can promote seedling and root growth simultaneously, gibberellic acid and brassin lactones be proportioning in 10: 1~500: 1 scope, and stronger synergistic effect is all arranged.Wherein with gibberellic acid: brassin lactones=effect was best in 200: 1.
Implementation of an application example two the implementation of Formulation Example
Embodiment 110.1% gibberellic acid brassin lactones water dispersible granules
Gibberellic acid 10%, brassin lactones 0.1%, alkyl benzene sulfonate calcium salt 1.5%, fatty alcohol-polyoxyethylene ether 1%, urea 20%, soluble starch 2%, precipitated calcium carbonate surplus.
Embodiment 21.51% gibberellic acid brassin lactones water dispersible granules
Gibberellic acid 1.5%, brassin lactones 0.01%, fatty alcohol-polyoxyethylene ether 2.5%, sodium lignin sulfonate 2%, diatomite 20%, soluble starch 2%, ammonium sulfate surplus.
Embodiment 35.5% gibberellic acid brassin lactones granulae effervescentes
Gibberellic acid 5%, brassin lactones 0.5%, polycarboxylate 2%, sodium lignin sulfonate 2%, diatomite 20%, soluble starch 2%, citric acid 12%, calcium carbonate 15%, anhydrous sodium sulfate surplus.
Embodiment 41.05% gibberellic acid brassin lactones granulae effervescentes
Gibberellic acid 1%, brassin lactones 0.05%, polycarboxylate 2%, sodium lignin sulfonate 2%, diatomite 20%, soluble starch 2%, citric acid 12%, sodium bicarbonate 16%, bentonite surplus.
Embodiment 53.01% gibberellic acid brassin lactones effervescent tablet
Gibberellic acid 3%, brassin lactones 0.01%, lignosulfonates 1.5%, bay alcohol radical sodium sulphate 2%, diatomite 20%, white dextrin 2%, adipic acid 15%, potash 18%, ammonium sulfate surplus.
Embodiment 60.52% gibberellic acid brassin lactones effervescent tablet
Gibberellic acid 0.5%, brassin lactones 0.02%, lignosulfonates 1.5%, bay alcohol radical sodium sulphate 2%, diatomite 20%, white dextrin 2%, fumaric acid 12%, sodium carbonate 12%, ammonium sulfate surplus.
Implementation of an application example three gibberellic acid and brassin lactones and the composite synergy apple tree test of pesticide effectiveness thereof
This experimental establishment is in suburb, Baoji, Shaanxi province county, and test medicine is researched and developed, provided by Shaanxi Welch Crop Protection Co., Ltd., contrast medicament 0.01% brassin lactones missible oil (commercial), 4% gibberellic acid missible oil (commercial).
In thanking to florescence dispenser for the first time, preceding the 3rd dispenser of bag plucked in dispenser for the second time behind the bagging, and dispenser is 3 times altogether.Investigate the apple development indexes in 10 days after each dispenser and calculate growth rate.
Experimental result is as follows:
Table 2 gibberellic acid, brassin lactones and the composite synergy apple tree test of pesticide effectiveness thereof
Handle medicament |
Extension rate |
10 days growth rate (%) behind the medicine for the first time |
10 days growth rate (%) behind the medicine for the second time |
10 days growth rate (%) behind the medicine for the third time |
10.1% gibberellic acid brassin lactones water dispersible granules |
2500 times |
26.32 |
25.68 |
28.32 |
1.51% gibberellic acid brassin lactones water dispersible granules |
500 times |
25.97 |
25.34 |
27.26 |
5.5% gibberellic acid brassin lactones granulae effervescentes |
1500 times |
27.62 |
26.28 |
30.36 |
1.05% gibberellic acid brassin lactones granulae effervescentes |
300 times |
28.51 |
28.64 |
31.67 |
3.01% gibberellic acid brassin lactones effervescent tablet |
1000 times |
30.62 |
32.13 |
33.64 |
0.52% gibberellic acid brassin lactones effervescent tablet |
200 times |
31.62 |
30.74 |
30.51 |
0.01% brassin lactones missible oil |
500 times |
16.35 |
20.62 |
18.35 |
4% gibberellic acid missible oil |
1000 times |
15.27 |
18.63 |
19.27 |
As can be seen from Table 2, can obviously improve the apple development rate after gibberellic acid and brassin lactones are composite, promote well developed root system, promote crop to effective absorption of fertilizer, improve fruit-setting rate.
Above-described embodiment of the present invention does not constitute the restriction to protection domain of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.