NO158442B - PROCEDURE AND PREPARATION FOR PLANT GROWTH REGULATION. - Google Patents
PROCEDURE AND PREPARATION FOR PLANT GROWTH REGULATION. Download PDFInfo
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- NO158442B NO158442B NO84844358A NO844358A NO158442B NO 158442 B NO158442 B NO 158442B NO 84844358 A NO84844358 A NO 84844358A NO 844358 A NO844358 A NO 844358A NO 158442 B NO158442 B NO 158442B
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- Prior art keywords
- plants
- benzofuran
- treated
- dihydro
- hydroxy
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- 238000000034 method Methods 0.000 title claims description 9
- 230000008635 plant growth Effects 0.000 title claims description 8
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- Agricultural Chemicals And Associated Chemicals (AREA)
Description
Foreliggende oppfinnelse angår en fremgangsmåte og et preparat for regulering av veksten av markplanter. The present invention relates to a method and a preparation for regulating the growth of field plants.
Bakgrunn for oppfinnelsen Background for the invention
Syntetiske forbindelser, i første rekke 3-3-indolyl-3-eddiksyre og derivater derav som har auxinaktivitet, er kjent for å virke gjennom bladene eller røttene på planter. Disse forbindelser kan anvendes som plantevekstregulatorer, men deres effektivitet er relativt lav ettersom auxintype-forbindelser hurtig spaltes i plantecellene av peroxydasetype-enzymer. Synthetic compounds, primarily 3-3-indolyl-3-acetic acid and derivatives thereof which have auxin activity, are known to act through the leaves or roots of plants. These compounds can be used as plant growth regulators, but their effectiveness is relatively low as auxin-type compounds are rapidly cleaved in the plant cells by peroxidase-type enzymes.
En annen gruppe av preparater som stimulerer den indre syntese av auxiner (auxin-fremkallere), utgjøres av 2-klorethylfosfonsyre og derivater derav. Ifølge FR-PS 2 322 544 utviser disse forbindelser bl.a. auxinaktivitet (forøket plantevekst), påvirker frøspiring, stimulerer fruktmodning og blomstring, samvirker med kjente plantevekstregulatorer, øker resistensen mot plantesykdommer etc. Ved anvendelse av 2-klorethylfosfonsyre fremkaller det frigjorte ethylen den indre auxinsyntese. Ved det forøkede plantehormonnivå for-økes også syntesen av enzymer som regulerer fysiologiske prosesser, f.eks. aktiviteten av spaltende enzymer (per-oxydaser). På grunn av denne effekt er den nødvendige mengde av 2-klorethylfosfonsyre høyere pr. hektar, og hvis behandlingen ikke utføres i et egnet veksttrinn for plantene, kan depresjons-, visnings- og nekrotiske symptomer oppstå. Another group of preparations which stimulate the internal synthesis of auxins (auxin inducers) is made up of 2-chloroethylphosphonic acid and its derivatives. According to FR-PS 2 322 544, these compounds show i.a. auxin activity (increased plant growth), affects seed germination, stimulates fruit ripening and flowering, interacts with known plant growth regulators, increases resistance to plant diseases, etc. When using 2-chloroethylphosphonic acid, the liberated ethylene induces internal auxin synthesis. The increased plant hormone level also increases the synthesis of enzymes that regulate physiological processes, e.g. the activity of splitting enzymes (peroxidases). Because of this effect, the required amount of 2-chloroethylphosphonic acid is higher per hectare, and if the treatment is not carried out at a suitable growth stage for the plants, depression, wilting and necrotic symptoms can occur.
Beskrivelse av oppfinnelsen Description of the invention
Foreliggende oppfinnelse angår en fremgangsmåte for regulering av veksten av enfrøbladede og tofrøbladede markplanter, og et plantevekstregulerende preparat uten skadelige bivirkninger (uten fytotoksisitet). The present invention relates to a method for regulating the growth of monocotyledonous and dicotyledonous field plants, and a plant growth regulating preparation without harmful side effects (without phytotoxicity).
Fremgangsmåten ifølge oppfinnelsen er kjennetegnet ved at plantene i den vegetative fase behandles med 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran og/eller 2,2-dimethyl-2,3-dihydro-3-keto-7-hydroxy-benzofuran i en mengde på 0,3 til 4,0 kg/ha og i en mengde på 0,5-5,0 l/ha av vannløselige salter eller metallchelater i en konsentrasjon på 3-500 g/l inneholdende spor- og/eller mesoelementer slik som bor, magnesium, svovel (i form av sulfat), mangan, kopper, sink og molybden, og samtidig eller på forhånd med 2-klorethylfosfonsyre eller estere eller salter derav, i en mengde på 0,5-3,0 kg/ha. The method according to the invention is characterized by the plants being treated in the vegetative phase with 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran and/or 2,2-dimethyl-2,3-dihydro-3-keto- 7-hydroxy-benzofuran in an amount of 0.3 to 4.0 kg/ha and in an amount of 0.5-5.0 l/ha of water-soluble salts or metal chelates in a concentration of 3-500 g/l containing trace and/or meso elements such as boron, magnesium, sulfur (in the form of sulphate), manganese, copper, zinc and molybdenum, and simultaneously or beforehand with 2-chloroethylphosphonic acid or esters or salts thereof, in an amount of 0.5 -3.0 kg/ha.
Fra saltene i sporelementene kan egnede preparater fremstilles ved anvendelse av kompleksdannende syrer, slik som ethylendiamintetraeddiksyre, nitrilo-trieddiksyre, sitronsyre, eddiksyre, K-parafenol-lignosulfonat eller glycin. From the salts in the trace elements, suitable preparations can be prepared by using complexing acids, such as ethylenediaminetetraacetic acid, nitrilotriacetic acid, citric acid, acetic acid, K-paraphenol lignosulphonate or glycine.
Man går frem ved å behandle plantene samtidig med flere aktive bestanddeler, eller når det anvendes mer aktive bestanddeler, behandles planten først med 2-klorethylfosfonsyre, deretter med benzofuranderivater og spor- og/eller mesoelementene. Som et resultat av behandlingen med høyere doser både for enfrøbladede og tofrøbladede markplanter finner det sted en nedsettelse av vekst, mens i andre til-feller kan veksten forøkes eller fruktutbyttet kan forøkes. Det er viktig å behandle plantene med de ovenfor angitte aktive bestanddeler i det vegetative trinn, idet den ønskede effekt ellers ikke kan oppnåes. One proceeds by treating the plants simultaneously with several active ingredients, or when more active ingredients are used, the plant is first treated with 2-chloroethylphosphonic acid, then with benzofuran derivatives and the trace and/or meso elements. As a result of the treatment with higher doses both for monocotyledonous and dicotyledonous field plants there is a reduction in growth, while in other cases growth can be increased or fruit yield can be increased. It is important to treat the plants with the above-mentioned active ingredients in the vegetative stage, as the desired effect cannot otherwise be achieved.
Oppfinnelsen angår enn videre et plantevekstregulerende preparat for regulering av veksten av planter i den vegetative fase, hvilket preparat er kjennetegnet ved at det inneholder 1-60 vekt% 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran og/eller 2,2-dimethyl-2,3-dihydro-3-keto-7-hydroxy-benzofuran i form av løselige salter og chelat-spor- og/eller mesoelementer slik som bor, magnesium, svovel (i form av sulfat), mangan, kopper, sink, molybden, og 2-klorethylfosfonsyre, salter eller estere derav, eventuelt urea eller ammoniumsalt, faste og/eller væskeformige bærere og eventuelt overflateaktive midler. The invention further relates to a plant growth-regulating preparation for regulating the growth of plants in the vegetative phase, which preparation is characterized by containing 1-60% by weight of 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran and/ or 2,2-dimethyl-2,3-dihydro-3-keto-7-hydroxy-benzofuran in the form of soluble salts and chelate trace and/or meso elements such as boron, magnesium, sulfur (in the form of sulphate), manganese, copper, zinc, molybdenum and 2-chloroethylphosphonic acid, salts or esters thereof, optionally urea or ammonium salt, solid and/or liquid carriers and optionally surfactants.
Blant faste bærere kan nevnes kaolin, bentonitt, silicagel, dolomitt, calciumcarbonat, talkum, og blant væskeformige bærere kan nevnes aromatiske, cycloaromatiske løs-ningsmidler, mineraloljefraksjoner og alkoholer. Overflateaktive midler kan være ikke-ioniske og anioniske, slik som anioniske overflateaktive salter av alifatiske sulfonsyre-estere, natriumsalt av laurylsulfat, salter av aromatiske sulfonerte forbindelser slik som natriumsaltet av dodecyl-benzensulfonat, natriumsalter av lignosulfonat, og som ikke-ioniske overflateaktive midler kan nevnes fettalkoholderi-vater av ethylenoxyd eller propylenoxyd, fett og oljer, alkylfenoler, polyethoxylerte eller oxypropylerte derivater derav. Preparatene kan formuleres som emulgerbare konsentrater, fuktbare pulvere eller forstøvningsmidler, og de konsentrerte preparater fortynnes før bruk til 0,01-5% sprøyt-bare, fortynnede preparater. Dosen av preparatene er 2-5 kg pr. hektar, men lavere og høyere doser kan anvendes for spesielle formål. Solid carriers include kaolin, bentonite, silica gel, dolomite, calcium carbonate, talc, and liquid carriers include aromatic, cycloaromatic solvents, mineral oil fractions and alcohols. Surfactants can be nonionic and anionic, such as anionic surfactant salts of aliphatic sulfonic acid esters, sodium salt of lauryl sulfate, salts of aromatic sulfonated compounds such as the sodium salt of dodecylbenzenesulfonate, sodium salts of lignosulfonate, and as nonionic surfactants can fatty alcohol derivatives of ethylene oxide or propylene oxide, fats and oils, alkylphenols, polyethoxylated or oxypropylated derivatives thereof are mentioned. The preparations can be formulated as emulsifiable concentrates, wettable powders or nebulizers, and the concentrated preparations are diluted before use to 0.01-5% sprayable, diluted preparations. The dose of the preparations is 2-5 kg per hectare, but lower and higher doses can be used for special purposes.
Som enfrøbladede planter kan nevnes korn og mais, og som tofrøbladede planter kan nevnes solsikke, raps, sukker-roe, soya, erter og bønner. Ved behandling av korn kan pre-paratet anvendes senest inntil tilsynekomst av den andre leddknute, og når det gjelder mais inntil det 8. bladstadium, dvs. inntil starten av differensieringen av den voksende kolbe. Ved behandling av solsikke anvendes preparatene i 6-8 bladparstadium inntil avslutningen av blomsterbunndannelsen. Monocots include corn and maize, and dicots include sunflower, rapeseed, sugar beet, soya, peas and beans. When treating grain, the preparation can be used at the latest until the appearance of the second joint node, and in the case of maize until the 8th leaf stage, i.e. until the start of the differentiation of the growing cob. When treating sunflowers, the preparations are used in the 6-8 leaf pair stage until the end of flower base formation.
Det er funnet at benzofuranderivatene sammen med 2-klorethylfosfonsyre utviser glimrende plantevekstregulerende aktivitet hvis mikroelementene og mesoelementene som er nød-vendige for disse prosesser, er tilstede, som ved inntreng-ning i planten danner biologisk aktive komplekser med enzym-proteinet slik at hormon og enzymnivået i planten kan bringes i likevekt, og den depresjon som ledsager bruk av plantevekstregulatorer, kan elimineres ved riktig bruk. It has been found that the benzofuran derivatives together with 2-chloroethylphosphonic acid exhibit excellent plant growth regulatory activity if the microelements and mesoelements which are necessary for these processes are present, which upon penetration into the plant form biologically active complexes with the enzyme protein so that the hormone and the enzyme level in the plant can be brought into balance, and the depression that accompanies the use of plant growth regulators can be eliminated by proper use.
Plantevekstregulatorene ifølge oppfinnelsen anvendes generelt i form av tankblandinger, fremstilt fra emulgerbare konsentrater, fuktbare pulvere og mikroelementer chelatert eventuelt ved tilsetning av urea og. ammoniumsalter. The plant growth regulators according to the invention are generally used in the form of tank mixtures, prepared from emulsifiable concentrates, wettable powders and microelements chelated if necessary by the addition of urea and. ammonium salts.
Spor- og mesoelementene anvendes generelt i form av chelater slik som magnesiumchelat til en konsentrasjon på 40 g/l, manganchelat til en konsentrasjon på 30 g/l, kopper-chelat til en konsentrasjon på 40 g/l, sinkchelat til en konsentrasjon på 30 g/l, bor i form av borsyre til en konsentrasjon på 7 g/l, svovel (i form av et sulfat) i ammoniumsulfat-løsning i en konsentrasjon på 300 g/l, og molybden 1 ammonium-molybdenatløsning i en konsentrasjon på 3 g/l. Kompleksene av sporelementene tilsettes vanligvis i form av en tankbland-ing til de andre aktive bestanddeler. The trace and meso elements are generally used in the form of chelates such as magnesium chelate to a concentration of 40 g/l, manganese chelate to a concentration of 30 g/l, copper chelate to a concentration of 40 g/l, zinc chelate to a concentration of 30 g/l, boron in the form of boric acid at a concentration of 7 g/l, sulfur (in the form of a sulfate) in ammonium sulfate solution at a concentration of 300 g/l, and molybdenum 1 ammonium molybdenate solution at a concentration of 3 g/l. The complexes of the trace elements are usually added in the form of a tank mixture to the other active ingredients.
Utførelsesformer av oppfinnelsen Embodiments of the invention
Emulgerbare konsentrater, fuktbare pulverblandinger og forstøvningsmidler kan fremstilles som beskrevet i de etter-følgende eksempler: Emulsifiable concentrates, wettable powder mixtures and nebulizers can be prepared as described in the following examples:
Eksempel 1 Example 1
En blanding av 25 g 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran og 25 g 2-klorethylfosfonsyre ble oppløst i 30 g xylen. 10 g av et addukt fremstilt fra 8 til 10 mol ethylenoxyd og 1 mol oljesyre-N-monoethanolamid, 5 g calciumsalt av dodecylbenzensulfonsyre, 5 g av et addukt fremstilt fra 40 mol ethylenoxyd og 1 mol kastorolje ble tilsatt. Hvis denne løsning fortynnes med 1150 g vann og den aktive bestanddel dispergeres i det vandige medium, erholdes et vandig preparat inneholdende 2 vekt% aktive bestanddeler. Til dette preparat kan tilsettes chelater av spor- og mesoelementene og vannløselige salter derav, og, om ønsket, kan urea tilsettes . A mixture of 25 g of 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran and 25 g of 2-chloroethylphosphonic acid was dissolved in 30 g of xylene. 10 g of an adduct prepared from 8 to 10 mol of ethylene oxide and 1 mol of oleic acid-N-monoethanolamide, 5 g of calcium salt of dodecylbenzenesulfonic acid, 5 g of an adduct prepared from 40 mol of ethylene oxide and 1 mol of castor oil were added. If this solution is diluted with 1150 g of water and the active ingredient is dispersed in the aqueous medium, an aqueous preparation containing 2% by weight of active ingredients is obtained. Chelates of the trace and meso elements and water-soluble salts thereof can be added to this preparation, and, if desired, urea can be added.
Ved fremstilling av emulgerbare konsentrater kan xylen erstattes med en 2:1 blanding av cyclohexanon og isobutanol som løsningsmiddel, og som overflateaktivt middel kan ethoxylert oljesyre-N-monoethanolamid erstattes med et addukt fremstilt fra 7 mol ethylenoxyd og 1 mol isooctylfenol. When producing emulsifiable concentrates, xylene can be replaced with a 2:1 mixture of cyclohexanone and isobutanol as solvent, and as surface-active agent ethoxylated oleic acid-N-monoethanolamide can be replaced with an adduct made from 7 mol of ethylene oxide and 1 mol of isooctylphenol.
Xylen kan erstattes av en blanding av xylen og en mineraloljefraksjon som koker ved 210-280°C. Ethoxylert eller oxypropylert kastorolje kan blandes med calciumsalt av dodecylbenzensulfonsyre som overflateaktivt middel. Xylene can be replaced by a mixture of xylene and a mineral oil fraction that boils at 210-280°C. Ethoxylated or oxypropylated castor oil can be mixed with the calcium salt of dodecylbenzenesulfonic acid as a surfactant.
Som ikke-ioniske overflateaktive midler kan anvendes addukter fremstilt fra 40 mol ethylenoxyd og 1 mol laurinsyre, addukter fremstilt fra 1 mol oljealkohol og 30 mol ethylenoxyd eller 10 mol propylenoxyd og addukter fremstilt fra As non-ionic surfactants, adducts prepared from 40 mol ethylene oxide and 1 mol lauric acid, adducts prepared from 1 mol petroleum alcohol and 30 mol ethylene oxide or 10 mol propylene oxide and adducts prepared from
8 mol ethylenoxyd og 1 mol nonylfenol. 8 moles of ethylene oxide and 1 mole of nonylphenol.
Eksempel 2 Example 2
For å fremstille et forstøvningsmiddel ble 1,5 g 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran og 1,5 g 2-klorethylfosfonsyre homogenisert med 97 g pulverisert kaolin, hvoretter blandingen ble malt. Det erholdte forstøvnings-middel inneholdt 1,5 vekt% biologisk aktive midler. To prepare a nebulizing agent, 1.5 g of 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran and 1.5 g of 2-chloroethylphosphonic acid were homogenized with 97 g of powdered kaolin, after which the mixture was ground. The nebulizer obtained contained 1.5% by weight of biologically active agents.
Eksempel 3 Example 3
For fremstilling av et fuktbart pulverpreparat inneholdende 25 vekt% biologisk aktiv bestanddel, ble 25 g 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran og 25 g 2-klorethylfosfonsyre blandet med 3 g natriumsalt av diisobutylnafthalen-sulfonsyre, 5 g natriumsalt av ligninsulfonsyre og 42 g kaolin. For the production of a wettable powder preparation containing 25% by weight of biologically active ingredient, 25 g of 2,2-dimethyl-2,3-dihydro-7-hydroxy-benzofuran and 25 g of 2-chloroethylphosphonic acid were mixed with 3 g of the sodium salt of diisobutylnaphthalene sulfonic acid, 5 g sodium salt of lignin sulphonic acid and 42 g kaolin.
Som overflateaktive midler kan anvendes et addukt av As surfactants, an adduct of
40 mol ethylenoxyd og 1 mol nonylfenol, et kondensat med molarforhold på 2:1 av natriumsaltet av nafthalensulfonsyre og formaldehyd, et addukt av 20 mol ethylenoxyd og 20 mol propylenoxyd med 1 mol nonylfenol, calciumsalt av ligninsulfonsyre etc. Kaolin kan erstattes av siliciumsyre eller syntetisk siliciumsyre. 40 mol ethylene oxide and 1 mol nonylphenol, a condensate with a molar ratio of 2:1 of the sodium salt of naphthalene sulfonic acid and formaldehyde, an adduct of 20 mol ethylene oxide and 20 mol propylene oxide with 1 mol nonylphenol, calcium salt of lignin sulfonic acid, etc. Kaolin can be replaced by silicic acid or synthetic silicic acid.
Den biologiske aktivitet av preparatene ifølge oppfinnelsen ble testet på solsikke og maisplanter. Testene ble ut-ført i veksthus og på marken. Ved veksthustestene ble 6 kg sand av glassfremstillingskvalitet fylt i Mitscherlich dyrk-ningsskåler, idet den totale vannkapasitet på forhånd var blitt bestemt. Sanden ble kontinuerlig overhelt med Knopp næringsløsning hver uke i en mengde på 100 cm pr. dyrknings-skål. Vanntapet av sanden ble kompensert til 70% vannkapasitet. Testen ble gjentatt 6 ganger, og i hver skål ble det sådd 6 korn, og planteantallet i hver skål var 4 etter spiring. Den behandlede solsikke var av type Marianne, og maisen var av type SzET-255. Solsikke ble behandlet i et trinn med 1 par av virkelige blader, og maisen ble behandlet i et stadiummed 2 par av virkelige blader, med et preparat inneholdende benzofuranderivat eller 2-klorethylfosfonsyre, hvoretter høyden ble bestemt i et stadium med 3 par av virkelige blader for solsikke og ved et stadium med 6 par av blader for mais. Felttester ble utført på de samme planter som i vekst-huset på kalkbelagt "cernozjom"-jord. Plantene ble sådd i midten av april med en rekkeavstand for mais og solsikke på 50-50 cm, en planteavstand på 20 cm og en størrelse på jord-stykket på 2 x 15 m, og testene ble gjentatt 4 ganger. Maisplanter ble behandlet i 90-100 cm alder, og solsikke ble behandlet i et stadium ved 6 par av blader. Benzofuranderivatene ble anvendt i form av et emulgerbart konsentrat med 25 vekt% aktiv bestanddel, og 2-klorethylfosfonsyren ble anvendt i et emulgerbart konsentrat inneholdende 40 vekt% aktiv bestanddel, og mikroelementer ble anvendt i de ovenfor angitte preparat-former. I variant A ble det anvendt doser på 2 l/ha og 0,5 l/ha bortsett fra de ubehandlede kontrollplanter. The biological activity of the preparations according to the invention was tested on sunflower and maize plants. The tests were carried out in greenhouses and in the field. In the greenhouse tests, 6 kg of sand of glass-making quality were filled in Mitscherlich cultivation bowls, the total water capacity having been determined in advance. The sand was continuously overwashed with Knopp nutrient solution every week in an amount of 100 cm per cultivation bowl. The water loss from the sand was compensated to 70% water capacity. The test was repeated 6 times, and in each dish 6 grains were sown, and the number of plants in each dish was 4 after germination. The treated sunflower was of type Marianne, and the maize was of type SzET-255. Sunflower was treated at a stage of 1 pair of true leaves, and maize was treated at a stage of 2 pairs of true leaves, with a preparation containing benzofuran derivative or 2-chloroethylphosphonic acid, after which the height was determined at a stage of 3 pairs of true leaves for sunflower and at a stage with 6 pairs of leaves for maize. Field tests were carried out on the same plants as in the growth house on lime-coated "cernozjom" soil. The plants were sown in mid-April with a row spacing for maize and sunflower of 50-50 cm, a plant spacing of 20 cm and a plot size of 2 x 15 m, and the tests were repeated 4 times. Maize plants were treated at 90-100 cm age, and sunflowers were treated at a stage at 6 pairs of leaves. The benzofuran derivatives were used in the form of an emulsifiable concentrate with 25% by weight of active ingredient, and the 2-chloroethylphosphonic acid was used in an emulsifiable concentrate containing 40% by weight of active ingredient, and microelements were used in the above-mentioned preparation forms. In variant A, doses of 2 l/ha and 0.5 l/ha were used, except for the untreated control plants.
Forandringen i høyden på plantene ble bestemt på den 10. dag etter behandlingene på basis av 50 gjentatte test-resultater. Det var ikke noen forskjell i antall planter på de behandlede og ubehandlede jordstykker, idet planteantallet for solsikke var 78.000 planter/ha, og planteantallet for mais var 92.000 planter/ha. I variant B ble solsikke behandlet den 3. juni ved et stadium på 3-4 par av blader, og høyden ble målt 1. august på basis av dataene for 50 planter for hver gjentagelse. 1000 achenevekt ble bestemt for hver gjentagelse på basis av 40 x 100 achene, og vekten pr. plate ble bestemt på basis av 15 plater for hver gjentagelse. Mais ble behandlet etter variant B den 10. juli i et stadium på 50-60 cm, og høyden av plantene ble bestemt 2. september ved måling av høyden av 50 planter for hver gjentagelse. 1000 kornvekt og kornvekten pr. maiskolbe "corn-ear" kan bestemmes ved høsting på samme måte som for solsikke. The change in the height of the plants was determined on the 10th day after the treatments on the basis of 50 repeated test results. There was no difference in the number of plants on the treated and untreated plots, as the number of plants for sunflower was 78,000 plants/ha, and the number of plants for maize was 92,000 plants/ha. In variant B, sunflower was treated on June 3 at a stage of 3-4 pairs of leaves, and height was measured on August 1 based on the data of 50 plants for each replicate. 1000 achene weight was determined for each repetition on the basis of 40 x 100 achenes, and the weight per plate was determined on the basis of 15 plates for each replicate. Maize was treated according to variant B on 10 July at a stage of 50-60 cm, and the height of the plants was determined on 2 September by measuring the height of 50 plants for each replicate. 1000 grain weight and the grain weight per corn-ear can be determined at harvest in the same way as for sunflower.
I tabellen angis 2-klorethylfosfonsyre som A og furan-derivatet som B. I tabell 1 er angitt veksthusresultåtene, hvilke tester ble utført for å vise effekten av de aktive bestanddeler A og B på høyden av mais og solsikke. In the table, 2-chloroethylphosphonic acid is given as A and the furan derivative as B. Table 1 shows the greenhouse results, which tests were carried out to show the effect of the active ingredients A and B on the height of maize and sunflower.
I veksthustestene angir 10% konsentrasjon av løsningen når det gjelder benzofuraner en dose på 5 l/ha når det gjelder et emulgerbart konsentrat på 25 vekt%, og 10% 2-klorethyl-fosfonsyreløsning angir 5 l/ha for et 40 vekt% emulgerbart konsentrat. I fortynnede løsninger er mengden av aktiv bestanddel avtagende som angitt. In the greenhouse tests, 10% concentration of the solution in the case of benzofurans indicates a dose of 5 l/ha in the case of an emulsifiable concentrate of 25% by weight, and 10% 2-chloroethyl-phosphonic acid solution indicates 5 l/ha for a 40% by weight emulsifiable concentrate . In dilute solutions, the amount of active ingredient is decreasing as indicated.
Tabell 1 viser at både A og B er aktive som plantevekstregulerende midler hvor 10%-løsningen dreper plantene, men avtagende konsentrasjon av begge aktive bestandeler til en bestemt verdi øker høyden av begge planter. Løsninger med lavere konsentrasjoner enn 1,4% har hovedsakelig ingen effekt på høyden av plantene. Table 1 shows that both A and B are active as plant growth regulators where the 10% solution kills the plants, but decreasing concentration of both active ingredients to a certain value increases the height of both plants. Solutions with lower concentrations than 1.4% have mainly no effect on the height of the plants.
Felttestresultater er vist i tabell 2 for å demonstrere effekten på høyden av solsikke og mais. Field test results are shown in Table 2 to demonstrate the effect on the height of sunflower and maize.
Dataene i tabell 2 viser at som et resultat av anvendelse av de to aktive bestanddeler sammen øket den høyde-influerende aktivitet. The data in Table 2 show that as a result of using the two active ingredients together, the height-influencing activity increased.
I tabell 3 er felttestresultater vist som en funksjon av forandringen av kornvekt av maiskolber, av 1000 kornvekten og høyden av maisplantene. In Table 3, field test results are shown as a function of the change in corn cob grain weight, the 1000 grain weight and the height of the corn plants.
Effekten på plantehøyden kan sees på basis av dataene angitt i tabell 3. Resultatet når det gjelder 1000 kornvekt, er spesielt viktig, idet som et resultat av dette kan en depresjon unngåes ved anvendelse av et preparat i forbindelse med mikroelementer. Kornvekten pr. maiskolbe øker bare hvis de aktive bestanddeler ifølge oppfinnelsen kombineres med hverandre ved den gitte dose. The effect on plant height can be seen on the basis of the data given in Table 3. The result in terms of 1000 grain weight is particularly important, as as a result depression can be avoided by using a preparation in connection with microelements. The grain weight per corn cob only increases if the active ingredients according to the invention are combined with each other at the given dose.
I tabell 4 er det vist effekten på plantehøyden av solsikke og fruktkomponentene i felttester. Table 4 shows the effect on the plant height of sunflower and the fruit components in field tests.
Tabell 4 viser at graden av høydenedsettelsen er mindre Table 4 shows that the degree of height reduction is smaller
når de aktive bestanddeler kombineres ifølge oppfinnelsen. Økningen i 1000 achenevekt og achenevekten pr. plate som et resultat av behandlingen ifølge oppfinnelsen, er signifikant. when the active ingredients are combined according to the invention. The increase in 1000 achene weight and the achene weight per plate as a result of the treatment according to the invention is significant.
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HU79783A HU187053B (en) | 1983-03-08 | 1983-03-08 | Preparation consists of several agent controlling the growth of tillage plants and method for treating tillage plants |
PCT/HU1984/000013 WO1984003419A1 (en) | 1983-03-08 | 1984-03-08 | Process and composition for plant growth regulation |
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