NZ755841B2 - Agrochemical combination - Google Patents

Abstract

The present invention relates to an agrochemical combination of (i) linolenic acid, a linolenic acid derivative, a linolenic acid breakdown component, or an ester thereof; and (ii) inositol, an inositol derivative or an inositol breakdown component. The invention also relates to agrochemical compositions comprising the same and the use such a combination for improving plant physiology. tions comprising the same and the use such a combination for improving plant physiology.

Description

(12) Granted patent specificaon (19) NZ (11) 755841 (13) B2 (47) Publicaon date: 2021.12.24 (54) AGROCHEMICAL COMBINATION (51) Internaonal Patent Classificaon(s): A01N 31/06 A01N 37/06 A01P 21/00 (22) Filing date: (73) Owner(s): 2018.03.12 CROP INTELLECT LTD (23) Complete specificaon filing date: (74) Contact: 2018.03.12 DAVIES COLLISON CAVE PTY LTD (30) Internaonal Priority Data: (72) Inventor(s): GB 1703877.9 2017.03.10 PAPADOPOULOS, Apostolos (86) aonal Applicaon No.: (87) Internaonal Publicaon number: 8/162934 (57) Abstract: The present invenon relates to an agrochemical combinaon of (i) linolenic acid, a nic acid derivave, a linolenic acid breakdown component, or an ester thereof; and (ii) inositol, an inositol derivave or an inositol breakdown component. The invenon also s to agrochemical ions comprising the same and the use such a combinaon for improving plant physiology.

NZ 755841 B2 Agrochemical Combination The present invention relates to agrochemical combinations of ingredients suitable for use in agrochemical compositions and the use of the same to improve plant physiology.

Background to the Invention Improving yield and quality in a sustainable manner has always been the challenge in crop farming. Crop nutrition has been key to improving crop productivity once crop protection is taken care of and it is highly supported by nutrition. Major nutrients such as nitrogen are core to sing plant growth but increasing such nts can bring about negative effects. Fast cell division and ion cause a weak plant which is more vulnerable to biotic and abiotic stresses. This results in poor plant performance and more need for inputs to reduce such negative effects. Complex interactions exist between elements which although are to an extent understood it is not easy to manage in a field situation. Typically, one element will block another or its availability will cause toxicity to the plant.

Plant characteristics associated with yield and quality are weight, size, uniformity, shelf-life, colour, sugar etc. These are highly affected by crop nutrition. Many 2O researchers have focused on life as a major requirement in the ry particularly of able produce such as leafy .

Over the years, researchers have discovered ways to improve the application of fertilisers to plants, e.g. using more available forms, improved uptake by sing the residual time in the soil or on plant surface, increasing the penetration of wax layers and formation of complexes to retain availability when soil applied. Furthermore, phytochemicals such as auxins, cytokinins and ary metabolites have been used to control plant growth or trigger responses of the immune system to increase resilience to biotic stresses. Although benefits have been demonstrated using these, synergies are very rare. Combining ients usually results in no effect or no extra benefits most likely due to the action of the plant.

The most desirable quality teristic is the reduction of water loss which is a measure that reflects improvements in cell structural stability, cell wall strength, improved cell division and dry matter. Other characteristics include increase in fresh weight and sugars, reduced rotting and improved colour.

Improving such teristics of the plant physiology is the object of the ion through an agrochemical combination.

Description of the Invention The present invention relates to an agrochemical combination of ingredients for use in an agrochemical composition, and the use of such a combination to improve plant 1O physiology, to improve crop yields, and/or to improve crop quality characteristics.

In a first aspect, the invention provides a combination of: (i) linolenic acid, a linolenic acid derivative, a nic acid breakdown component, or an ester thereof; and (ii) inositol, an ol derivative or an inositol breakdown component.

Component (i) is a linolenic acid, a linolenic acid derivative, a linolenic acid breakdown component, or an ester thereof. 2O Linolenic acid is a type of fatty acid. It can refer to either of two catrienoic acids, i.e. with an 18 carbon chain and three double bonds which are found in the cis configuration, or a mixture of the two. The two forms of nic acid are o—linolenic acid and or y-linolenic acid. o—linolenic acid is ented by the chemical structure: HOJJ\/\/\/\/\/\7\/\/\\ \ y-linolenic acid is represented by the chemical structure: HOJJ\/\/\7\/\/\/\/\/\\ / Component (i) may also be a linolenic acid derivative or ester thereof.

Linolenic acid and its derivatives can be represented by Formula 1.

In one embodiment, component (i) is a compound of Formula 1: a 1: RX 0 ‘~ CH2R17 wherein: R116 are independently selected from H, F, Br, Cl, I, cyano, N02, C1-C3 alkyl, CH2OH, CH20CH3, C1-C3 alkoxy, C1-C3 haloalkyl, -NR18R19, -C(=O)R19, CH2COOR19, or OR19; R17 is independently selected from H, F, Br, Cl, I, cyano, N02, and -NH2; R18 and R19 are independently selected from H and C1-C3 alkyl; Rx is independently selected from H, methyl, ethyl, propyl, n-butyl, tyl, sec-butyl, t-butyl, n-pentyl, iso-pentyl, neo-pentyl, yl, 2-methylbutyl, benzyl, , hexyl, 3-methylpentyl, octyl, 2-ethylhexyl, nonyl, decyl, undecyl, dodecyl, allyl, propargyl, 2- -2—propenyl, cishexenyl, neryl, linalyl, citronellyl, 2-methyl-2—butenyl, trans- 2O 3-hexenyl, 3-methyl-2—butenyl, B-phenylethyl, a—phenylethyl and furfuryl; n is 0-2; and each— is a single or double bond, provided that at least two; are double bonds.

In one embodiment, at least 12, at least 13, at least 14, at least 15, or at least 16 of R117 are H.

In one embodiment, R17 is H and at least 14 or at least 15 of R1-16 are H.

In one embodiment, all of R1.17 are H. For example, R1_17 and Rx may all be H.

In one embodiment, two; are double bonds.

In one embodiment, Rx is H, methyl, ethyl, propyl, n-butyl, iso-butyl, sec-butyl, t-butyl, n-pentyl, iso-pentyl, neo-pentyl, t-pentyl, ylbutyl, or phenyl.

Component (i) may also be a linolenic acid breakdown component or derivatives thereof. Linolenic acid breakdown components and derivatives thereof may be represented by ae 2 to 5: Formula 2: 0 R2 R4 R5 R8 R10 OOH R14 R16 RX 0 CH2R17 Formula 3: Formula 5 wherein: R116 are independently ed from H, F, Br, Cl, 1, cyano, N02, C1-C3 alkyl, CH2OH, CH20CH3, C1-C3 alkoxy, C1-C3 haloalkyl, -NR18R19, -C(=O)R19, CH2COOR19, or OR19; R17 is ndently selected from H, F, Br, Cl, 1, cyano, N02, and -NH2; R18 and R19 are independently selected from H and C1-C3 alkyl; Rx is selected from H, methyl, ethyl, propyl, n-butyl, iso-butyl, sec-butyl, t-butyl, n- pentyl, iso-pentyl, neo-pentyl, t-pentyl, 2-methylbutyl, benzyl, phenyl, hexyl, 3- methylpentyl, octyl, lhexyl, nonyl, decyl, undecyl, dodecyl, allyl, propargyl, 2- methyl-2—propenyl, cishexenyl, neryl, linalyl, citronellyl, 2-methyl-2—butenyl, trans- 3-hexenyl, 3-methyl-2—butenyl, B-phenylethyl, a—phenylethyl and furfuryl; n n is 0-2; and wherein ; may be a single or double bond.

In one embodiment, component (i) is a compound of a 6 or formula 7: Formula 6 RX 0 CH2R17 Formula 7 RX 0 CH2R17 wherein R1-17 and RX are as defined previously.

With respect to all of Formulae 1 to 7, R1'16 may be independently selected from H, F, Br, Cl, I, cyano, N02, OH, C1-C3 alkyl, CH2OH, or CH2OCH3. For example, R1-16 may be independently selected from H, F, Br, Cl, I, or OH.

With t to all of Formulae 1 to 7, R17 may be H, F, Br, Cl, I, or NH2. For example 1O R17 is H.

In some embodiments, R116 are independently selected from H, F, Br, Cl, I, cyano, N02, C1-C3 alkyl, -NR18R19 or OR19; R18 and R19 are , C1-C3 alkoxy, C1-C3 haloalkyl, independently selected from H and C1-C3 alkyl; andR17 is selected from H, F, Br, Cl, I, cyano, N02, C1-C3 alkyl, C1-C3 alkoxy, C1-C3 haloalkyl, -NR18R19 or OR19.

In some embodiments, R116 are ndently selected from H, F, Br, Cl, I, cyano, N02, -NR18R19 or OR19; R18 and R19 are independently selected from H and C1-C3 alkyl; and R17 2O is selected from H, F, Br, Cl, I, cyano, N02, -NR18R19 or OR19.

In some ments, R116 are independently selected from H, F, Br, C1 or I; and R17 is selected from H, F, Br, C1 or I.

In some embodiments, R1'16 are H; andR17 is H.

In some embodiments, RX is selected from H, methyl, ethyl, propyl, l, iso-butyl, sec-butyl, t-butyl, n-pentyl, iso-pentyl, neo-pentyl, t-pentyl, 2-methylbutyl, benzyl, phenyl, hexyl or 3-methylpentyl.

In some embodiments, RX is selected from H, , ethyl, propyl, n-butyl, iso-butyl, sec-butyl, t-butyl, n-pentyl, iso-pentyl, neo-pentyl, yl or 2-methylbutyl.

In some embodiments, RX is selected from H, methyl, ethyl, propyl, n-butyl, iso-butyl, sec-butyl or t-butyl.

In some embodiments, RX is selected from H, , ethyl or propyl.

In one embodiment, RX is selected from H, methyl or ethyl.

In one embodiment, RX is H or methyl. 1O In one embodiment, R1'16 are independently selected from H, F, Br, C1 or I; R17 is selected from H, F, Br, C1 or I; and at least 15 of R1-17 are H.

In one embodiment, component (i) is o—linolenic acid: \/\/\/\/\7\/\/\\ \ . or v-linolenic acid: HOW\ / In one embodiment, component (i) is linolenic acid or an ester thereof such as a C1_4 2O alkyl ester thereof, e.g. an ethyl ester thereof.

Component (i) may be applied to a plant dissolved in a solvent. A suitable solvent is water.

The concentration of component (i) may be from about 0.1 mg/litre (mg/l) to about 500 mg/l, from about 0.3 mg/l to about 300 mg/l, from about 0.4 mg/l to about 125 mg/l, from about 0.5 mg/l to about 100 mg/l, from about 0.6 mg/l to about 75 mg/l, from about 0.7 mg/l to about 50 mg/l, or from about 0.8 mg/l to about 35 mg/l. For e, the concentration of component (i) may be from about 1 mg/l to about 33 mg/l . For example, the concentration of component (i) may be about 1 mg/1, about 4.5 mg/l, about 4.9 mg/l, about 30 mg/l, or about 33 mg/l. atively, the concentration of component (i) may be from about 10 mg/litre (mg/l) to about 500 mg/l, from about 50 to about 300 mg/l, from about 75 to about 125 mg/l, or from about 90 to about 110 mg/l. For example, the concentration of component (i) may be about 100 mg/l.

When d to the plant, component (i) may be applied in amount from about 0.01 g/ha to about 10.0 g/ha, from about 0.02 g/ha to about 9.0 g/ha, from about 0.03 g/ha to about 8.0 g/ha, from about 0.05 g/ha to about 6.0 g/ha, or from about 0.1 g/ha to about 4.5 g/ha.

Component (ii) is inositol, an inositol derivative or an inositol breakdown component.

Innositol is also known as exane-1,2,3,4,5,6-hexol and has a chemical ure: HO OH HO OH OH Inositol includes but is not limited to the following isomers: myo-, scyllo-, muco-, chiro-, neo-, allo-, epi, and ositol. Chiro-inositol may be one of two forms: D- chiro-inositol or L-chiro-inositol.

Component (ii) may also be an inositol derivative or an inositol breakdown component.

Inositol derivatives and inositol breakdown components may be represented by Formula 8. In one embodiment, component (ii) is a compound represented by formula Formula 8 Q50 OQ1 Q40 OQz Q may be selected from OQ6 or H, halogen, cyano, N02, C1-C3 alkyl, C1-C3 haloalkyl, and amino; and Q1 — Q6 are independently selected from H, -P03H2, , C1-C3 alkyl, formula 9: Formula 9 two or more of Q1 and Q2, Q3 and Q4, Q5 and Q6 may together form a group represented by formula 10: and Formula 10 HO O ‘(F‘r‘ . 2O wherein when one or more of Q1-Q6 is C1-C3 alkyl, the alkyl group(s) may also join to the carbon atom of the inositol ring structure thereby forming a cyclic ether group.

In one embodiment, Q is OQ6, wherein Q6 is as defined herein.

In one embodiment, Q3, Q4, and Q5 are H, and Q, Q, and Q2 are as defined herein.

In one embodiment, Q2, Q3, Q4, and Q5 are H, and Q, and Q are as defined herein.

In one embodiment, Ql-Q5 are H, and Q is as defined herein.

In one embodiment, Ql-Q5 are H, and Q is OQ6 or H, halogen, cyano, N02, C1-C3 alkyl, C1-C3 haloalkyl, and amino. For example, Q may be OQ6. Alternatively, Q may be H, halogen or amino.

As used herein, the term inositol is intended to mean any stereoisomer of inositol. For 1O example, myo-inositol, D-chiro-inositol, L-chiro-inositol, muco- inositol, scyllo- inositol, neo-inositol, allo-inositol, epi-inositol, cis-inositol or mixtures thereof.

In one embodiment, ent (ii) is selected from ol, an inositol phosphate, an inositol sulphate, an inositol nicotinate/niacinate, or a cyclic ether inositol.

In some embodiments, component (ii) is selected from inositol, an inositol ate or an ol te.

In one embodiment, component (ii) is inositol. For example, component (ii) may be selected from myo-inositol, D-chiro-inositol, L-chiro-inositol, muco- inositol, scyllo- 2O inositol, neo-inositol, allo-inositol, epi-inositol and cis-inositol.

In some embodiments, component (ii) is selected from myo-inositol and D-chiro- inositol.

Component (ii) may be applied to a plant dissolved in a solvent. A le solvent is water.

The concentration of component (ii) may be from about 10 mg/litre (mg/l) to about 500 mg/l, from about 50 to about 300 mg/l, from about 100 mg/l to about 150 mg/l.

For example, the concentration of component (ii) may be about 100 mg/l or 150 mg/l.

When applied to the plant, component (ii) may be d in amount from about 1 to about 80g/hectare (ha), from about 5 to about 50 g/ha, from about 10 g/ha to about 20 g/ha, or from about 5 to about 15 g/ha. For example, component (ii) may be applied in an amount of about 10 g/ha or about 15 g/ha.

In one embodiment, the combination of (i) and (ii) further ses a source of calcium.

The source of calcium may be selected from but not limited to the group ting of calcium ammonium e, calcium nitrate, calcium hydroxide, calcium cyanamide, calcium acetate, calcium acetylsalicylate, calcium borate, calcium borogluconate, calcium carbonate, m chloride, calcium citrate, calcium ferrous e, calcium glycerophosphate, calcium lactate, calcium oxide, calcium pantothenate, calcium propionate, calcium saccharate, calcium sulphate, calcium phosphate and calcium tartrate.

The source of calcium may be applied to a plant dissolved in a solvent. A suitable solvent is water.

The concentration of the calcium source may be from about 0.025 wt% to about 20 wt%, from about 0.04 wt% to about 1 wt%, from about 0.05 wt% to about 0.25 wt%, or 2O from about 0.1 wt% to about 0.2 wt% When applied to the plant, the source of calcium may be d in amount from about 1g to about 200kg/hectare (ha), from about 200g to about 1kg/ha, from about 400 to about 800g/ha, or about 600g/ha.

In some embodiments, the combination of (i) and (ii) r comprises an active ingredient ed from the group consisting of , systemin, oligouronides, chitosan, carbanilide, calreticulin, flagellin and B-glucan-containing elicitors.

The combinations/compositions of the invention may further comprise other conventional agrochemical ingredients such agrochemical nts (such as macro and micro nutrients), and agro-chemically acceptable excipients. Suitable macro nutrients include but are not limited to sources of nitrogen, phosphorous, potassium, and sulphur. Suitable micro nutrients include but are not limited to sources of magnesium and iron. Others include boron, cobalt, chromium, , fluoride, iodine, ese, molybdenum, selenium, zinc etc.

Accordingly, the combinations/compositions of the invention may r comprise one or more agrochemically able excipients. es of such components include water, amino acids, vitamins, seaweed and other plants extracts, weak acids, plant oils, essential oils, metabolic stimulating agents, emulsifiers, thickeners, colouring agents, suspension agents, dispersion , carriers or excipients and wetting agents.

As used herein, the expression "weak acid" refers to a weak organic acid such as acetic acid, citric acid, humic acid, fulvic acid or propanoic acid; preferably the weak acid is citric acid.

In a further , the invention provides an agrochemical composition comprising a combination of (i) and (ii) as defined herein, and optionally one or more agrochemical ents.

In this case, if required an emulsifier may be employed in the formulation. An 2O emulsifier may be employed to improve the dissolvability of component (i) in the formulation. le emulsifiers for use in the compositions of the present invention include any known agriculturally acceptable emulsifier. In particular, the emulsifier may comprise a surfactant such as: fatty alcohol polyethylene glykol ether, typically ryl sulphonates, ethoxylated alcohols, polyalkoxylated butyl ethers, calcium alkyl e sulphonates, polyalkylene glycol ethers and butyl polyalkylene oxide block copolymers as are known in the art. Nonyl phenol emulsifiers such as Triton N57(TM) are particular examples of emulsifiers, which may be used in the compositions of the invention, as are polyoxyethylene sorbitan esters such as polyoxyethylene sorbitan monolaurate (sold by ICI under the trade name "Tween(TM)"). In some instances, natural organic fiers may be preferred, particularly for organic g applications. Coconut oils such as coconut diethanolamide is an example of such an compound. Palm oil products such as lauryl stearate may also be used.

Suitable emulsifiers include commercially available sorbitol products such as Tween® 2o, 40, and 60.

The combination/compositions may further comprise a growth regulator.

In one embodiment, the growth regulator, or plant growth regulator, is chosen from the group of plant hormones, or chemical compounds with analogous activity. Suitable examples of such compounds are auxins, cytokines, lins, ne precursors (like ethephon), or abscisic acid. In another embodiment, the growth regulator, or plant growth regulator, is a growth inhibitor, like for example chlormequat or mepiquat de, certain triazole or triazole like compounds, or prohexadione, daminozide, trinexapac ethyl type compounds, or ethylene tors.

Suitable auxins include natural or synthetic chemicals that behave like the naturally occurring auxins produced by plant enzyme systems, and the term "auxin" and "auxins" as used herein refers to such compounds in natural and synthetic form. Indoleacetic acids, indolbutyric acid (3-BA); naphthaleneacetamide; 2 methyl- 1- naphthaleneacetic acid and 2—methyl-l-naphthylacetamide have hormonal activity and may be substituted for the naturally ing auxins. It may be useful to have metal ions present with the auxins, such as for example zinc or manganese. In preferred embodiments, the auxin employed is selected from the group consisting of 3- indolebutyric acid, 3-indoleacetic acid, 1-naphthylacetic acid, lebutyric acid, and 2O salts and esters thereof. Preferably, the metal ions required for a good activity are supplied together with the auxin.

Suitable cytokinins are a class of plant regulation substances (phytohormones) that promote cell division, or cytokinesis, in plant roots and shoots. There are two types of cytokinins: adenine-type cytokinins represented by kinetin, zeatin, and 6- benzylaminopurine (also referred to as BAP, 6-BAP, or 6-benzyladenine), and urea-type cytokinins like diphenylurea (DPU), diphenylthiourea (DPTU) and thidiazuron (TDZ). In red ments the cytokinin is selected from the group consisting of kinetin etic or derived from seaweed), 6-BAP, l-(2—chloropyridin yl)phenylurea (CPPU), and TDZ.

The formulations according to the invention can be d either as such or after prior on with water, or other diluents, i.e. for example, as emulsions, suspensions, solutions, or aerosols.

In a particular preferred embodiment, the formulation is in the form of a concentrate which is diluted with solvent, e.g. water, prior to the actual application. In another embodiment, the formulation is in the form of a diluted formulation containing additional solvent, e.g. water, but retaining the same ratio/proportion of active ingredients found in the trate.

The weight ratio of component (i) to component (ii) may generally be from about 2 : 1 to about 1 : 1200, from about 1 : 1 to about 1 : 160, from about 1 : 2 to about 1 : 140, or from about 1 : 3 to about 1 : 120.

The weight ratio of component (i) to the calcium source may generally be from about 1 : 4,000 to about 1 : 550,000, from about 1 : 5,000 to about 1: 400,000, from about 1 : 6,000 to about 1 : 300,000, or from about 1 : 6,500 to about 1 : 240,000.

The weight ratio of component (ii) to the calcium source may generally be from about 1 2O : 500 to about 1 : 4,000, or from about 1 : 1,000 to about 1 : 3,000, or from about 1 : 1,500 to about 1 : 2,500. For example, the weight ratio of component (ii) to the calcium source may be about 1 : 2,000.

In a further , the ion provides the use of a combination of the present invention or an agrochemical composition of the present invention for improving plant physiology. The combination of components (i) and (ii) of the present invention has been found to have surprising efficacy for improving plant physiology. In particular, the present invention has been shown to be useful in improving plant physiology in vegetable, fruit and flowering plants. For example, the t ion has been shown to be useful in improving plant physiology in lettuce, tomato, strawberry and potato plants.

In a further , the invention provides the use of a combination of the present invention or an agrochemical composition of the present invention for improving crop yield and/or crop characteristics. The combination of components (i) and (ii) of the t ion has been found to have surprising efficacy for improving crop yield and/or crop characteristics. In particular, the present invention has been shown to be useful in improving crop teristics in vegetable, fruit and flowering plants. For e, the present invention has been shown to be useful in improving crop characteristics in lettuce, tomato, strawberry and potato plants.

In a further aspect, the invention provides the use of a combination of the present invention or an agrochemical composition of the present invention for reducing water 1O loss in crops. The ation of components (i) and (ii) of the present invention has been found to have surprising efficacy for reducing water loss in crops. In particular, the present invention has been shown to be useful in reducing water loss in vegetable, fruit and flowering plants. For example, the present invention has been shown to be useful in ng water loss in crops harvested from leaf vegetable plants and fruit plants, e.g. from reducing water loss in lettuce and reducing water loss in tomatoes.

In a further aspect, the invention provides the use of a ation of the present invention or an agrochemical ition of the present invention for increasing sugar content in crops. The combination of components (i) and (ii) of the t invention 2O has been found to have surprising efficacy for improving sugar content in crops. In particular, the invention has been found useful for increasing sugar content in fruit crops. For e, the present invention has been shown to be useful in sing sugar content in tomatoes.

In a further aspect, the invention provides the use of a combination of the present invention or an agrochemical composition of the present invention for increasing the proportion of dried matter in crops. The ation of components (i) and (ii) of the present ion has been found to have surprising efficacy for increasing dried matter in crops. In particular, the present invention has been shown to be useful for increasing the proportion of dried matter in fruit and salad crops. For example, the present invention has been shown to be useful in increasing dried matter in tomatoes.

In a further aspect, the invention provides the use of a combination of the present invention or an agrochemical composition of the present invention for reducing rotting in crops. The combination of components (i) and (ii) of the present invention has been found to have sing efficacy for reducing rotting in crops. In ular, the present invention has been shown to be useful in ng g in fruit, e.g. soft fruit such as strawberries.

In a further aspect, the invention provides the use of a combination of the present invention or an agrochemical composition of the present invention for reducing bruising in crops. The combination of components (i) and (ii) of the present invention has been found to have surprising efficacy for reducing bruising in crops. In particular, 1O the present ion has been shown to be useful in reducing bruising in root vegetables, such as tubers, e.g. potatoes.

According to one aspect, the invention provides the use of a combination as defined herein or an agrochemical composition as defined herein for: (a) improving shelf life of a crop; (b) improving stress tolerance of a crop; (c) increasing fresh and dry matter content of a crop; (d) improving fruit conformity; and/or 2O (e) increasing tolerance of a crop to disease.

The itions of the invention may further comprise other conventional agrochemical ingredients and agrochemical excipients. Suitable agrochemical ingredients and excipients include but are not limited to macro-nutrients, micro- nutrients (also called phyto-nutrients), vitamins, amino acids, formulation aids (adjuvants), complex agents, plant growth regulators and plant protection actives.

Accordingly, the compositions of the invention may further comprise one or more agrochemical excipients.

Component (i) and component (ii) may be applied to plants simultaneously or sequentially. For example, when the components are applied simultaneously the components can be d as part of an emical composition sing ent (i) and component (ii). Alternatively, when the components are applied sequentially, the components are applied individually and the ation of the invention is formed in situ.

Each component, either combined or individually, or the combination of components described herein (including as agrochemical compositions) may be applied to , in particular crop plants, in any conventional manner, e.g. by soil, water, growth medium, seed treatment, gel, fumigation or foliar application. In some embodiments, foliar application is preferred. The components/combinations of the invention may be d to root systems, stems, seeds, grains, tubers, flowers, fruit, etc. as required.

Examples of means of application include spraying, e.g. by means of an electrostatic or other conventional sprayer, or drip irrigation methods or fertigation systems, which involve application directly to the soil, so as to allow ium and/or iron uptake through the roots.

The components/combinations/compositions of the ion may be adapted for the means of ation, e.g. prepared in a form suited to the required means of ation. These adaptations may take the form of liquid or solid concentrates, which require dilution before ation. The components/combinations/compositions may be formed into, for e, water dispersible granules, slow or fast release es, 2O soluble concentrates, oil miscible liquids, ultra low volume liquids, emulsifiable concentrates, dispersible concentrates, oil in water, and water in oil emulsions, micro- ons, suspension concentrates, aerosols, capsule suspensions and seed treatment formulations.

The components/combinations/compositions of the present invention may be prepared using any conventional techniques and methods; for example preparing granules, dispersible concentrates, and suspension concentrates.

The invention also relates to a formulation for administration to plants or to the environment of plants, the formulation comprising a composition according to the invention and a medium in which the composition may be dispersed or dissolved.

The combinations and compositions of the invention are suitable for use on most crops, but in particular can be used for the treatment of greenhouse crops, vegetables, and fruit crops. For example, the combinations and compositions of the invention may be used on but not limited to cereals, oil seed rape, potatoes, sugar beet, vegetable crops, leafy vegetables (such as lettuce), fruits (such as tomatoes and strawberries), cucurbits and grassland.

The amount of composition or formulation applied in any particular situation will vary depending upon a number or factors such as the crop species, the g system and practice at the region, season, soil and other inputs. Applications timing and dosage are important and dependent on plant growth and development stages.

As used herein, the term C1-C3 alkyl is ed to mean substituted or unsubstituted hydrocarbon groups with a carbon chain length of between 1 and 3.

As used , the term C1-C3 haloalkyl is intended to mean hydrocarbon groups with a carbon chain length of between 1 and 3, wherein at least one hydrogen atom has been substituted for a halogen atom (e.g. F, Br, C1 or I).

As used herein, the term “substituted” means substituted with a substituent selected from a halogen (F, Br, C1 or I), a hydroxy group, an alkoxy group, a nitro group, a cyano 2O group, an amino group, an azido group, an amidino group, a hydrazino group, a hydrazono group, a carbonyl group, a carbamyl group, a thiol group, a carboxyl group or a salt thereof and a combination thereof.

The invention will now be particularly described by way of the following non-limiting es.

Examples The ing abbreviations are used herein: CaN m nitrate obtained from Sigma Aldrich IN Inositol obtained from Sigma Aldrich LA Linolenic acid obtained from Sigma Aldrich Linolenate Ethyl linolenate ed from Sigma Aldrich Mg/l means the same as mg/lt, i.e. milligrams per litre.

Each ation was diluted in distilled water.

The formulations were prepared by adding the individual components to water, followed by mixing. The formulations were then further diluted in distilled water (further information .

Each formulation was first prepared as a 2 litre stock solution. Each 2 litre stock on was then applied per hectare (i.e. 2 litre/ha) having been diluted further with distilled water to a total volume of 150 litres. e 1 (Lettuce) The formulations were d at 2lt/ha equivalent (diluted in 15olt of water) to cover an area of 10,000m2. 16 plants per m2 receiving 15ml or 0.938ml per plant. A flat fan nozzle at 1100 was used to spray the plant’s foliage.

The following treatments were tested on mechanically planted lettuce for uniformity. 2O Water loss (%) was measured as an indicator of shelf-life. The shelf-life of the lettuce was measured by ng a harvested lettuce (cut in half) to dry at ambient temperature for 72 hours. The weight of the lettuce was measured before and after drying, and the weight loss calculated; this represents water loss. 10 replicates were used for each treatment and the plants were under controlled ouse condition to avoid external parameters affecting the results. Distilled water was used for all treatments. Samples were collected 5 days after application.

The results are reported in Table 1 and Table 2.

The statistical significance is measured by ing the standard error of difference of the means. If the difference between the means is higher than the LSD (least significant difference) then the difference is statistically significant. In normalised datasets the LSD is near the standard error of difference lied by 2. For the statistics in this study Genstat was used to analyse the data statistically.

The concentrations below indicate the concentration of each component in the diluted (150 litre) formulation. The tration of linolenic acid is the amount required to apply a 100 nmol dose of linolenic acid per plant (based on 160,000 lettuce plants per hectare).

Table 1: Content (on Waterless Co) InontotCtC none/1t (LA) Treatment 1.3 100mg/lt _ IN 30m lt ——_— The results of the trial reported in Table 1 show that lettuce d with a combination of linolenic acid and inositol ment 1.3) exhibited significantly lower water loss during the period of the test compared to linolenic acid and inositol alone (treatments 1.2 and 1.1 respectively). In particular, using linolenic acid and inositol alone (treatments 1.2 and 1.1 respectively) ed no statistically cant improvement over control. In contrast, the combination of linolenic acid and ol (treatment 1.3) exhibited a statistically significant improvement over the control and over either active ingredient alone. The performance of the combination was therefore unexpected.

The concentrations below indicate the concentration of each component in the diluted (150 litre) formulation. The tration of linolenic acid is the amount required to 2O apply a 100 nmol dose of linolenic acid per plant (based on 160,000 lettuce plants per hectare). The concentration of CaN is a result of diluting a 20 wt% CaN stock solution to 150 litres.

Table 2: Cotent (at) Waterlooe Co) 4H2O (CaN) ———— LA 30m lt Treatment 2.3 CaN . 17.7 ——_— Likewise, the results of the trial reported in Table 2 show that lettuce treated with a combination of linolenic acid and inositol (in the presence of m nitrate) (treatment 2.3) exhibited cantly lower water loss during the period of the test compared to linolenic acid and inositol alone (in the presence of calcium nitrate) (treatments 2.2 and 2.1 respectively). In particular, using linolenic acid and inositol alone (in the presence of calcium nitrate) (treatments 2.2 and 2.1 respectively) produced no statistically significant improvement over control (+). In st, the combination of linolenic acid and inositol (in the presence of calcium e) (treatment 2.3) exhibited a statistically significant improvement over the control (+) and over either active ingredient alone. The performance of the ation was therefore unexpected.

The formulations above were also tested on lettuce when applying at 11t/ha, 2lt/ha, 3lt/ha, 4lt/ha and 5lt/ha as a dose finding exercise. All doses ed similar results with that of 2lt/ha providing the highest comparatively.

The ratio used (100mg/lt inositol and 30 mg/lt LA) was chosen after tests on lettuce 2O using inositol at 10mg/lt, 100mg/lt and lt and LA at 3.0 mg/lt, 30 mg/lt and 150 mg/lt showed that the synergistic ty was retained at all doses and all ratios, with the highest results obtained when 100mg/lt inositol was combined with 30 mg/lt LA. The other ations were also superior to the ingredients on their own.

Example 2 (Tomatoes) Plants were sprayed three times, first at flowering, then when fruit size was 2-3mm and again when fruit size was 20mm diameter. This was applied at 2lt/ha equivalent diluted in 15olt of water to cover an area of 10,000m2. Measurements were taken from the middle of the season so the fruits were not the first fruits produced.

The methodology for water loss analysis was the same as that for Example 1 above.

Sugar t was analysed using a refractometer using the sap.

Dry matter results were obtained in the following way. The freshly harvested tomatoes were weighted, and then oven-dried at 45-50°C for 48 hours. The ried tomatoes were then weighed. Dry matter percentage (%) is weight of is freshly ted tomatoes/weight of oven-dried tomatoes X 100.

The results are reported in Table 3 and Table 4.

The concentrations below indicate the concentration of each component in the diluted (150 litre) formulation. The concentration of nic acid is the amount required to apply a 100 nmol dose of linolenic acid per plant (based on 4,500 tomato plants per hectare). The concentration of CaN is a result of diluting a 20 wt% CaN stock on to 150 litres.

Table 3: ent Content (ai) Conc. Water loss Dry Matter (%)* (%) Control Water 100% 4.0 6.3 Treatment 3.1 Inositol (IN) 100mg/lt 4.0 6.2 Treatment 3.2 Linolenic Acid 0.84mg/lt 3.9 6.4 (LA) Treatment 3.3 LA 3.7 6.9 LSD 0.168 0.4 The results of the trial reported in Table 3 show that tomatoes treated with a combination of linolenic acid and inositol (treatment 3.3) exhibited significantly lower water loss during the period of the test compared to linolenic acid and inositol alone (treatments 3.2 and 3.1 respectively). In particular, using linolenic acid and inositol alone (treatments 3.2 and 3.1 respectively) produced no statistically significant improvement over control. In st, the combination of linolenic acid and inositol (treatment 3.3) exhibited a tically significant ement over the control and over either active ingredient alone. The performance of the combination was therefore unexpected.

In addition, the results ed in Table 3 show that tomatoes treated with a combination of linolenic acid and inositol (treatment 3.3) exhibited cantly 1O greater dry matter (%) compared to linolenic acid and inositol alone (treatments 3.2 and 3.1 respectively). In ular, using linolenic acid and ol alone (treatments 3.2 and 3.1 respectively) produced no statistically significant improvement over control.

In st, the combination of linolenic acid and inositol (treatment 3.3) exhibited a statistically significant improvement over the control and over either active ingredient alone. The performance of the combination was therefore unexpected.

The concentrations below indicate the concentration of each component in the diluted (150 litre) formulation. The concentration of linolenic acid is the amount required to apply a 100 nmol dose of linolenic acid per plant (based on 4,500 tomato plants per 2O hectare). The concentration of CaN is a result of diluting a 20 wt% CaN stock solution to 150 litres.

Table 4: Treatment Content (ai) Conc. Water loss Sugar (%)* contml (Jr) ca Nitrate 4H2O (CaN) Treatment 4.1 Treatment 4.2 Treatment 43 -3.0 2.8 ————— Likewise, the s of the trial reported in Table 4 show that tomatoes treated with a combination of linolenic acid and inositol (in the presence of calcium nitrate) (treatment 4.3) exhibited significantly lower water loss during the period of the test compared to linolenic acid and inositol alone (in the presence of calcium nitrate) (treatments 4.2 and 4.1 respectively). In particular, using linolenic acid and inositol alone (in the presence of calcium nitrate) produced no statistically cant improvement over control (+). In contrast, the combination of linolenic acid and inositol (in the presence of calcium nitrate) (treatment 4.3) exhibited a tically significant improvement over the control (+) and over either active ingredient alone (in the presence of calcium nitrate. The efficacy of the ation was therefore unexpected.

The formulations above were also tested on tomato plants when applying at 11t/ha, 2lt/ha, 3lt/ha, 4lt/ha and 5lt/ha as a dose finding exercise. All doses produced similar s with that of 2lt/ha providing the highest comparatively.

The ratio used (100mg/lt inositol and 2.99mg/lt LA) was chosen after tests on tomato plants using ol at 10mg/lt, 100mg/lt and 500mg/lt and LA at g/lt, 2O 0.84mg/lt and 4.2mg/lt showed that the synergistic activity was retained at all doses and all , with the highest results obtained when 100mg/lt ol was combined with g/lt LA. The other combinations were also superior to the ingredients on their own.

The formulations described above in Example 1 were also tested on tomato plants, and similar results were observed.

Example 3 (Strawberries) The experiment was setup in a farm in south Lincolnshire. Standard farming practice was applied and the treatments were superimposed to that.

Appropriate replication and number of ements were decided to ensure statistical conformity.

The strawberries grown hydroponically received 2lt/ha (in 1501t water/ha) of the formulation applied by foliar ng 3 times at 12 days interval from flowering.

Experienced pickers collected the ripe berries for analysis on the same day of harvest.

The g test ran over 15 days with time lapse photography and calculating the percentage coverage of fungal growth.

The concentrations below indicate the concentration of each component in the d (150 litre) formulation. The concentration of linolenic acid is the amount required to 1O apply a 100 nmol dose of linolenic acid per plant (based on 26,000 strawberry plants per hectare). The concentration of CaN is a result of diluting a 20 wt% CaN stock solution to 150 litres.

The results are reported in Table 5 and Table 6.

Table 5: Treatment Content (ai) Conc. Rot (%) Control Water 100% 65 ent 5.1 Inositol (IN) lt 58 Treatment 5.2 nic Acid (LA) 4.83mg/lt 60 Treatment 5.3 IN 100mg/lt 23 LA 4.83mg/lt LSD 9 The results of the trial reported in Table 5 show that strawberries treated with a combination of nic acid and inositol (treatment 5.3) exhibited significantly lower 2O tendency to rot compared to erries treated with either linolenic acid and inositol alone (treatments 5.2 and 5.1 respectively). In particular, using linolenic acid and inositol alone (treatments 5.2 and 5.1 respectively) produced no statistically significant improvement over control. In contrast, the combination of linolenic acid and inositol (treatment 5.3) exhibited a statistically significant improvement over the control and over either active ingredient alone. The performance of the combination was ore unexpected.

The trations below indicate the concentration of each component in the diluted (150 litre) formulation. The concentration of linolenic acid is the amount required to apply a 100 nmol dose of linolenic acid per plant (based on 26,000 strawberry plants per hectare). The concentration of CaN is a result of diluting a 20 wt% CaN stock solution to 150 litres.

Table 6: Treatment Content (ai) Control (+) Ca e 4H2O (CaN) ent 6.1 CaN Treatment 6.2 CaN Treatment 6.3 Likewise, the results of the trial reported in Table 6 show that strawberries treated with a combination of linolenic acid and inositol (in the presence of calcium nitrate) (treatment 6.3) ted significantly lower tendency to rot compared to strawberries treated with either linolenic acid or inositol alone (in the presence of m nitrate) (treatments 6.2 and 6.1 respectively). In particular, using linolenic acid and inositol alone (in the presence of calcium nitrate) produced no statistically significant improvement over control (+). In contrast, the ation of linolenic acid and inositol (in the ce of calcium nitrate) (treatments 6.2 and 6.1 tively) exhibited a statistically significant improvement over the control (+) and over either active ingredient alone. The performance of the combination was therefore unexpected.

The formulations above were also tested on strawberry plants when applying at 11t/ha, 2lt/ha, 3lt/ha, 4lt/ha and 5lt/ha as a dose finding exercise. All doses ed similar results with that of 2lt/ha providing the highest comparatively.

The ratio used (100mg/lt ol and 4.83mg/lt LA) was chosen after tests on strawberry plants using inositol at 10mg/lt, 100mg/lt and lt and LA at 0.483mg/lt, 4.83mg/lt and 24.15mg/lt showed that the synergistic activity was retained at all doses and all ratios, with the highest results obtained when 100mg/lt inositol was combined with 4.83mg/lt LA. The other combinations were also superior to the ingredients on their own.

The ations described above in Example 1 were also tested on strawberry plants, and similar results were observed.

Example 4 (Potatoes) Potatoes of the y Maris Piper were cultivated as standard farm practice in Lincolnshire. Typical fertiliser and pesticide inputs were applied as blanket over all treatments. The treatments were superimposed on top of the standard practice.

Bruising: Uniform potato tubers were d from 1.5m height. They were left for 10 days in a store at 22°C to promote bruising and assessed by cutting in half and scoring the bruising with a scale from 1-10 (1 = no bruising, 10 = bruise with 2cm diameter).

The results are reported in Table 7 and Table 8.

The concentrations below indicate the concentration of each component in the diluted (150 litre) ation. The concentration of linolenic acid is the amount required to apply a 100 nmol dose of linolenic acid per plant (based on 24,000 potato plants per e). The concentration of CaN is a result of ng a 20 wt% CaN stock solution to 150 litres.

Table 7: <ai> Bisingmu-m Treatment 7.1 Inositol (IN) 100mg/lt _ WWW445mm The results of the trial reported in Table 7 show that potatoes treated with a combination of linolenic acid and inositol (treatment 7.3) ted significantly lower tendency to bruise compared to potatoes treated with either linolenic acid or inositol alone (treatments 7.2 and 7.1 respectively). In particular, using linolenic acid and inositol alone (treatments 7.2 and 7.1 respectively) produced no tically significant improvement over control. In contrast, the combination of linolenic acid and inositol ment 7.3) eXhibited a statistically significant improvement over the control and over either active ingredient alone. The performance of the combination was therefore uneXpected.

The concentrations below indicate the concentration of each component in the diluted (150 litre) formulation. The concentration of linolenic acid is the amount required to apply a 100 nmol dose of linolenic acid per plant (based on 24,000 potato plants per hectare). The concentration of CaN is a result of diluting a 20 wt% CaN stock solution to 150 litres.

Table 8. Experiment on potatoes (Ca) Treatment Content (ai) Bruising (1-10) Control (+) Ca Nitrate 4H2O 7-5 (CaN) ent 8.1 CaN 6.7 Treatment 8.2 CaN Treatment 8.3 2O Likewise, the s of the trial reported in Table 8 show that potatoes treated with a combination of linolenic acid and inositol (in the ce of calcium nitrate) (treatment 8.3) exhibited significantly lower tendency to bruise compared to potatoes treated with either linolenic acid or inositol alone (in the presence of calcium nitrate) (treatments 8.2 and 8.1 tively). In particular, using inositol alone (in the presence of calcium nitrate) (treatment 8.1) produced no statistically cant improvement over control (+). In contrast, the ation of linolenic acid and inositol (in the presence of calcium nitrate) (treatment 8.3) exhibited a statistically significant improvement over the control (+) and over either active ingredient alone.

Furthermore, the magnitude of the improvement exhibited by the combination of linolenic acid and inositol (in the presence of calcium nitrate) (treatment 8.3) with respect to the improvement exhibited by inositol (in the presence of calcium nitrate) (treatment 8.2) proves that there is an unexpected improvement with the combination of ent 8.3.

The formulations above were also tested on potato plants when applying at 11t/ha, 2lt/ha, 3lt/ha, 4lt/ha and 5lt/ha as a dose finding exercise. All doses produced similar results with that of 2lt/ha ing the highest comparatively.

The ratio used (100mg/lt inositol and 4.45mg/lt LA) was chosen after tests on potato plants using ol at 10mg/lt, 100mg/lt and 500mg/lt and LA at 0.445mg/lt, 2O 4.45mg/lt and 22.25mg/lt showed that the synergistic activity was retained at all doses and all ratios, with the highest results obtained when lt inositol was combined with 4.45mg/lt LA. The other combinations were also superior to the ingredients on their own.

The formulations described above in Example 1 were also tested on potato plants, and similar results were observed.

Example 5 The following treatments were tested on ically planted lettuce for uniformity.

Water loss (%) was ed as an indicator of life. The shelf-life of the lettuce was measured by allowing a harvested e (cut in half) to dry at ambient temperature for 72 hours. The weight of the lettuce was measured before and after drying, and the weight loss calculated; this represents water loss. 10 replicates were used for each treatment and the plants were under controlled greenhouse condition to avoid external parameters affecting the results. Distilled water was used for all treatments. Samples were collected 5 days after ation.

The results are reported in Table 9.

The concentrations below indicate the concentration of each component in the diluted (150 litre) ation. The concentration of linolenic acid is the amount required to apply a 100 nmol dose of linolenic acid per plant (based on 16,000 lettuce plants per hectare). The concentration of CaN is a result of diluting a 20 wt% CaN stock solution to 150 litres.

Table 9: ments on lettuce CaN 0.13 wt% 17.4 Inositol Phosphate 150mg/lt Inositol Phosphate nate Inositol Phospahte Linolenate Throughout this specification and the claims that follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated r or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.

The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an ledgment or admission or any form of suggestion that that prior publication (or ation derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.

Claims (7)

Claims

1. An agrochemical combination comprising (i) α-linolenic acid and (ii) inositol.

2. The ation according to claim 1, wherein the combination further comprises a source of calcium.

3. The combination according to claim 2, wheraein the source of calcium is 10 selected from the group consisting of calcium ammonium nitrate, calcium nitrate, calcium hydroxide, calcium ide, calcium acetate, calcium acetylsalicylate, calcium , calcium borogluconate, calcium carbonate, calcium de, calcium citrate, m ferrous citrate, calcium glycerophosphate, calcium lactate, calcium oxide, calcium pantothenate, 15 calcium propionate, calcium saccharate, calcium sulphate, calcium phosphate and calcium tartrate.

4. An agrochemical composition comprising a combination as d in any one of claims 1 to 3.

5. Use of a combination as defined in any one of claims 1 to 3 or an emical composition as defined in claim 4 for improving plant physiology.

6. Use of a combination as defined in any one of claims 1 to 3 or an agrochemical 25 ition as defined in claim 4 for improving crop yield and/or crop quality characteristics.

7. Use of a combination as defined in any one of claims 1 to 3 or an emical composition as defined in claim 4 for: (a) improving shelf life of a crop; (b) improving stress tolerance of a crop; (c) increasing fresh and dry matter content of a crop; (d) improving fruit conformity; and/or 35 (e) increasing tolerance of a crop to disease.