Abstract: This invention relates to a new formulation activating the absorption of mineral nutrients by plants. Consequently, it has also an effect on the metabolization of these mineral compounds by the plant. These formulations that have been discovered with this property activating nutrient absorption have as main component the compounds represented by general formula 1 CH3—S—CH2—CH2—CH(OR1)—COR2??1 where R1 is selected from the group formed by hydrogen, alkyl rests, (preferably methyl or ethyl), and aryl: while R2 is selected from the group formed by hydroxyl, amides, alkyl rest esters (preferably methyl or ethyl), or aryl. When the rest is hydroxyl, acid salts with monovalent cations, preferably Na+ and K+, polyvalent cations, preferably Cu++ and Fe+++, and electropositive organic compounds such as amines (e.g., ethanolamine) are also considered.

Abstract: A new use of 2-hydroxy-4-methylthiobutanoic acid (HMTB) as an inducer, within the plant, of ethylene and polyamine synthesis, mainly putrescine, capable of regulating fruit maturation processes, both in relation to fruit abscission and in relation to color and sugar content, containing mineral elements such as phosphorous, potassium and nitrogen.

Abstract: This invention relates to a new formulation activating the absorption of mineral nutrients by plants. Consequently, it has also an effect on the metabolization of these mineral compounds by the plant. These formulations that have been discovered with this property activating nutrient absorption have as main component the compounds represented by general formula I CH3-S—CH2-CH2—CH(OR1)—COR2 I where R1 is selected from the group formed by hydrogen, alkyl rests, (preferably methyl or ethyl), and aryl: while R2 is selected from the group formed by hydroxyl, amides, alkyl rest esters (preferably methyl or ethyl), or aryl. When the rest is hydroxyl, acid salts with monovalent cations, preferably Na+ and K+, polyvalent cations, preferably Cu++ and Fe+++, and electropositive organic compounds such as amines (e.g., ethanolamine) are also considered.

Abstract: The object of the present invention is a new set of formulations with the potential to increase the efficiency of a plant's assimilation of nutrients both in normal conditions and in conditions of nutrient deficiency. It is especially effective in the case of iron assimilation in conditions of deficiency of this micronutrient, by improving and potentiating a plant's specific response to iron deficiency, increasing the plants capacity to mobilize and assimilate the iron present in non-assimilable forms.

Abstract: The composition contains a fundamental active ingredient consisting of the association of thymol, eugenol and cinnamaldehyde, a secondary active ingredient consisting of the association of cuminaldehyde, geraniol, vanillin, borneol, menthol, anethole, terpineol, limonene and different glycosides contained in the essences of mustard and jasmine, a surface-active selected among the different families accepted as emulsifying food additives and an oligosaccharide selected among the mono-oligosaccharides, fructo-oligosaccharides, phyco-oligosaccharides proceeding from algae extracts or vegetable tissue. The composition that has just been described is applied to fruit and vegetables in a diluted bath or in solid form incorporated into the waxes that are usually used in post-harvest treatments.

Abstract: It consists of using a precursor compound of cyclic AMP, or an inhibitor compound of the enzymes of the Phosphodiesterases family, or a stimulating compound of the enzymes of the Adenyl-Cyclase family, or an agonist compound of the &bgr;-adrenergic receptors to which arachidonic acid or a prostaglandin is added. The composition object of the invention can be presented mixed with mineral fertilizers (such as amonic nitrate, monopotassium phosphate, etc.), with phytoregulators (such as cytoquinines, auxines, giberelines, polyamines, n-ethanolamines, sugars . . . ) or with any type of phytosanitary product (such as fungicides, herbicides etc.). The composition object of the invention can be formulated with tensoactive agents (such as Tween 80), moistening agents etc. The composition object of the invention can be applied to any species of plant and at any point in its life cycle.