Abstract:
Provided herein is a plant growth regulator formulation comprising a plant growth regulator dispersed in polyvinyl alcohol ("PVA") particles having a mean diameter greater than 1 micron. The present invention also includes an emulsion containing an aqueous dispersion of PVA mean diameter greater than 1 micron. The above formulations are useful in methods of improving a plant growth factor in a plant.
Abstract:
Provided compositions and methods of improving a plant growth factor. The compositions and methods contain combinations of plant growth regulators such asplant growth retardants and inhibitors of ethylene biosynthesis or action. The ethylene inhibitors comprise substituted oxime-ethers having the general formula: (see fig. I) (I) or (see fig. II) (II) where R1 and R2 independently of one another are C1-C6-alkyl, n is 2 or 3 and R3 is hydrogen or C1-C6-alkyl. Specific inhibitors of ethylene biosynthesis or action include: {¢(isopropylidene)-amino!oxy}-acetic acid-2-(methoxy)-2-oxoethyl ester, {(isopropylidene)-amino!oxy}-acetic acid-2-(hexyloxy)-2-oxoethyl ester, {{cyclohexylidene)-amino!oxy}-acetic acid-2-(isopropyloxy)-2-oxyethyl ester (methoxy)-2-oxoethyl ester,¢((isopropylidene)-amino!oxy acetic acid, aminooxyacetic acid, amninoethoxyvinylglycine, rhizobitoxine, silver ions (e.g silver thiosulfate), and 2,5norbornadiene. The plant growth retardants include: compounds with quaternary ammonium, phosphonium or sulphonium moieties such as mepiquat chloride and chloromequat chloride; compounds that contain a nitrogen containing heterocycle such as paclobutrazol, uniconazole and ancymidol; compounds such as acylcylohexanediones (e.g.,trinexapac-ethyl and prohexadion-Ca) and daminozide. Low rate application of the methods and compositions are preferred.
Abstract:
Provided herein is a method of improving at least one plant growth factor in a plant by administering to the plant a first plant growth regulator comprising an inhibitor of ethylene biosynthesis or action. The inhibitor of ethylene biosynthesis is dispersed in polyvinyl alcohol ("PVA") particles having a mean diameter greater than 1 micron. The formulations also contain a second plant growth regulator comprising a plantgrowth retardant.
Abstract:
Provided herein is a plant growth regulator formulation comprising a plant growth regulator dispersed in polyvinyl alcohol ("PVA") particles having a mean diameter greater than 1 micron. The present invention also includes an emulsion containing an aqueous dispersion of PVA encapsulated plant growth regulator particles wherein said particles have a mean diameter greater than 1 micron. The above formulations are useful in methods of improving a plant growth factor in a plant.