Seed coatings
AssigneeAgricultural Genetics Company Limited
InventorPaul M. Williams
Life of this patent
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Abstract
The invention relates to a soybean seed, lucerne seed or clover seed coated with an inoculant composition comprising a carrier medium, a beneficial microorganism and an adhesive polymeric material. A high average loading of viable organisms per seed is maintained in storage.
Claims24
A soybean seed coated with an inoculant composition comprising a carrier medium, a microorganism having a beneficial effect on the seed or resulting plant, and an adhesive polymeric material, said seed having an average loading of at least 10.sup.5 viable organisms per seed, which loading is maintained under conditions of storage in a sealed irradiated polythene bag at room temperature for at least five months, and wherein:
- said carrier is selected from the group consisting of peat, vermiculite, clay, silt, graphite, talc, filter mud, coir dust, bagasse, composted corn cobs, and coal dust;
- said adhesive polymer is selected from the group consisting of copolymers of vinyl pyrrolidone, and vinyl acetate, poly (methyl vinyl ether), maleic anhydride copolymers, free acids of the copolymer of methyl vinyl ether and maleic anhydride, vinyl pyrrolidone/styrene copolymers, partially hydrolyzed polyvinyl alcohols, vinyl acetate/butyl acrylate copolymers, vinyl acetate homopolymers, acrylic copolymers, styrene/acrylic ester copolymers, vinyl acetate/ethylene copolymers and polyvinyl acetate;
- and
- said microorganism is selected from the group consisting of bacteria of the genera Rhizobium, Pseudomonas, Serratia, Bacillus, Pasteuria, Azotobacter, Enterobacter, Azospirillum, Cyanobacteria, fungi of the genera Gliocladium, Trichoderma, Coniotherium, Verticillium, Paecilomyces, Metarhizium, mycorrhizal fungi and entomophilic nematodes.
A lucerne seed coated with an inoculant composition comprising a carrier medium, a microorganism having a beneficial effect on the seed or resulting plant, and an adhesive polymeric material, said seed having an average loading of at least 10 viable organisms per seed, which loading is maintained under conditions of storage in a sealed irradiated polythene bag at room temperature for at least six months, and
- wherein said carrier is selected from the group consisting of peat, vermiculite, clay, silt, graphite, talc, filter mud, coir dust, bagasse, composted corn cobs, and coal dust;
- said adhesive polymer is selected from the group consisting of copolymers of vinyl pyrrolidone, and vinyl acetate, poly (methyl vinyl ether), maleic anhydride copolymers, free acids of the copolymer of methyl vinyl ether and maleic anhydride, vinyl pyrrolidone/styrene copolymers, partially hydrolyzed polyvinyl alcohols, vinyl acetate/butyl acrylate copolymers, vinyl acetate homopolymers, acrylic copolymers, styrene/acrylic ester copolymers, vinyl acetate/ethylene copolymers and polyvinyl acetate;
- and
- said microorganism is selected from the group consisting of bacteria of the genera Rhizobium, Pseudomonas, Serratia, Bacillus, Pasteuria, Azotobacter, Enterobacter, Azospirillum, Cyanobacteria, fungi of the genera Gliocladium, Trichoderma, Coniotherium, Verticillium, Paecilomyces, Metarhizium, mycorrhizal fungi and entomophilic nematodes.
A clover seed coated with an inoculant composition comprising a carrier medium, a microorganism having a beneficial effect on the seed or resulting plant, and an adhesive polymeric material, said seed having an average loading of at least 10 viable organisms per seed, which loading is maintained under conditions of storage in a sealed irradiated polythene bag at room temperature for at least three months, and wherein:
- said carrier is selected from the group consisting of peat, vermiculite, clay, silt, graphite, talc, filter mud, coir dust, bagasse, composted corn cobs, and coal dust,
- said adhesive polymer is selected from the group consisting of copolymers of vinyl pyrrolidone and vinyl acetate, poly (methyl vinyl ether), maleic anhydride copolymers, free acids of the copolymer of methyl vinyl ether and maleic anhydride, vinyl pyrrolidone/styrene copolymers, partially hydrolysed polyvinyl alcohols, vinyl acetate/butyl acrylate copolymers, vinyl acetate homopolymers, acrylic copolymers, styrene/acrylic ester copolymers, vinyl acetate/ethylene copolymers and polyvinyl acetate;
- and
- said microorganism is selected from the group consisting of bacteria of the genera Rhizobium, Pseudomonas, Serratia, Bacillus, Pasteuria, Azotobacter, Enterobacter, Azospirillum, Cyanobacteria, fungi of the genera Gliocladium, Trichoderma, Coniotherium, Verticillium, Paecilomyces, Metarhizium, mycorrhizal fungi and entomophilic nematodes.
Dependencies are inferred from the claim text.