48 results about "Peronospora" patented technology

The present invention relates to a spinach plant which may comprise a single dominant gene which confers resistance to Peronospora farinosa f. sp. spinaciae races Pfs1, Pfs2, Pfs3, Pfs4, Pfs5, Pfs6, Pfs9, Pfs11, Pfs12, Pfs13 and UA4410, wherein the gene is obtainable by introgression from a plant grown from seeds of which a representative sample was deposited with the NCIMB under NCIMB accession number 41857. The invention further relates to progeny of the plant, to propagation material therefore, such as seed, and to food products which may comprise the spinach leaves.

The present invention relates to a bactericide composition containing dimethomorph and its preparation and application. The said composition is compounded composed of dimethomorph, cymoxanil and/or dimethormorph, cymoxanil, metalaxyl and/or d dimethormorph, phosethyl-Al and mancozeb. Its characteristic is the weight percentage of said effective components is: dimethormorph 1 to 90 percent; cymoxanil 1 to 90 percent; metalaxyl 1 to 90 percent; phosethyl-Al 1 to 90 percent; mancozeb 1 to 90 percent. The said composition can be prepared into missible oil, wettable powder, soluble powder, water emulsion, micro emulsion, water solution, suspending agent, microcapsule, or water dispersible granule. The said composition can be used for preventing and controlling plant diseases caused by peronospora, false peronospora and phytophthora. Indoor tests have shown that the said composition has obvious synergies, and good activity for postponing insecticide resistance of pathogenic bacteria.

The invention provides for spinach plants with broad-spectrum resistance to downy mildew disease and their progeny. Such plants may comprise unique combinations of alleles resulting in the broad-spectrum resistance to downy mildew. In certain aspects, compositions, including distinct polymorphic molecular markers, and methods for producing, using, identifying, selecting, and the like of plants or germplasm with resistance to downy mildew are provided.

The present disclosure provides for unique spinach plants with broad-spectrum resistance to downy mildew and their progeny. Such plants may comprise an introgressed QTL associated with the broad-spectrum resistance to downy mildew. In certain aspects, compositions, including distinct polymorphic molecular markers, and methods for producing, using, identifying, selecting, and the like of plants or germplasm with resistance to downy mildew are provided.

The invention discloses a bactericide composite, belonging to the technical field of compounded pesticide. The trifloxystrobin and chlorothalonil compounded pesticide is characterized in that the mixture ratio of the trifloxystrobin and the chlorothalonil is 1:70-20:1. The trifloxystrobin and chlorothalonil compounded pesticide can be used for multiple crops in order to control multiple plant diseases, and has good effects on the Peronospora and the immunoenzyme germina; furthermore, as the ingredients have different mechanism of action to have mutual synergy, the drug fastness of germina is reduced, and the sterilizing effect of the composite is obviously higher than the sterilizing effect when each of the ingredients is singly used, thus having the advantages of synergy and expanding sterilization spectrum, etc.

The current invention concerns a spinach plant comprising resistance against Peronospora farinosa races 1-9, 11-15 and isolate UA1014APLP.

The invention relates to a bactericide composition containing dimethomorph and preparation method and application thereof. The composition comprises the following effective components by weight percentage: 1-90% dimethomorph, 1-90% phosethyl-Al, 1-90% mancozeb. The composition is added with adequate additive and carrier to be processed into oil emulsion, wettable powder, soluble powder, aqueous emulsion, micro-emulsion, aqua, dispersant, microcapsule or water dispersible granule. The composition is used for preventing the plant disease due to peronospora, pseudoperonospora, phytophthera. The indoor test shows that the composition has obvious synergism and good suspension effect on pathogenic bacteria drug-resistance.

The present invention relates to an allele designated alpha-WOLF 15 which confers resistance to at least one Peronospora farinosa f. Sp. spinacea race, wherein the protein encoded by said allele is a CC-NBS-LRR protein that comprises in its amino acid sequence: a) the motif “MAEIGYSVC” at its N-terminus; and b) the motif “KWMCLR”; and wherein the LRR domain of the protein has in order of increased preference at least 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 100% sequence similarity to SEQ ID No:10. The allele when homozygously present in a spinach plant confers complete resistance to Peronospora farinosa f. Sp. spinacea races pfs:1, pfs:2, pfs:3, pfs:4 and pfs:5, pfs:6, pfs:8, pfs:9, pfs:11, pfs:12, pfs:13, pfs:14, pfs:15, pfs:16 and isolates UA1014 and US1508, and confers intermediate resistance to pfs:10, and does not confer resistance to pfs:7.

The invention relates to a sterilization composition containing pyrisoxazole and flumorph. The sterilization composition is prepared by compounding effective ingredients of pyrisoxazole and flumorph in binary, wherein the mass ratio of pyrisoxazole to flumorph is 1-50 : 50-1. In the preparation, the mass of the effective ingredients of pyrisoxazole and flumorph accounts for 1%-80% of the total mass of the composition; and the residual parts are auxiliary components that are permissible and acceptable in pesticides. The preparations of the sterilization composition can be missible oil, suspension preparation, wettable powder, water dispersible granules, water emulsion, microemulsion, granules and microcapsules. The sterilization composition is mainly used for preventing plant botrytis, peronospora and epidemic toxin germs.

The present invention relates to an allele designated alpha-WOLF 8 which confers resistance to at least one Peronospora farinosa f. Sp. spinacea race, wherein the protein encoded by said allele is a CC-NBS-LRR protein that may comprise in its amino acid sequence: a) the motif “MAEIGYSVC” at its N-terminus; and b) the motif “KWMCLR”; and wherein the LRR domain of the protein has in order of increased preference at least 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 100% sequence similarity to SEQ ID No:12. When the allele is homozygously present in a spinach plant confers complete resistance to Peronospora farinosa f. Sp. spinacea races pfs:1, pfs:2, pfs:6, pfs:8 and pfs:15, and confers intermediate resistance to pfs:5, pfs:10 and pfs:16, and does not confer resistance to pfs:3, pfs:4, pfs:7, pfs:9, pfs:11, pfs:12, pfs:13 and pfs:14.

The invention discloses a plant immune activator protein secreted by peronospora viticola, a primer and application. The amino acid sequence of the plant immune activator protein is as shown in SEQ ID NO.2, the nucleotide sequence of the coding gene of the plant immune activator protein is as shown in SEQ ID NO.1, the amino acid sequence of a mutant PvAvh77-M2 of the plant immune activator protein is as shown in SEQ ID NO.4, and the nucleotide sequence of the coding gene of the plant immune activator protein is as shown in SEQ ID NO.3. The mutant PvAvh77-M2 of the plant immune activator protein can induce expression of grape disease-resistant related genes and accumulation of defensive substances, inhibit infection of plasmopara viticola and reduce harm of downy mildew to grapes, and can be used as a biopesticide for preventing downy mildew of the grapes.

The invention relates to a bactericidal composition containing fluopimomide and flumorph. The bactericidal composition is composed of, by mass 1 to 80% of effective ingredients fluopimomide and flumorph, and the balance an auxiliary component acceptable in pesticides; wherein the mass ratio of fluopimomide and flumorph is controlled to be 1-50:50-1. The bactericidal composition can be prepared into missible oil, suspending agent, wettable powder, water dispersible granule, emulsion in water, micron emulsion, particulate agent, and microcapsule formulation, and is mainly used for prevention andtreatment of plant gray mold, Peronospora, and Phytophthora.

The invention belongs to the technical field of compound compositions of bactericides, relates to an oxathiapiprolin and cnidiadin containing compound composition and application thereof, in particular to application of a bactericide compounded from oxathiapiprolin and cnidiadin to control of crop diseases caused by oomycetes. The compound composition comprises the oxathiapiprolin and the cnidiadin as active components, wherein the weight ratio of the oxathiapiprolin to the cnidiadin is 40:1 to 5:20. The oxathiapiprolin and cnidiadin containing compound composition is applied to the agricultural field, and particularly has a good control effect on phytophthora diseases caused by phytophthora (such as tomato late blight, cherry stalk rot and the like) and downy mildew caused by peronospora(such as grape downy mildew).

The invention relates to a composition for preventing and curing Botrytis cinerea. The dosage of the composition is a suspoemulsion; the active ingredients of the bactericide are cnidium lactone and pyrimethanil; the auxiliaries are alkylaryl polyoxyethylene ether, silkworm excrement, silicone and hydroxyethyl cellulose. The composition for preventing and curing the Botrytis cinerea, provided by the invention, has a very good preventing and curing effect on Peronospora schleidenii; through the adoption of preventing and curing effects of the cnidium lactone and the pyrimethanil on the Peronospora schleidenii, the composition for preventing and curing the Botrytis cinerea, provided by the invention, has the advantages of quick effectiveness, long lasting period and no influence on non-target crops.