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EA-053304-B1 - METHOD AND COMBINATION FOR IMPROVING AGRICULTURAL PRODUCTS

EA053304B1EA 053304 B1EA053304 B1EA 053304B1EA-053304-B1

Abstract

The present invention relates to a method for increasing yield, controlling diseases, and improving the post-harvest quality of crops, plants, or agricultural products using laminarin or a composition containing laminarin. The present invention also relates to combinations of laminarin and additional agrochemically active agents, such as fungicides, for increasing yield, controlling diseases, and improving the post-harvest quality of crops, plants, or agricultural products.

Inventors

  • Каджихара Люсиано
  • Нето Айртон
  • Мегда Флавия

Assignees

  • ЮПЛ КОРПОРЕЙШН ЛИМИТЕД
  • ЮПЛ ЮРОП ЛТД.

Dates

Publication Date
20260504
Application Date
20230307
Priority Date
20220308

Claims (5)

  1. 1. A method for increasing crop yields, controlling diseases and improving the post-harvest quality of crops, plants or agricultural products using laminarin, characterized in that it includes contact of laminarin in combination with a fungicide with crops, plants or agricultural products at the pre-harvest stage; wherein the fungicide is selected from cyazofamid, mandipropamid, boscalid, pyrimethanil, kresoxim, kresoxim-methyl, azoxystrobin, difenoconazole, metiram, pyraclostrobin, procymidone, mancozeb, potassium bicarbonate, triflumizole or a combination thereof; and wherein laminarin is applied at an application rate of 10 to 200 g a.i./ha.
  2. 2. The method according to paragraph 1, characterized in that the agricultural products are selected from agricultural crops, cereals, legumes, fruits, vegetables and cut flowers, in particular from lettuce, onions, sugar beets, strawberries, apples and grapes.
  3. 3. The method according to claim 1, characterized in that laminarin is used in combination with additional agrochemically active agents selected from an insecticide, an anti-sprouting agent, a post-harvest treatment agent, an algaecide, a biological agent, a biostimulant, or a combination thereof.
  4. 4. The method according to paragraph 3, characterized in that additional agrochemically active agents are used individually or jointly in the range from 10 g a.i./ha to 5000 g a.i./ha.
  5. 5. The method according to any one of paragraphs 1-4, characterized in that laminarin is used in combination with a fungicide together, separately, in the form of a premix, tank mixture, or sequentially.

Description

FELIZIANI ERICA ET AL.: Pre- and postliarvest treatment with alternatives to synthetic fungicides to control postharvest decay of sweet cherry, POSTHARVEST BIOLOGY AND TECHNOLOGY, vol. 78, 1 April 2013 (2013-04-01), pages 133-138, XP093043772, AMSTERDAM, NL ISSN: 0925-5214, DOI: 10.1016/j.postharvbio.2012.12.004 abstract paragraph [02.2]page 137, left-hand column, paragraph 3 table 3 JEANNETTE VERA ET AL.: Seaweed Polysaccharides and Derived Oligosaccharides Stimulate Plants, MARINE DRUGS, MOLECULAR DIVERSITY PRESERVATION INTERNATIONAL, BASEL, CH, vol. 9, no. 12, 1 December 2011 (2011-12-01), pages 2514-2525, XP002725876, ISSN: 1660-3397, DOI: 10.3390/MD9122514[retrieved on 2011-1 l-29]abstract paragraphs [02.4], [03.4], [004.] GARDE-CERDaN T. ET AL.: Chitosan and Laminarin as Alternatives to Copper for Plasmopara viticola Control: Effect on Grape Amino Acid, JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, vol. 65, no. 34, 30 August 2017 (2017-08-30), pages 7379-7386, XP055815692, US ISSN: 0021-8561, DOI: 10.1021/acs.jafc.7b02352 Retrieved from the Internet: URL: https://pubs.acs.org/doi/pdf/10.1021/acs.jafc.7b02352>a abstract tables 1-4 FELIZIANI ERICA ET AL.: Preharvest treatments with chitosan and other alternatives to conventional fungicides to control postharvest decay of strawberry, CARBOHYDRATE POLYMERS, APPLIED SCIENCE PUBLISHERS, LTD BARKING, GB, vol. 132, 8 June 2015 (2015-06-08), pages 111-117, XP029252784, ISSN: 01448617, DOI: 10.1016/J.CARBPOL.2015.05.078 abstract tables 1-7 ROMANAZZI GIANFRANCO ET AL.: Impact of Alternative Fungicides on Grape Downy Mildew Control and Vine Growth and Development, PLANT DISEASE, vol. 100, no. 4, 1 April 2016 (2016-04-01) , pages 739-748, XP055815686, US ISSN: 0191-2917, DOI: 10.1094/PDIS05-15-0564-RE Retrieved from the Internet: URL: https://apsjoumals.apsnet.org/doi/pdf /10.1094/PDIS05-15-0564-RE> abstract tables 1-5 AZIZ A ET AL.: LAMINARIN ELICITS DEFENSE REPSONSES IN GRAPEVINE AND INDUCES PROTECTION AGAINST BOTRYTIS CINEREA AND PLASMOPARA VITICOLA, MOLECULAR PLANTMICROBE INTERACTIONS, AMERICAN PHYTOPATHOLOGICAL SOCIETY, US, vol. 16, no. 12, 1 January 2003 (2003-01-01), pages 1118-1128, XP009069794, ISSN: 0894-0282 abstract 053304 B1 Defense Responses and Protection Against Pathogens in (57) The present invention relates to a method for increasing yield, controlling diseases, and improving post-harvest quality of crops, plants, or agricultural products using laminarin or a composition containing laminarin. The present invention also relates to combinations of laminarin and additional agrochemically active agents, such as fungicides, for increasing yield, controlling diseases, and improving post-harvest quality of crops, plants, or agricultural products. Field of application of the invention: The present invention relates to a method for increasing yield, controlling diseases, and improving post-harvest quality of crops, plants, or agricultural products. The present invention also relates to a combination for increasing yield, controlling diseases, and improving post-harvest quality of crops, plants, or agricultural products. State of the art: Throughout their life cycle, crops are exposed to pests and environmental changes, which can lead to diseases and low yields. The ever-increasing demand for increased food production necessitates improved disease control and increased yields. Furthermore, once harvested and separated from the parent plant, crops begin to deteriorate. They are susceptible to degradation and rotting due to fungal pests, biochemical, enzymatic, and physical factors. To preserve produce for a longer period of time, as it undergoes multiple stages of post-harvest processing, various measures and methods are employed. This necessitates maintaining the freshness, vigor, and quality of produce for an extended period of time until it reaches the consumer. Therefore, measures must be taken at every stage of the agricultural cycle to ensure the post-harvest quality of agricultural products. Post-harvest processing ensures the safety, quality and quantity of agricultural products. Laminarin is a naturally occurring polysaccharide derived from seaweeds and is a polymer of simple sugars linked by glycosidic bonds. Brown algae can contain up to 35% laminarin by dry weight, depending on the species, season, habitat, and harvesting method. More specifically, it is a class of storage β-glucans consisting of β-(1-3)-linked glucose residues with some β-(1-6)-linkages within the chain and some 6-0 branches in the main chain. D-mannitol occurs in 2-3% of the reducing ends, and such chains are called M-chains, while chains with glucose in the reducing ends are called G-chains. The precise molecular structure of laminarin varies depending on environmental factors such as water temperature, salinity and nutrient content, waves, sea currents , and dive depth. Its chemical formula is C18H32O16 (University of Hertfordshire 2014; ChEBI 2015; Kadam, Tiwari , and O'Donne