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    Control of seedling damping off caused by Rhizoctonia solani and Sclerotium rolfsii using onion broths

    Rivera MC1, ER Wright1, MC Fabrizio2, G Freixá1, R Cabalini1, SE Lopez3

    Phyton-International Journal of Experimental Botany, Vol.82, pp. 227-234, 2013, DOI:10.32604/phyton.2013.82.227

    Abstract Damping off is a frequent disease that kills seedlings. Cultural and biological controls are the only tools in organic crops to manage this disease, and only empirical information is available on the efficiency of plant preparations. This work evaluates the effects of fermented onion decoctions on the growth of Rhizoctonia solani and Sclerotium rolfsii and disease incidence. Broth (B) and sterilized broth (SB) were respectively obtained by boiling chopped yellow onions in water, and incubating for 14 days at room temperature, with or without subsequent sterilization. The pathogens were grown on potato dextrose agar supplemented with B and SB, diluted… More >

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