2013
DOI: 10.1590/s0034-737x2013000200010
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Eficiência de diferentes moléculas na redução dos sintomas da queima das bainhas em arroz e no crescimento de Rhizoctonia solani in vitro

Abstract: Efficiency of different molecules on the reduction of sheath blight symptoms in rice and on Rhizoctonia solani growth in vitroThis study aimed to test the efficiency of different molecules on the reduction of the relative lesion extension (RLE) of sheath blight in rice. Plants of cultivars BR-Irga 409 and Labelle were grown in nutrient solution and inoculated with Rhizoctonia solani at the maximum tillering stage. At 24 hours before inoculation, sheaths of plants were sprayed with solutions of potassium silica… Show more

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Cited by 7 publications
(6 citation statements)
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References 16 publications
(17 reference statements)
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“…Potassium phosphite has been extensively tested for pathogen control. As reported by Schurt (2013), where the potassium phosphite efficiency in vitro was tested on R. solani and positive results were obtained on the control of mycelial growth of the pathogen.…”
Section: Resultsmentioning
confidence: 62%
“…Potassium phosphite has been extensively tested for pathogen control. As reported by Schurt (2013), where the potassium phosphite efficiency in vitro was tested on R. solani and positive results were obtained on the control of mycelial growth of the pathogen.…”
Section: Resultsmentioning
confidence: 62%
“…Apenas os tratamentos com silicato de potássio e acibenzolar-S-metil permaneceram sem ação fungitóxica sobre o patógeno. Comportamento semelhante ao presente trabalho foi observado por Schurt et al (2013) No que se refere aos indutores de resistência, o tratamento com fosfito de potássio não diferiu estatisticamente dos tratamentos com fungicidas (Tabela 3). Os fosfitos possuem ação indireta no controle de patógenos, estimulando a formação de fitoalexinas, uma substância natural de autodefesa da planta (Dercks & Creasy, 1989), além de restabelecer o crescimento de plantas com sintomas de deficiência de fósforo (Lavott, 1990).…”
Section: Resultsunclassified
“…De acordo com Peruch et al (2007), com a inclusão do fosfito de potássio em um sistema de manejo de doenças, espera-se ter efeito positivo no potencial produtivo das plantas devido ao controle de doenças, bem como, pela influência nutricional. Resultados obtidos por Schurt et al (2013) comprovam a eficiência do carbendazim e do fosfito de potássio em reduzir sintomas da requeima das bainhas em arroz.…”
Section: Resultsunclassified
“…According to Sultana and Ghaffar (2013), carbendazim completely inhibits colony growth of F. oxysporum. When tested on mycelial growth of Rhizoctonia solani, carbendazim reduced it by 86% in vitro (Schurt et al, 2013). In addition to in vitro results, chitosan (El-Ghaouth et al, 1994), silicon (Epstein, 1999) and phosphites (Ouimette and Coffey, 1989) due to resistance induction characteristics are being field tested by us in Black pepper plants, to evaluate the behavior of such plants inoculated with F. solani.…”
Section: Discussionmentioning
confidence: 99%