2019
DOI: 10.1590/0100-5405/185793
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Métodos de inoculação de Xanthomonas campestris pv. passiflorae em maracujazeiro e biofertilizantes na inibição do crescimento bacteriano in vitro

Abstract: RESUMO A mancha bacteriana do maracujazeiro (Passiflora spp.) causada por Xanthomonas campestris pv. passiflorae é uma das principais doenças que afeta a cultura. Para a obtenção de variedades resistentes à bactéria, vários métodos de inoculação devem ser testados. O objetivo do trabalho foi avaliar diferentes métodos de inoculação de Xanthomonas campestris pv. passiflorae em plantas de maracujá, para a obtenção de genótipos resistentes à bactéria e avaliar o efeito inibitório de biofertilizantes no cresciment… Show more

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Cited by 4 publications
(2 citation statements)
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“…BS was evaluated first due to the evident incidence of the disease, especially on the unstaked system, although the use of chemical control and typical bacteriosis symptoms were in accordance to Ishida & Halfeld-Vieira (2009) and Machado et al (2017). BS was assessed using a grading scale, proposed by Viana et al (2014) and Ferreira & Tebaldi (2019), with modifications, which facilitated the evaluation in the field, as follows: 0, for symptomless plants; 1, for up to 25% of leaf area within the frame covered by bacteriosis spots; 2, for 25-50% of leaf area with bacteriosis spots; 3, for 50-75% of leaf area with bacteriosis spots; and 4, for more than 75% of leaf area with bacteriosis spots, severe leaf drop, and shoot dieback. The area within a given frame was completely covered by the leaves of yellow passion fruit, that is the reason why it was assumed as 100% of leaf area, and the number of leaves was not counted.…”
Section: Methodsmentioning
confidence: 99%
“…BS was evaluated first due to the evident incidence of the disease, especially on the unstaked system, although the use of chemical control and typical bacteriosis symptoms were in accordance to Ishida & Halfeld-Vieira (2009) and Machado et al (2017). BS was assessed using a grading scale, proposed by Viana et al (2014) and Ferreira & Tebaldi (2019), with modifications, which facilitated the evaluation in the field, as follows: 0, for symptomless plants; 1, for up to 25% of leaf area within the frame covered by bacteriosis spots; 2, for 25-50% of leaf area with bacteriosis spots; 3, for 50-75% of leaf area with bacteriosis spots; and 4, for more than 75% of leaf area with bacteriosis spots, severe leaf drop, and shoot dieback. The area within a given frame was completely covered by the leaves of yellow passion fruit, that is the reason why it was assumed as 100% of leaf area, and the number of leaves was not counted.…”
Section: Methodsmentioning
confidence: 99%
“…Several commercial products, classified as biofertilizers or compost additives, have been evaluated for their effectiveness in managing phytopathogens (Miamoto et al, 2017;Soares et al, 2021;Moura et al, 2022;Rodrigues et al, 2016;Ferreira & Tebaldi, 2019). Nonetheless, research in this area remains limited, given that these products are primarily registered for nutrient provision to plants, not for pathogen control.…”
Section: Introductionmentioning
confidence: 99%