2014
DOI: 10.4025/actasciagron.v36i3.17656
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<b>Effects of wounding, humidity, temperature, and inoculum concentrations on the severity of corky dry rot caused by <i>Fusarium semitectum</i> in melon fruits

Abstract: Corky dry rot, caused by Fusarium semitectum, is the main postharvest disease of melons in Brazil. This study investigated the effects of wounding, humidity, temperature, and inoculum concentration on the severity of corky dry rot under controlled conditions. Cantaloupe and honeydew melon types were inoculated by spraying conidial suspensions of three F. semitectum isolates. In all experiments, the tested F. semitectum isolates did not differ in relation to disease severity, but, the cantaloupe melon showed hi… Show more

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Cited by 18 publications
(9 citation statements)
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“…The evaluation of disease control against F. pallidoroseum was carried out by dose screening, as follows: 0 (non-treated with PL), 6, 9, and 12 KJ m -2 , according to the standard limits proposed [20]. After PL-screening, the inoculated and PLtreated melons were incubated in a box protected from light for 48 h at 28 ± 1˚C with a relative humidity of 92% to ensure optimal conditions for mycelium growth [21]. The melons were then stored at 25 ± 1˚C for 21 days.…”
Section: Disease Control By Pl Treatmentmentioning
confidence: 99%
“…The evaluation of disease control against F. pallidoroseum was carried out by dose screening, as follows: 0 (non-treated with PL), 6, 9, and 12 KJ m -2 , according to the standard limits proposed [20]. After PL-screening, the inoculated and PLtreated melons were incubated in a box protected from light for 48 h at 28 ± 1˚C with a relative humidity of 92% to ensure optimal conditions for mycelium growth [21]. The melons were then stored at 25 ± 1˚C for 21 days.…”
Section: Disease Control By Pl Treatmentmentioning
confidence: 99%
“…The pathogen commonly associated with melon fruit rot was identified through morphological markers as Fusarium semitectum (synonyms: F. incarnatum , F. pallidoroseum ; Oliveira et al ., 2014). The fungus F .…”
Section: Introductionmentioning
confidence: 99%
“…Resultados semelhantes foram observados por Uchôa et al (2012), ao constatarem que não houve incidência de sigatoka-negra em bananeira submetidas a 0 h de molhamento. Oliveira et al (2014a), observaram presença de lesões ocasionadas por F. semitectum em melão, com e sem molhamento, porém, sobre umidade de 48 h o tamanho das lesões foi mais expressivo.…”
Section: Resultsunclassified
“…Além disso, é um dos fatores que mais favorece o incremento de doenças pós-colheita, em função da quantidade de gotículas que se acumulam na superfície dos frutos, criando microclima favorável para o surgimento da doença (Oliveira et al, 2014a). Portanto, algumas medidas podem ser adotadas para reduzir os riscos de doenças pós-colheita, tais como: evitar umidade elevada sob a superfície das frutas que normalmente é ocasionada por irrigações prolongadas, realizar desbaste de restos florais e frutas sintomáticas visando reduzir o inóculo de C. musae na área, implantação de cultivares resistentes, boas práticas de manejo cultural, lavagem e embalagem cuidadosa dos frutos visando evitar ferimentos (Cordeiro et al, 2005).…”
Section: Resultsunclassified