Susceptibility of pear cultivars to entomosporiosis

Marchi, Thiago; Ribeiro Oliari, Ires Cristina; Oliveira, Anna Claudia; Maia, Aline José; Piva, Rafael; Vasconcelos Botelho, Renato

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dc.creator	Marchi, Thiago
dc.creator	Ribeiro Oliari, Ires Cristina
dc.creator	Oliveira, Anna Claudia
dc.creator	Maia, Aline José
dc.creator	Piva, Rafael
dc.creator	Vasconcelos Botelho, Renato
dc.date	2018-07-16
dc.date.accessioned	2022-03-21T20:07:37Z
dc.date.available	2022-03-21T20:07:37Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/1074
dc.identifier	10.14295/cs.v9i1.1074
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77761
dc.description	The entomosporiosis is considered a major disease of pear in Brazil, one of the most responsible for premature defoliation in plants. The objective of this study was to characterize the susceptibility of pear tree cultivars Housui, Cascatense, Packam’s Triumph and Rocha for the intensity of leaf spot entomosporiosis. The experiment was conducted at the experimental orchard of the State University of the Midwest (Unicentro), Paraná State, Guarapuava County, Brazil during the 2013/2014 season. The incidence and severity were monitored during 77 days from the beginning of the symptoms in 25 leaves of 8 plants per cultivar. With these data the following variables were calculated: early onset of symptoms (EOS), maximum incidence and severity (Imax and Smax) and the Area Under the Incidence Progress Curve (AUIPC) and Severity (AUSPC). In addition, the data were checked for severity and the best adjustments for the monomolecular, logistic and exponential models were tested. From these results it is clear that all the studied cultivars are susceptible to leaf spot entomosporiosis, however, Housui pear cultivar presented higher endurance while Rocha and Cascatense cultivars presented greater susceptibility to this disease.	en-US
dc.description	The entomosporiosis is considered a major disease of pear in Brazil, one of the most responsible for premature defoliation in plants. The objective of this study was to characterize the susceptibility of pear tree cultivars Housui, Cascatense, Packam’s Triumph and Rocha for the intensity of leaf spot entomosporiosis. The experiment was conducted at the experimental orchard of the State University of the Midwest (Unicentro), Paraná State, Guarapuava County, Brazil during the 2013/2014 season. The incidence and severity were monitored during 77 days from the beginning of the symptoms in 25 leaves of 8 plants per cultivar. With these data the following variables were calculated: early onset of symptoms (EOS), maximum incidence and severity (Imax and Smax) and the Area Under the Incidence Progress Curve (AUIPC) and Severity (AUSPC). In addition, the data were checked for severity and the best adjustments for the monomolecular, logistic and exponential models were tested. From these results it is clear that all the studied cultivars are susceptible to leaf spot entomosporiosis, however, Housui pear cultivar presented higher endurance while Rocha and Cascatense cultivars presented greater susceptibility to this disease.	pt-BR
dc.format	application/pdf
dc.language	eng
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/1074/524
dc.source	Comunicata Scientiae; Vol. 9 No. 1 (2018); 108-112	en-US
dc.source	Comunicata Scientiae; v. 9 n. 1 (2018); 108-112	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.subject	Entomosporium mespili	en-US
dc.subject	epidemiology	en-US
dc.subject	pathossystem	en-US
dc.subject	Pyrus sp	en-US
dc.subject	Entomosporium mespili	pt-BR
dc.subject	epidemiology	pt-BR
dc.subject	pathossystem	pt-BR
dc.subject	Pyrus sp	pt-BR
dc.title	Susceptibility of pear cultivars to entomosporiosis	en-US
dc.title	Susceptibility of pear cultivars to entomosporiosis	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion