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| Costa,Anne Pinheiro; Pires,Márcio de Carvalho; Peixoto,José Ricardo; Blum,Luiz Eduardo Bassay; Faleiro,Fábio Gelape. |
| Abstract This study developed and validated a standard area diagram set (SADs) for severity assessment of bacterial spot (Xanthomonas axonopodis pv. ) in passifloraefruits of yellow passion fruit (Passiflora edulis). The SADs consisted of eight severity levels (1%; 3%; 5%; 10%; 21%; 38%; 65%; and 80%). For its validation, 20 raters, who initially estimated the disease severity without the aid of the SADs, were divided into groups (G1 and G3, inexperienced; G2 and G4, experienced). Subsequently, G1 and G2 performed the second evaluation without the proposed SADs, and G3 and G4 completed the second evaluation using the proposed SADs. The accuracy and precision of the assessments were determined by simple linear regression and by the Lin’s concordance... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora edulis Sims; Xanthomonas axonopodis pv. passiflorae; Phytopathometry; Fruits. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000600401 |
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| Costa,Anne Pinheiro; Peixoto,José Ricardo; Blum,Luiz Eduardo Bassay; Oliveira,Alexandre Bosco de. |
| ABSTRACT: The study aimed to develop and validate a standard area diagram set (SADs) to improve accuracy, precision, and reproducibility in the assessment of scab severity in trilobed leaves of the sour passion fruit. The SADs comprised six severity levels (1%; 3%; 6%; 11%; 21%; and 33%). The SADs increased the accuracy of the estimates by reducing the constant and systematic errors, and the tendency to overestimate the actual severity, limited the number of evaluators who presented this trend, in addition to increasing the bias correction factor. The inexperienced evaluators were the ones that benefited the most from the SADs use. Once the SADs was introduced, 80% and 100% evaluators gave estimates free from constant and systematic errors, respectively.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Passiflora edulis Sims; Cladosporium spp.; Phytopathometry.. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000300151 |
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