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Development and validation of a standard area diagram set to assess powdery mildew severity on watermelon leaves. Author(s): SOUZA, F. de F. The development and validation of a standard area diagram set (SADs) was proposed in this study to assess the severity of powdery mildew (Podosphaera xanthii) in watermelon (Citrullus lanatus) leaves.... ... Repository: BDPA Publication year: 2020
Ocorrência do vírus do mosaico severo (Cowpea severe mosaic virus - CPSMV) no feijão-caupi (Vigna unguiculata (L.) Walp.) em Rondônia. Author(s): FERNANDES, C. de F.; VIEIRA JUNIOR, J. R.; MARCOLAN, A. L.; ROSA NETO, C.; DIOCLECIANO, J. M.; FERRO, G. de O.; SILVA, D. S. G. da O objetivo deste trabalho foi relatar a ocorrência do vírus do mosaico severo, causada por cowpea severe mosaic vírus (CPSMV) em feijão caupi no Estado de Rondônia. Repository: BDPA Publication year: 2010
Evaluation efficiency of severity of angular leaf spot in common bean based on diseased and healthy leaf area. Author(s): PARRELLA, R. A. da C. This study compared severity of angular leaf spot in common bean lines, based on the healthy and diseased leaf area, and the graded scale. We used 12 common bean lines in the dry and rainy seasons. Tw... ... Repository: BDPA Publication year: 2013
Effect of the begomovirus transmission efficiency for the predominance of tomato severe rugose virus (TOSRV) in tomatoes crops. Author(s): INOUE-NAGATA, A. K. Tomato severe rugose virus (ToSRV) and Tomato golden vein virus (TGVV) are bipartite begomoviruses, transmitted by whiteflies (Bemisia tabaci biotypeB), frequently found infecting tomato (Solanum lyco... ... Repository: BDPA Publication year: 2011
Silicon reduces brown spot severity and grain discoloration on several rice genotypes. Author(s): PRABHU, A. S.; BARBOSA FILHO, M. P.; BERNI, R. F. This study aimed to investigate the effect of silicon (Si) on the reduction of brown spot severity (BSS), caused by Bipolaris oryzae, and grain discoloration in several rice genotypes. An experiment w... ... Repository: BDPA Publication year: 2012
From visual estimates to fully automated sensor-based measurements of plant disease severity: status and challenges for improving accuracy. Author(s): BARBEDO, J. G. A. Abstract. The severity of plant diseases, traditionally the proportion of the plant tissue exhibiting symptoms, is a key quantitative variable to know for many diseases and is prone to error. Good qua... ... Repository: BDPA Publication year: 2020
Diagrammatic scale for assessment of soybean rust severity. A diagrammatic scale to assess soybean (Glycine max) rust severity, caused by the fungus Phakopsora pachyrhizi, was developed in this study. Leaflets showing different severity levels were collected f... ... Repository: BDPA Publication year: 2006
Elaboration and validation of a diagrammatic scale to assess downy mildew severity in grapevine. Author(s): ANGELOTTI, F. The downy mildew, caused by Plasmopora viticola, is one of the most important grapevine (Vitis vinifera) diseases in Southern Brazil, causing defoliation and economic losses. The evaluation of disease... ... Repository: BDPA Publication year: 2014
Plant growth and leaf-spot severity on eucalypt at different CO2 concentrations in the air. Author(s): GHINI, R. The objective of this work was to evaluate the effects of increased air‑CO2 concentration on plant growth and on leaf‑spot caused by Cylindrocladium candelabrum in Eucalyptus urophylla. Se... ... Repository: BDPA Publication year: 2014
Severity of melon powdery mildew as a function of increasing temperature and carbon dioxide concentration. Author(s): ANGELOTTI, F.; RIBEIRO JUNIOR, P. M. The increase of CO2 and temperature may affect the progress of plant diseases. In this sense, the objective of this study was to evaluate the impact of increased carbon dioxide concentrations and temp... ... Repository: BDPA Publication year: 2019

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