Development and validation of a standard area diagram set for assessment of peach rust

Dolinski, Marcos Antonio; Duarte, Henrique da Silva Silveira; Silva, Jéssica Bizarro da; Mio, Louise Larissa May De

doi:10.1007/s10658-016-1138-9

Cited by 33 publications

(16 citation statements)

References 23 publications

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“…The LCCC (ρ c ) combines elements of accuracy and precision in order to determine the agreement between estimated and actual values (Lin, 1989) and has been used with great success in recent studies of SADs validation (Schwanck & Del Ponte, 2014, Braido et al, 2015, Dolinski et al, 2017, Sachet et al, 2017. The LCCC confirmed the previously presented results, demonstrating that the accuracy and precision of the raters were improved when aided by the SADs in comparison to the non-aided evaluations (Table 4).…”

Section: /9supporting

confidence: 67%

Standard area diagram set for quantification of septoriosis in fruit of sour passion fruit

Costa¹,

Peixoto²,

Blum³

et al. 2019

Agraria

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A standard area diagram set (SADs) for severity evaluation of septoriosis (Septoria passiflorae) in fruit of sour passion fruit (Passiflora edulis Sims) was developed and validated in this study. The SADs presented eight severity levels (0.3; 0.5; 1; 2; 4; 10; 18; and 30%). For its validation, 20 raters were divided into groups (G1 and G3, inexperienced; G2 and G4, experienced) who initially estimated the disease severity without the aid of the SADs. Subsequently, G1 and G2 performed the second evaluation without the SADs, and G3 and G4 completed the second evaluation with the proposed SADs for each disease. The accuracy and precision of the evaluations were determined by simple linear regression and by Lin's concordance correlation coefficient. The proposed SADs allowed accurate and precise quantification of septoriosis severity, increasing the agreement between estimated and actual values. The increase in accuracy and precision in the non-aided groups, when present, was less pronounced than those increments observed in the SADs-aided groups. Lin's concordance correlation coefficient confirmed the increases in accuracy and precision detected by the linear regression analysis.Escala diagramática para a quantificação da severidade da septoriose em frutos do maracujazeiro azedo RESUMO: Uma escala diagramática para a avaliação da severidade da septoriose (Septoria passiflorae) em frutos do maracujazeiro azedo (Passiflora edulis Sims) foi desenvolvida e validada neste estudo. A escala diagramática apresentou oito níveis de severidade (0,3; 0,5; 1; 2; 4; 10; 18; e 30%). Para a sua validação, os 20 avaliadores foram divididos em grupos (G1 e G3, sem experiência; G2 e G4, com experiência), que inicialmente estimaram a severidade da doença sem auxílio da escala. Posteriormente, G1 e G2 fizeram outra avaliação sem escala, e G3 e G4 realizaram a avaliação com a escala proposta. A acurácia e a precisão das estimativas foram determinadas por regressão linear simples e pelo coeficiente de correlação de concordância de Lin. A escala diagramática proposta permitiu quantificar a severidade da septoriose de forma acurada e precisa, aumentando a concordância entre os valores estimados e os reais. O aumento da acurácia e precisão nos grupos que realizaram dupla avaliação sem escala, quando ocorreu, foi mais discreto que os incrementos observados nos grupos que utilizaram a escala. A análise de concordância de Lin confirmou os incrementos da acurácia e precisão detectados pela análise de regressão linear. Palavras-chave: frutos; Passiflora edulis Sims; fitopatometria; Septoria passifloraeStandard area diagram set for quantification of septoriosis in fruit of sour passion fruit Rev. Bras.

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Section: /9supporting

confidence: 67%

Standard area diagram set for quantification of septoriosis in fruit of sour passion fruit

Costa¹,

Peixoto²,

Blum³

et al. 2019

Agraria

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“…One method used is the standard area diagram set (SADs), which are illustrated representations of a set of leaves with symptoms of different severity levels (Dolinski, Duarte, Silva, & May De Mio, 2017). To evaluate efficacy of the control measures and for research on other aspects of the disease, we need accurate, precise and reliable methods to quantify disease severity.…”

Section: Eucalyptus Rust (Myrtle Rust) Is Caused By the Biotrophic Fumentioning

confidence: 99%

“…Before performing both evaluations, raters were told to consider only the symptoms of yellow pustules to base their visual estimate on proportion of total leaf area. The accuracy, precision and inter-rater reliability of the estimates with and without the SADs were calculated as previously described (Dolinski et al, 2017), in R (R Core Team, 2018).…”

Section: Materials S and Me Thodsmentioning

confidence: 99%

“…The accuracy, precision and inter-rater reliability of the estimates with and without the SADs were calculated as previously described (Dolinski et al, 2017), in R (R Core Team, 2018). Validation of the SADs was performed by 16 raters with no previous experience in plant disease severity assessments.…”

Section: Introductionmentioning

confidence: 99%

“…To evaluate efficacy of the control measures and for research on other aspects of the disease, we need accurate, precise and reliable methods to quantify disease severity. One method used is the standard area diagram set (SADs), which are illustrated representations of a set of leaves with symptoms of different severity levels (Dolinski, Duarte, Silva, & May De Mio, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Standard area diagram set to assess rust severity on eucalyptus leaves

et al. 2019

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This study aimed to develop and validate a standard area diagram set (SADs) to help assess rust severity caused by Austropuccinia psidii on eucalyptus leaves. The SADs has eight colour images of leaves with severity values ranging from 0.97% to 37.3%. The SADs were validated by 16 raters, who assessed the same set of 50 images twice: the first without the SADs and the second using it as an aid. Accuracy and precision of the estimates were determined based on Lin's concordance correlation coefficient, and the inter‐rater reliability was measured using the coefficient of determination (R2) and intraclass correlation. The estimates of severity of eucalyptus rust were more accurate, precise and reliable using SADs. These results demonstrate the value of SADs for several activities, including epidemiological studies, treatments comparison, disease monitoring, decision‐making in eucalyptus rust management measures, and in breeding programs.

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A standard area diagram set for severity assessment of botrytis leaf blight of onion

et al. 2018

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Development and validation of a standard area diagram set for assessment of peach rust

Cited by 33 publications

References 23 publications

Standard area diagram set for quantification of septoriosis in fruit of sour passion fruit

Standard area diagram set for quantification of septoriosis in fruit of sour passion fruit

Standard area diagram set to assess rust severity on eucalyptus leaves

A standard area diagram set for severity assessment of botrytis leaf blight of onion

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