2016
DOI: 10.1590/1983-21252016v29n406rc
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Sample Size for Assess the Leaf Blast Severity in Experiments With Irrigated Rice

Abstract: The aim of this study was to determine the sample size needed to assess the severity of leaf blast in rice in experiments with different fungicide treatments. The severity and the area under the disease progress curve data of three chemical disease control treatments carried out in Rio Grande do Sul, were used in the study. Analysis of variance was performed to verify whether the severity of the disease differed between treatments. The spread of disease was was also found to be different between treatments and… Show more

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“…There are several studies in literature that approach sample size for crops such as rice (Sari et al, 2016), corn (Wartha et al, 2016), soybean (Antúnez et al, 2016); fruits such as apple , mombin (Silva et al, 2016), papaya (Schmildt et al, 2017), peach (Pazolini et al, 2016); and vegetables such as carrot (Silva et al, 2009), lettuce (Santos et al, 2010), green bean (Haesbaert et al, 2011) and tomato (Lucio et al, 2012).…”
Section: Introductionmentioning
confidence: 99%
“…There are several studies in literature that approach sample size for crops such as rice (Sari et al, 2016), corn (Wartha et al, 2016), soybean (Antúnez et al, 2016); fruits such as apple , mombin (Silva et al, 2016), papaya (Schmildt et al, 2017), peach (Pazolini et al, 2016); and vegetables such as carrot (Silva et al, 2009), lettuce (Santos et al, 2010), green bean (Haesbaert et al, 2011) and tomato (Lucio et al, 2012).…”
Section: Introductionmentioning
confidence: 99%