2013
DOI: 10.1590/s1982-56762013005000023
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Abstract: There is a lack of information about the level of resistance of cotton genotypes to a wider range of Ramularia areola isolates occurring across the cotton growing areas of Brazil. For this purpose, firstly it is necessary to know the existence or not of genotypic and phenotypic variability among the R. areola isolates from different geographical origins. The objective of the present investigation was to verify the existence of phenotypic variability among 23 R. areola isolates collected from six cotton growing… Show more

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Cited by 8 publications
(15 citation statements)
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“…Fungal Isolates: Out of the 23 isolates of R. areola studied earlier for phenotypic variation [3], 16 isolates were used in this study for phenotypic and genotypic variation since other isolates had lost their pathogenicity due to constant culturing in artificial media. These isolates are considered representatives of the pathogen occurring across the cotton growing areas of Brazil and their origin is presented in Table 1.…”
Section: Methodsmentioning
confidence: 99%
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“…Fungal Isolates: Out of the 23 isolates of R. areola studied earlier for phenotypic variation [3], 16 isolates were used in this study for phenotypic and genotypic variation since other isolates had lost their pathogenicity due to constant culturing in artificial media. These isolates are considered representatives of the pathogen occurring across the cotton growing areas of Brazil and their origin is presented in Table 1.…”
Section: Methodsmentioning
confidence: 99%
“…Leaf blight of cotton caused by Ramularia areola is economically important especially for Brazil, causing heavy yield losses [1][2][3][4]. In Brazil, some years ago it was considered as a secondary and late season disease, however, in recent years the disease is of principal concern especially because now it attacks cotton during the entire crop cycle.…”
Section: Introductionmentioning
confidence: 99%
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“…The different severity stages found in the cultivars are related to the different levels of resistance of each genotype to the genetic variation of the R. areola fungus (Cia et al 2011, Fuzatto et al 2011, Girotto et al 2013, Pezenti et al 2013 and to the phenotypic instability of the cultivars (Cia et al 2015). According to Johnson et al (2013) and Ascari et al (2016), the climate also affects the plant-pathogen interaction, as confirmed by the weather conditions recorded in the present study (Figure 1).…”
Section: Thirds Of the Plantmentioning
confidence: 99%