a outras frutas nativas do Nordeste, a mangaba é utilizada pela agricultura destacando-se no bioma Cerrado pelo aproveitamento alimentar. Com este trabalho objetivou-se avaliar a caracterização física e físico-química de frutos de mangabeira da região Oeste da Bahia. Foram amostrados 300 frutos de dez matrizes, coletados em uma área dos municípios de Angical, Barreiras e São Desidério e conduzidos ao Laboratório de Sementes da UNEB. Foram considerados, para as avaliações físicas, os diâmetros longitudinal e transversal do fruto; o peso do fruto; peso total de semente por fruto; peso de polpa e casca; rendimento de polpa e casca; já para as avaliações físico-químicas a polpa dos frutos foi submetida às determinações do pH; do teor de sólidos solúveis (SS); acidez titulável (AT) e o ratio. Para as variáveis diâmetro longitudinal e transversal, peso de polpa e casca, peso de sementes, peso de fruto e rendimento de polpa e casca as médias foram, respectivamente, 32,34 e 31,87 mm, 14,77, 2,40 e 17,17 g e 85,93% porém no que se refere ao pH, SS, AT e ratio (SS/AT), as médias foram 3,93, 17,04° Brix, 0,98 e 18,62 cujos resultados indicaram que há diferença estatística significativa entre todas as variáveis avaliadas.Physical and physicochemical characterization of 'mangabeira' fruits (Hancornia speciosa Gomes) in Western Bahia A B S T R A C TThe 'mangaba' is widely used by agribusiness, as compared to other native fruits of Northeast, especially in the Cerrado biome for food utilization. This study aimed to evaluate the physical and physicochemical characterization of 'mangabeira' fruits in the western region of Bahia. Three hundred fruits were sampled from ten matrices, which were collected in an area of the municipalities of Angical, Barreiras and St Desiderio and conducted to the Seed Laboratory of UNEB. For the physical assessments, longitudinal and transversal diameters of the fruit, fruit weight, total seed weight per fruit, weight of the pulp and peel, and yield of pulp and peel were considered. As for the physicochemical evaluations, the fruit pulp was subjected to the determinations of pH, soluble solids content, titratable acidity and ratio. For the variables, longitudinal and transversal diameters, the weight of pulp and peel, seed weight, fruit weight and yield of pulp and peel, the means were, respectively, 32.34 and 31.87 mm, 14.77, 2.40 and 17.17 g and 85.93%. With regard to pH, SS, AT and ratio (SS/AT), the means were 3.93, 17.04° Brix, 0.98 and 18.62. The results indicated that there are statistically significant differences between all variables evaluated.Caracterização física e físico-química de frutos de mangabeira (Hancornia speciosa Gomes) no oeste da Bahia

A B S T R A C TIn Cerrado, there are numerous native fruit species with potential for use in traditional systems of agricultural production. In this context, the 'pequi' stands out in this biome by its great economic value in Central Brazil. Therefore, this work aimed to study the physical and physicochemical characterization of Pequi fruits in the Western Region of Bahia. Three hundred fruits were sampled from ten matrices which were collected in an area of the municipality of Angical, BA and conducted to the Seed Laboratory of the State University of Bahia -UNEB. For physical evaluations, the fruit weight; longitudinal and transversal diameters of the fruit; total weight of seeds per fruit; pulp weight, peel weight and pulp yield were considered. As for the physico-chemical evaluations, the fruit pulp was subjected to the determinations of pH, the soluble solids (SS), titratable acidity (TA) and the relation between soluble solids and titratable acidity. For the variables, longitudinal and transversal diameters, the pulp weight, peel weight, seed weight, fruit weight and pulp yield, the mean were, respectively, 63. 49 and 61.29 mm, 12.51, 101.91, 27.48, 114.41 g and 11.17%. However, with regard to pH, SS, AT and SS/AT, means were 5.32, 11.95 °Brix, 1.76 and 11.53. The results indicated that there are statistically significant differences between all the physical and physico-chemical variables evaluated.Caracterização físico-química e biometria de frutos de pequizeiro no Oeste da Bahia R E S U M ONo Cerrado existem inúmeras espécies frutíferas nativas que apresentam potencial para a utilização em sistemas tradicionais de produção agrícola. Neste contexto o pequizeiro se destaca neste bioma pelo grande valor econômico na região central do Brasil. Objetivou-se, portanto, com este trabalho, estudar a caracterização física e físico-química de frutos de pequi da região Oeste da Bahia. Foram amostrados 300 frutos de dez matrizes, os quais foram coletados em uma área do município de Angical, BA, e conduzidos ao Laboratório de Sementes da Universidade do Estado da Bahia -UNEB. Foram considerados, para as avaliações físicas, o peso do fruto; diâmetros longitudinal e transversal do fruto; peso total de semente por fruto; peso de polpa, peso de casca e o rendimento de polpa; já para as avaliações físico-químicas a polpa dos frutos foi submetida às determinações do potencial hidrogeniônico (pH); do teor de sólidos solúveis (SS); acidez titulável (AT) e a relação sólidos solúveis e acidez titulável. Para as variáveis diâmetro longitudinal e transversal, peso de polpa, peso de casca, peso de sementes, peso de fruto e rendimento de polpa as médias foram, respectivamente, 63,49 e 61,29 mm, 12,51, 101,91, 27,48, 114,41 g e 11,17% porém no que se refere aos pH, SS, AT e SS/AT, as médias foram 5,32, 11,95 °Brix, 1,76 e 11,53 cujos resultados indicaram haver diferença estatística significativa entre todas as variáveis físicas e físico-químicas avaliadas.

Abstract:The host status of eighteen progenies and two cultivars (FB 200 Yellow Master and FB 300 Araguari)

No abstract

No abstract

Scab caused by the Cladosporium cladosporioides complex is one of the most important diseases affecting passion fruit yield and fruit quality. Standard area diagrams are useful tools to improve the accuracy and reliability of the estimates of disease severity in many pathosystems. The interpretation of the accuracy of the resulting disease data may be the basis for providing better disease management. This study aimed to develop and validate standard area diagrams (SADs) to quantify scab severity of entire‐margined leaves of sour passion fruit plants. The SADs are composed of ten images of scab severity values (0.4%, 3.5%, 5.4%, 8.0%, 11.1%, 16.2%, 26.1%, 38.2%, 47.9% and 58.9%). Twenty raters (ten experienced and ten inexperienced ones) evaluated the SADs. The raters estimated the same set of fifty images twice. In the examination, the SADs were used, while in the second examination, they were not used. Accuracy was significantly improved by using the SADs. The coefficients of bias (Cb) were 0.96 and 0.98 for the experienced raters and 0.75 and 0.98 for the inexperienced raters without and with SADs, respectively. The correlation coefficient (r) values were 0.95 and 0.97 for the experienced raters and 0.89 and 0.97 for the inexperienced raters without and with the use of the SADs, respectively. Lin's concordance correlation coefficient (ρc) values were 0.91 and 0.95 for the experienced raters and 0.66 and 0.95 for the inexperienced raters without and with the use of the SADs, respectively. Moreover, the coefficient of determination (R2) significantly improved when the SADs were used. The SADs proposed in this study, if properly used, may improve both the accuracy and reliability during the evaluation of scab severity of entire‐margined leaves of sour passion fruit plants.

No abstract

Screening passion fruit genotypes to target resistance to scab and bacterial blight may play an important role in reducing the application of chemical products and decreasing losses caused by these diseases. It is likely that resistant genotypes can be found in ongoing breeding programs targeting production traits. Thus, the objective of this work was to evaluate the host status of eighteen passion fruit genotypes from the Breeding Program of the Universidade Federal de Viçosa and two cultivars (FB 200 Yellow Master and FB 300 Araguari) of yellow passion fruit to scab (Cladosporium herbarum) and bacterial blight (Xanthomonas axonopodis pv. passiflorae). The fungus and the bacterium were artificially inoculated on wounded leaves at concentrations of 1 x 10 6 spores mL -1 and 1 x 10 8 cfu mL -1 . Scab incidence and severity were assessed at 7, 14, 21, and 31 days after inoculation (DAI); whereas bacterial blight evaluations were performed at 10, 20, 28, and 44 DAI. The genotypes CRP 01-12 to CRP 16-12 and CRP 19-12 are moderately resistant to scab. All genotypes are highly susceptible to bacterial blight. Key words: Bacterial spot. Cladosporiosis. Passiflora edulis. Resistance. ResumoA seleção de genótipos de maracujazeiro visando resistência à verrugose e bacteriose pode ter importante papel na redução da aplicação de produtos químicos e perdas causadas por essas doenças. É provável que genótipos resistentes possam ser encontrados em programas de melhoramento visando seleção de caracteres relacionados à produção. Assim, o objetivo deste trabalho foi avaliar a hospedabilidade de dezoito genótipos de maracujazeiro-azedo provenientes do Programa de Melhoramento Genético da Universidade Federal de Viçosa (CRP 01-12 a CRP 16-12, CRP 19-12 e CRP 20-12) e dois cultivares comerciais (FB 200 Yellow Master e FB 300 Araguari) à verrugose (causada por Cladosporium herbarum) e bacteriose (Xanthomonas axonopodis pv. passiflorae). O fungo e a bactéria foram inoculados em folhas com ferimentos nas concentrações de 1 x 10 6 esporos mL -1 e 1 x 10 8 ufc mL -1 . A incidência e a severidade de verrugose foram avaliadas aos 7, 14, 21 e 31 dias após a inoculação (DAI); enquanto que as avaliações da bacteriose foram aos 10, 20, 28 e 44 DAI. Os genótipos CRP 01-12 a CRP 16-12 e CRP 19-12 são moderamente resistentes à verrugose. Todos os genótipos são altamente suscetíveis à bacteriose. Palavras-chave: Mancha bacteriana. Cladosporiose. Passiflora edulis. Resistência.