, MÁRCIO CARVALHO PIRES 5 , NILTON TADEU VILELA JUNQUEIRA 6 , JULIANA GALVARROS BUENO LOBO RIBEIRO 7 RESUMO -A qualidade de frutos de maracujá para o consumo in natura é um fator de extrema importância na comercialização para o mercado europeu. Diante disso, um experimento foi realizado com o objetivo de avaliar as características físico-químicas de frutos de maracujazeiro nas condições de cerrado. Utilizou-se um delineamento de blocos casualizados, com nove tratamentos e quatro repetições. Os tratamentos constaram de sete progênies de maracujá-roxo provenientes da Austrália e duas progênies de maracujá-azedo. As progênies de maracujazeiro-roxo utilizadas foram: 'Lacey', '14', '25', 'Supersweet 9', '37(1)', '37(2)' e '96A' e os de maracujazeiro-azedo foram 'Marília Seleção Cerrado' e 'Híbrido EC-2-0'. Com base nos resultados, pode-se concluir que o genótipo '37(2)' apresentou o maior teor de sólidos solúveis totais, a progênie 'Lacey' apresentou a menor espessura de casca e formato mais arredondado dos frutos, a progênie 'Marília Seleção Cerrado' obteve o maior peso de polpa e o maior número de sementes por fruto. Entre as progênies de maracujá-roxo, o maior peso da polpa foi da progênie 'S9', que também apresentou maior pH e menor acidez titulável. A cor da polpa predominante foi amarela. A correlação entre peso da polpa e acidez titulável mostrou-se positivamente forte, e a correlação entre pH e acidez titulável foi negativamente forte. Termos para indexação: Passiflora edulis Sims, características físico-químicas, exportação. PHYSICO-CHEMICAL CHARACTERISTICS OF PURPLE AND ACID-PASSION-FRUIT GENOTYPES GROWN IN BRASÍLIAABSTRACT -Fruit quality for fresh passion fruit is a key factor for commercialization in European market. Aiming to evaluate the physico-chemical characteristics of passion fruits grown under Savanna condition an experiment was carried out using a randomized design with nine treatments and four replications. The treatments consisted of nine cultivars and selections (seven purple-and two acid-passion-fruit). The purplegenotypes ('Lacey', '14', '25', 'Supersweet 9', '37(1)', '37(2)' and '96A' ) are from Australia and the yellowones ('Marília Seleção Cerrado' and 'Híbrido EC-2-0') from Brasília, Brazil. The selection '32(2)' showed the highest content of TSS; 'Lacey' the thinnest peel and a more round fruit shape; and 'Marília Seleção Cerrado' the largest number of seeds per fruit and the heaviest pulp weight. Among the purple-genotypes selection, 'S9' showed the heaviest pulp weight, the highest pH and the lowest TA. The Yellow pulp color was predominant. Positive correlation for pulp weight and TA and inversely for pH and TA were observed.

Purpose Banana is an important tropical fruit with high demand in the market. The ripe fruits are less resistant to transport making logistics difficult. Moreover, as a climacteric fruit, it has a short post-harvest shelf life. Edible coatings/films, including active substances, have been used as an alternative for preserving fruits and vegetables during post-harvest period. The purpose of this study was to evaluate the incorporating clove essential oil on the properties of cassava starch films and their effect on the post-harvest quality of different banana varieties. Design/methodology/approach Cassava starch films incorporating clove essential oil were developed and the films were characterized with respect to moisture, thickness, solubility, water vapor permeability (WVP), biodegradability, color and in vitro antifungal activity. Cultivars such as Prata-Anã, Grand Nine, BRS Tropical and BRS Conquista were coated with cassava starch, cassava starch film with clove essential oil (CSEO) and polyvinyl polychloride (PVC). The quality of fruits was monitored during eight storage days using mass loss, total soluble solids content (TSS) and titratable acidity (TTA). Findings Incorporation of clove essential oil significantly increased film thickness, reduced moisture content, solubility and WVP (p < 0.05) and did not affect the biodegradability and color of the films. The essential oil incorporated films showed antifungal activity against the fungi Colletotrichum gloeosporioides and Colletotrichum musae, but not against the yeast Saccharomyces bourladii. CSEO and PVC coating were more efficient in reducing the mass loss, SS content and TTA of the coated fruits in all varieties studied. Both CSEO and PVC coatings improve the quality attributes such as TSS and TTA and reduced mass loss, of the banana varieties such as Prata-Anã, Grand Nine, BRS Tropical and BRS Conquista during storage. Originality/value The active film with essential oil showed antifungal activity and essential oil can be incorporated into other food systems. This study approaches a new possibility of film coating with essential oil for a banana that showed minimum weight loss and satisfactory quality and increased shelf life. This film coating demonstrates biodegradable characteristics that could be eco-friendly and sustainable to consumers.

This study developed and validated a standard area diagram set (SADs) for severity assessment of bacterial spot (Xanthomonas axonopodis pv. ) in passifloraefruits of yellow passion fruit (Passiflora edulis). The SADs consisted of eight severity levels (1%; 3%; 5%; 10%; 21%; 38%; 65%; and 80%). For its validation, 20 raters, who initially estimated the disease severity without the aid of the SADs, were divided into groups (G1 and G3, inexperienced; G2 and G4, experienced). Subsequently, G1 and G2 performed the second evaluation without the proposed SADs, and G3 and G4 completed the second evaluation using the proposed SADs. The accuracy and precision of the assessments were determined by simple linear regression and by the Lin’s concordance correlation coefficient. The increase in the accuracy was confirmed by the reduction in the constant and systematic errors, indicating that the estimated severities were close to the actual values when the SADs was used. Inexperienced raters benefited the most from the use of the SADs, and 60% and 100% of them presented constant and systematic error-free estimates, respectively. Precision increased with the increase in the coefficient of determination, the reduction in absolute errors, and the increase in the reproducibility of the estimates between pairs of raters.

This research evaluated the monthly variation of plant mineral nutrition in six species of fruit trees over a year. Leaf samples were taken from the fruit trees and nutritional Cruz, A.F.; et al.

A banana (Musa spp.) representa uma das principais frutas brasileiras com relação a produção e comercialização. Entretanto, as perdas pós-colheita têm sido bastante significativas. Assim, o presente trabalho teve por objetivo avaliar a qualidade de duas variedades de bananas armazenadas em sistema de atmosfera modificada com a utilização de absorvedor de etileno impregnado com solução de KMnO4, com e sem refrigeração. O delineamento experimental adotado foi em blocos casualizados em arranjo fatorial 2×2×2 com três repetições e seis períodos de armazenamento. Avaliou-se a qualidade dos frutos quanto à perda de massa fresca, teor de sólidos solúveis (SS), acidez titulável (AT) e relação SS/AT. Os resultados indicaram que a combinação do uso da embalagem com o bloco de gesso com KMnO4 resultou no retardamento do processo de maturação dos frutos. Foi observado que os frutos submetidos a embalagem com a atmosfera modificada e com absorvedores, independente das condições de temperatura, não apresentaram perdas de massa significativa, indicando que a utilização de embalagem plástica de polipropileno é uma solução recomendada para evitar alterações no pós-colheita.

RESUMO -o maracujá-roxo (Passiflora edulis), apesar de ser desconhecido no Brasil, pode tornar-se numa fonte de renda alternativa para o agricultor, devido à boa remuneração e aceitação da fruta in natura no mercado europeu. com o objetivo de avaliar a produção de mudas clonais de maracujá-roxo provenientes da austrália, foi realizado um experimento no Setor de Fruticultura da universidade de Brasília entre os meses de maio de 2005 e fevereiro de 2006. o delineamento experimental utilizado foi o de blocos casualizados, com 3 repetições, em arranjo fatorial 7 x 2 x 3, sendo sete porta-enxertos, duas variedades-copa e três épocas de avaliação. a parcela foi formada por 3 plantas úteis. utilizaram-se como porta-enxertos (Pe) as espécies P. serrato digitata, P. nitida, P. coccinea, P. quadrangularis, P. edulis e P. edulis f. flavicarpa híbrido 'ec-2-0' e o híbrido P. coccinea x P. setacea, e como copa (cP), as variedades '96a' e '25' de maracujazeiro-roxo. as estacas enraizadas foram transferidas para sacolas plásticas e mantidas sob nebulização intermitente. a enxertia foi efetuada 30 dias após. as avaliações do índice de pegamento foram efetuadas aos 31 e 61 dias após a enxertia (dae). as combinações cP/Pe (entre "25" e "96 a" x P. nitida), seguidas das combinações ("25" e "96 a" x P. edulis f. flavicarpa híbrido 'ec-2-0'), com 100%, 90%, 90% e 80%, respectivamente, obtiveram alto índice de pegamento aos 61 dae. a produção de mudas de maracujazeiro-roxo enxertadas nas espécies de maracujazeiro silvestres e comerciais P. nitida, P. quadrangularis, P. edulis f. flavicarpa híbrido 'ec-2-0' e P. edulis é viável do ponto de vista técnico, pois não ocorreram problemas de incompatibilidade, e os enxertos apresentaram alta taxa de pegamento. Termos para indexação: P. edulis f. flavicarpa, produção de mudas, espécies silvestres e comerciais, propagação. GRAFTING OF AUSTRALIAN PURPLE PASSION FRUIT PROGENIES IN DIFFERENT NATIVE SPECIESABSTRACT -Purple passion fruit (Passiflora edulis), even though is unknown in Brazil, can be an alternative income for the farmers due to good price and acceptance by the european market. aiming to evaluate the production of clonal nursery plants of australian purple passion fruit it was realized at the Fruit Section of university of Brasília an experiment from May 2005 to February 2006. Randomized blocks were used with 3 replications in a factorial arrangement 7 x 2 x 3 with 7 rootstock, 2 varieties and 3 periods of evaluation, where each parcel had 3 plants. P. edulis f. flavicarpa, P. serrato digitata, P. nitida, P. coccinea, (P. coccinea x P. setacea), P. quadrangularis, P. edulis e P. edulis f. flavicarpa 'ec-2-0' were used as rootstock and as a scion the purple passion fruit '96a' and '25' from australia. the rooted rootstock was transferred to plastic bags and kept under misting condition and grafted 30 days later. the rooting success rate was evaluated 31 and 61 days after grafting (dag). the scion/rootstock combination ("25" and "96 a" x P. nítida) followed by ("25" and "96 a" x P. edu...

Scab (Cladosporium spp.) significantly comprises the commercial acceptance of sour passion fruit (Passiflora edulis) because of the deformed and atrophied fruit appearance resulting from the development of the lesions. Therefore, the objective of this study was to elaborate and validate a standard area diagram set (SADs) for the severity evaluation of scab in fruits of sour passion fruit. The SADs comprised eight severity levels (0.6; 1; 2; 4; 8; 16; 37; and 46%) and was validated by 20 raters (G1 and G3, inexperienced; G2 and G4, experienced). Initially, all raters performed a non-aided SADs evaluation of the scab severity. Afterward, G1 and G2 completed the second evaluation without the proposed SADs, whereas G3 and G4 performed a SADs-aided assessment of the disease severity. The accuracy and precision of the evaluations were determined by simple linear regression and by the Lin&rsquo;s concordance correlation coefficient. Constant and systematic errors decreased with the use of the SADs, demonstrating an approximation between the estimated and the actual values. Precision increased with an increase in the coefficient of determination. Also, the absolute error reduced by 66% (G3) and 47% (G4). Therefore, 94.4% (G3) and 98.8% (G4) of the estimates had up to &plusmn;10% of errors, which corresponds to a 20.4% (G3) and 5.6% (G4) increment in the estimates with errors within this variation range. As a result, accuracy and precision were higher in the SADs-aided groups. Inexperienced raters were the most benefited by the use of the SADs. The accuracy and precision of the non-aided groups had a slight or no increase when compared with the SADs-aided groups.

Abstract This study aimed to establish an alternative treatment for post-harvest storage of Papaya (Carica papaya L.), var “Tainung 1” and to control major diseases at this stage. Two storage place were evaluated (room temperature and cold room); Six treatments (Control, Samurai 40ml/20l water, Serenade® 40ml/20l water, Sanatizer EUPROOFF® 10ml/20l water, EUPROOFF® + Serenade® + Samurai, Serenade® + Samurai), five storage periods (0, 3, 6, 9 and 12 days) and three seasons (December, January and February). Fruit weight loss (FWL), color index, number and size of lesions were evaluated and used to calculate the disease incidence and average of disease incidence. The FWL and index color of fruits were more affected by monthly variation than the treatments, especially the Samurai one. The growth of disease incidence were slower under cold room. Among the treatments, the Samurai was the most efficient,but if mixed to others products their efficiency was not observed. These results suggest that the using of Samurai only in cold room conditions can be more effective in control of post-harvest diseases of papaya.