Citrus scion/rootstock combinations alter the concentration of bioactive compounds in orange juice. The shelf life of freshly squeezed juice can be maximized through packaging and storage. The profiles of ascorbic (AA), dehydroascorbic acid (DHAA), and phenolic compounds were analyzed in juices of four sweet orange scions, Sanguínea de Mombuca (SM), Rubi (R), Lue Gin Gong (LGG), and Valência Delta Seedless (VDS), grafted onto ‘Rangpur’ lime (RL) and ‘Swingle’ citrumelo (SC) rootstocks. The juices obtained from the combination of the ‘Rubi’ orange in both rootstocks stood out by their higher concentration of ascorbic acid (AA) and dehydroascorbic acid (DHAA). Overall, all SC-grafted scions showed higher AA and DHAA and some phenolic compound concentrations. In all combinations, phenolic compounds showed the highest concentrations in the juices at the time of fruit extraction and decreased during storage. Dark packaging provided higher bioactive compounds in juices stored for longer periods. These findings can contribute to the diversification of scion/rootstock cultivars in order to increase the variety of orchards by choosing the best combinations for pasteurized orange juice with higher nutritional value.

The limited scion-rootstock combinations used in sweet orange orchards in Brazil reduce the commercial potential of citrus and lead to greater susceptibility to pests and diseases. Aiming to provide germplasm diversification, the research evaluated the Folha Murcha (FM) and Charmute de Brotas (CB) orange trees grafted onto ‘Rangpur’ lime (RL) and ‘Swingle’ citrumelo (SC) rootstocks. The study was conducted in the southern center of the state of São Paulo, in the subtropical region of southeastern Brazil. The grafted trees were planted in September 2016. The field experiment was conducted over two seasons. The combinations were evaluated based on the duration in days and degree-days of the phenological intervals, growth and yield performance, alternate bearing, fruit ripening, and quality. The trees of the two scion cultivars grafted onto RL had the shortest crop cycle, the earliest fruit ripening, and the largest canopy volume. SC produced fewer alternate bearings with greater production efficiency. The CB/SC combination produced fruits with a better color index, higher total soluble solids content, and a higher technological index. This assessment can be useful in planning orchards for dual-purpose markets, such as table fruit and the juice industry.

A bananeira “BRS FHIA 18” é um híbrido tetraploide de “Prata Anã” (subgrupo Prata), que apresenta resistência à “Sigatoka-negra” e ao “Mal-do-Panamá”, demonstrando ser um material genético promissor para a substituição dos cultivares do tipo Prata, em áreas comerciais com a incidência dessas doenças. Devido a isso, o presente trabalho teve como objetivo avaliar características produtivas do 2° ciclo da planta, no município de Botucatu-SP. Foram avaliadas as seguintes variáveis de produção: massa das pencas (kg), massa da ráquis (kg), massa do cacho (kg), número de frutos por cacho, massa média dos frutos (g), número de pencas por cacho e produtividade; na 2^а penca foram avaliados a massa, número, comprimento e diâmetro dos frutos. Foi utilizado o método das estatísticas descritivas para a avaliação das características do híbrido, através dos cálculos das médias e do desvio padrão. Os resultados mostraram que o híbrido “BRS FHIA 18” apresentou bom desempenho produtivo nas condições edafoclimáticas de Botucatu-SP, com alta quantidade de frutos por cacho (116 frutos) e produtividade média de 19,75 t ha^-1, valor próximo ao rendimento produtivo médio atual no estado de São Paulo.

Brazil holds a prominent position in the global fig market, with production mainly based on the cultivar ‘Roxo de Valinhos’. However, the high perishability of the fruit limits its distribution and postharvest conservation. In this context, the use of technologies that support fruit preservation becomes essential. Chitosan stands out for forming a natural biofilm that protects fruits against pathogens, in addition to reducing gas exchange and water loss. The aim of this study was to evaluate the application of different chitosan concentrations for the preservation of ‘Roxo de Valinhos’ figs during cold refrigerated storage. The experimental design was completely randomized in a split-plot arrangement, with five chitosan concentrations and five evaluation times. During refrigerated storage, chitosan-coated figs showed reduced deterioration, with up to 78% reduction in fruit decay compared with the control. The 1.2% coating delayed firmness loss, maintaining fruit firmness at 0.60 N after 20 days, compared with 0.52 N in untreated fruits. In addition, chitosan treatments reduced sugar accumulation, with 1.2% chitosan limiting reducing sugar increase to 29.09%. The preservative action of the biofilm was evidenced by correlation analysis, which associated coated fruits with better maintenance of physicochemical characteristics during storage. Correlation analysis indicated the preservative effect of the biopolymer, associating coated fruits with improved maintenance of physicochemical quality indicators during storage.