Bananas fruits are widely consumed in the world. In Brazil, the role of agriculture activities in the economy and society is huge, especially for banana farmers. The most popular variety of bananas in Brazil are Prata, Grand Naine, Williams and Nanicão; however, all of them have at least one undesirable trait such as height, yield, vegetative cycle, pests and diseases tolerances, drought or cold resistance and fruit quality. This literature review aims to evaluate agronomic performance and fruit quality of new genotypes of the Prata and Cavendish subgroups, and to make further recommendations on high quality genotypes to Brazilian banana producers. Therefore, a literature review of previously acquired data was conducted and the outcomes indicated genotypes’ adaptability to specific region that assessed vegetative and productive attributes of new cultivars, in comparison to most commercially exploited ones, which have already shown high vulnerability to pests and diseases. These outcomes will then facilitate banana producers the opportunity to select the most stable and adaptable genotypes according to environmental conditions.

The cultivar Sanguínea de Mombuca (Citrus sinensis [L.] Osbeck) bears lycopene-rich fruits with attractive red pulp and high nutritional value; thus, this cultivar has the potential to diversify orchards for the production of fruits for natural consumption and juice. Therefore, studies on the productive performance in combination with rootstocks are required. This study evaluated the phenological cycles, yield, ripening curve, and fruit quality of this cultivar grafted onto ‘Rangpur’ lime and ‘Swingle’ citrumelo. The study was conducted in the Midwest of the state of São Paulo, in the subtropical region of southeastern Brazil, and the field experiment was performed over two consecutive seasons. Rootstocks had little effect on the duration of the phenological cycles. The fruit ripening curve predicted the time of harvest as approximately 240 days after anthesis, regardless of rootstock. Fruits harvested from trees grafted onto ‘Swingle’ citrumelo showed higher levels of soluble solids and sugars and higher technological indices. The larger number of fruits and greater fresh weight confirmed that better yield performance occurred with the trees grafted onto the ‘Rangpur’ lime as opposed to the ‘Swingle’ citrumelo rootstock.

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.

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.

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 2а 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.

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Atemoia (Annona x atemoya Mabb.) produz fruto de interesse econômico com sabor doce e agradável. Antracnose, principal doença provocada por fungo, Colletotrichum, causa perda na produção de fruto de atemoia, sendo controlada com fungicida a base de cobre. O elemento pode causar escurecimento da casca do fruto e mesmo sem perda da doçura, provocar sua desvalorização em até 40%. Estudou-se o escurecimento e sólidos solúveis (ºBrix) de frutos de plantas de atemoia pulverizadas com hidróxido de cobre (Cu(OH)2), município de Botucatu – SP. Delineamento em blocos casualizados, avaliou 0, 1 e 3,9 ml L-1 de Cu(OH)2 aplicado quinzenalmente, que constituíram os seguintes tratamentos: T1: ausência de Cu(OH)2 - (tratamento controle), T2: 3,9 ml L-1 Cu(OH)2 - duas aplicações, T3: 3,9 ml L-1 Cu(OH)2 – quatro aplicações, T4: 1 ml L-1 Cu(OH)2 - sete aplicações e T5: 1 ml L-1 Cu(OH)2 - 11 aplicações. Utilizou-se adjuvante de origem vegetal (0,01 ml L-1) em todos os tratamentos. Avaliando-se o escurecimento da casca diariamente, a determinação de sólidos solúveis (°Brix) foi realizada em 60 frutos, dois por árvore, aos 154 dias (frutos imaturos) e 169 dias (frutos maduros), após início das pulverizações dos frutos em estádio de chumbinho. Apesar do escurecimento da casca com prejuízo da comercialização a partir do quinto dia pós-colheita, sete pulverizações com 1 ml L-1 de Cu(OH)2 (T4) revelou frutos com ºBrix iguais a 11,16 (imaturos) e 26,16 (maduros). Cobre em baixa concentração e maior frequência contribuiu com a distribuição dos fotoassimilados para os frutos e com sua conversão em açúcares.