Adubação orgânica da bananeira prata-anã e experiências com outras cultivares nas ilhas canárias

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Caracterização de filmes de féculas modificadas de mandioca como subsídios para aplicação em pós-colheita de hortículas

Pós-graduação em Agronomia (Horticultura) - FCA

Pós-colheita e processamento de amora-preta ‘Tupy’

Pós-graduação em Agronomia (Horticultura) - FCA

Ciclo de cultivo e técnicas pós-colheita de yacon (Polymnia sonchifolia Poep. Endl.) em função do conteúdo de frutose total nos órgãos subterrâneos

Pós-graduação em Agronomia (Horticultura) - FCA

Produtos de efeitos fisiológicos no desenvolvimento de plantas de tomate ‘giuliana’, na produção e pós-colheita de frutos

Pós-graduação em Agronomia (Horticultura) - FCA

Armazenamento refrigerado, atmosfera controlada e desverdecimento de tangerinas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Uso agronômico do subproduto da indústria processadora de goiabas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Conservação pós-colheita de goiaba pelo uso de reguladores de crescimento vegetal, cálcio e da associação destes com refrigeração e embalagens plásticas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Controle da mancha preta dos frutos cítricos em cultivo orgânico e convencional e do bolor verde em pós-colheita

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Efeitos de genótipos de feijão caupi e de espécies botânicas em diferentes formulações sobre Callosobruchus maculatus (FABR.)

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Protocolo para micropropagação de bananeira ‘Thap maeo’

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Calagem, adubação e nutrição mineral de Anonáceas

Among the edaphic factors, those related to acidity are the ones that affect productivity, especially in tropical regions. For culture the Annonaceae, no research results that indicate the proper base saturation, nor the determination of doses, times, application methods and sources of nutrients for orchards Annonaceae in training and production in order to promote sustainability and higher yields. Given the importance and potential of commercial exploitation of Annonaceae in Brazil and, considering the limited available scientific information on liming, fertilization and nutrition of fruit plants of this family, some research has to be carried out urgently due to the effects of nutrients on productivity, fruit quality, post-harvest, tolerance to pests and diseases, etc.

Controle de doenças fúngicas e de danos por frio em pós-colheita de lima ácida Tahiti

The Tahiti lime appears very susceptible to attack by post-harvest diseases, primarily by the fungi Penicillium and Phomopsis, and also because of its high sensitivity to storage at low temperatures. In order to reduce such damage, the present study aimed to verify the efficiency of heat treatment and disinfection of pathogens in the prevention of post-harvest chilling injury of this cultivar and to compare this treatment with other products using the conventional fungicides. The heat treatments were studied with hot-water temperatures ranging between 48 and 56° C. Water at room temperature was used as a control treatment. After treatment, the fruits were kept under cold temperature at 10° C and RH 90% for about 45 days. For comparison, three other treatments were carried out simultaneously, one using imazalil, one with baking soda, and a third with sodium carbonate, these three products being applied by baths in cold water. Two groups of fruit were evaluated, one treated by immersion considering pathogens coming from the field and another by inoculation with spores of the previously isolated pathogens. For the evaluation of physical and chemical parameters of fruits, determinations were made of the skin color, texture, weight loss, size, juice yield, soluble solids, total acidity and vitamin C content. The determination of the sensitivity of the fruit to cold was made by their exposure at temperatures inducing cold damage. The design was a randomized block design with nine treatments, analyzed by the Statgraphics statistical package. Heat treatments, especially at 52° C, were shown to be more promising in the control of pathogenic fungi and cold damage, surpassing the conventional fungicides. No changes were found in the intrinsic and extrinsic parameters in relation to the application of the different treatments.

Activity of some isoenzymatic systems in stored coffee grains

Considering the worldwide consumption of coffee, it is natural that throughout the history many people have dedicated the research to markers that contribute somehow on gauging its quality. This research aimed to evaluate the biochemical performance of arabica coffee during storage. Coffee in beans (natural) and in parchment (pulped) dried in concrete terrace and in dryer with heated air were packed in jute bags and stored in not controlled environmental conditions. Enzymatic activities of superoxide dismutase, catalase, peroxidase, polyphenoloxidase, esterase and lipoxygenase in coffee grains were evaluated at zero, three, six, nine and twelve months by means of electrophoresis. Independently of the drying method, the activity of isoenzymatic complexes highlighted deteriorative processes in stored grains of coffee. The treatments 60/40º C and 60º C used to reduce the water content imposed a greater stress condition, accelerated metabolism of natural coffee in the storage with decreased activity of defense mechanisms due to latent damage in these grains. Natural coffees are more sensible to high drying temperatures and its quality reduces faster than pulped coffee in the storage.

Nutrição mineral e qualidade do fruto de algumas frutíferas tropicais: goiabeira, mangueira,bananeira e mamoeiro

Fruit quality is the result of the action of several factors, in particular the individual and combined effect of mineral nutrients. The proper evaluation of mineral nutritional requirements causes that fruit plants can express all their genetic potential. Thus, a research has been conducted in tropical fruit, for evaluating the influence of mineral nutrients on fruit quality; however, they appear dispersed. The objective of this review was to compile and report the effects of mineral nutrients on fruit quality of guava, mango, banana and papaya. Consequently, information about the influence of the essential elements in color, flavor, shape, size, appearance, penetration resistance, physiological disturbs disease incidence, physicochemical characteristics and lifetime of post - harvest fruit are presented.