Comercialmente, a propagação do mirtileiro por meio de estacas é o método mais utilizado, proporcionando resultados diversos de acordo com a cultivar e a concentração de ácido indolbutírico (AIB) utilizada. Objetivou-se, com este trabalho, avaliar o efeito do ácido indolbutírico no enraizamento de estacas lenhosas de mirtileiro. O material utilizado constituiu-se de segmentos de ramos secundários, com quatro gemas e diâmetro médio de 4,5mm. O delineamento experimental foi completamente casualizado, em fatorial 5x3, com cinco concentrações de AIB (0; 1.500; 3.000, 4.500 e 6.000mg L-1) e três cultivares (Delite, Bluebelle e Briteblue), com quatro repetições e dez estacas por parcela. Após o preparo das estacas, a base destas foi imersa, por 10 segundos, na solução de AIB, sendo colocadas para enraizar em uma mistura de areia de granulometria grossa e substrato comercial Turfa Fértil® com pH de 5,5 na proporção de 1:1(v/v), com irrigação manual. Após 138 dias da instalação do experimento, avaliaram-se a porcentagem de estacas enraizadas, número médio de raízes por estaca, comprimento da maior raiz, número médio de brotações, comprimento da maior brotação e a porcentagem de estacas sobreviventes. De acordo com os resultados obtidos, não foi verificada interação entre os diferentes fatores. Verificaram-se diferenças entre as cultivares nas variáveis comprimento da maior raiz, número médio de raízes por estaca e para porcentagem de estacas sobreviventes. Para concentração de AIB, verificou-se, por meio da análise de regressão, um comportamento linear crescente para as variáveis porcentagem de estacas sobreviventes e enraizadas, porém a resposta foi quadrática para comprimento da maior raiz. Conclui-se que a utilização de AIB em concentração de até 6.000mg L-1 não é suficiente para expressar o máximo potencial de enraizamento nas estacas de mirtileiro das cultivares Delite, Bluebelle e Briteblue.
The peel of passion fruit has interesting properties, mainly as a source of dietary fiber, but there are few studies concerning the use of this portion of the fruit. This work aimed to evaluate the use of passion fruit peel to obtain flour through the characterization of the physicochemical properties of the peel of fresh passion fruit and subjected to drying process. Subsequently, the samples underwent weight loss process and scanning electron microscopy (SEM). We evaluated the moisture content, dry matter, crude protein and ash, lipids, water activity, instrumental color parameters, absorption rate in milk, the solubility rate in milk, absorption rate in milk drink, rate solubility milk drink, the mathematical modeling of mass loss and scanning electron microscopy to passion fruit peel flour. The quantification of chemical and physical characteristics indicated that the flour may have potential for use in dairy beverages. The considerable concentration of fiber, especially insoluble fiber which obtained value of 23.70%, supposes that this flour can be studied for use in enrichment of food products. Fiber analysis confirmed the presence of this material and SEM showed that the starch can be degraded by drying and lipid extraction. The peel of the passion fruit can be reused by flour production which indicates that fruit has potential for products enrichment.
The aim of this study was to evaluate the influence of a fertilizer matrix of shale-based by-products and shale water as an alternative fertilization on strawberry culture. Were used 16 treatments, which resulted from the combination of three factors levels: cultivar (with two levels: Camarosa and Camino Real), allocated in plot, complementary base fertilization (with two levels: with and without MBR fertilizer matrix at a dose of 2000 kg ha-1), allocated in subplots and foliar fertilization (with four levels: Shale water, shale water + boron, shale water + calcium and a control without foliar fertilization), allocated in the sub-subplot. Yield, functional compounds and fruit chemical analysis were investigated. The production obtained in strawberry crop was similar or higher than national average. In the conditions of this study, in area with high level of initial fertility, the complementary base fertilization with MBR and foliar fertilization with shale water-based, did not influence the variables of quality such as the functional properties and chemical characteristics of strawberry fruits. Similarly, the added micronutrients in leaf fertilization shale water-based, Ca and B did not influence the yield and quality variables of studied culture.
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