Resumo -O objetivo deste trabalho foi determinar, em campo, a preferência do bicudo-das-palmeiras (Rhynchophorus palmarum) por estipes de dendezeiro (Elaeis guineensis), caiaué (Elaeis oleifera) e pelo híbrido entre caiaué e dendezeiro. O experimento foi conduzido no banco de germoplasma de dendê da Comissão Executiva de Planejamento da Lavoura Cacaueira. Entre os três genótipos testados, o caiaué é significativamente menos preferido por Rhynchophorus palmarum, seguido do híbrido interespecífico e do dendezeiro.Termos para indexação: Elaeis guineensis, Elaeis oleifera, Rhynchophorus palmarum, manejo do anel-vermelho.
Preference of palm weevils for oil palm, caiaué, and for their interspecific hybridAbstract -The objective of this work was to determine, in the field, the preference of the palm weevil (Rhynchophorus palmarum) for trunks of oil palm (Elaeis guineensis), caiaué (Elaeis oleifera), and for the interspecific hybrid between caiaué and oil palm. The experiment was carried out at the oil palm germplasm bank of Comissão Executiva de Planejamento da Lavoura Cacaueira, Brazil. Among the three tested genotypes, caiaué is significantly less preferred by Rhynchophorus palmarum, followed by the interspecific hybrid, and oil palm.
The Fig (Ficus carica L.) is a fruit produced worldwide for in in natura consumption and processing. The aim of this work was to evaluate the effect of edible coatings on the post-harvest qualities of fig fruit. The experiment was conducted at the Instituto Federal Goiano – Urutaí Campus, using figs from a orchard in the municipality of Silvania-GO. The fruits, after washing and sanitization, received edible coatings (polysaccharide, protein and lipid), constituting the treatments together with the control treatment (without cover). The fruits were stored for six days at a temperature of 25 ± 2 º C, in a completely randomized design with 5 replications. Sensory parameters (appearance, aroma and flavor) and physicochemical (weight loss, titratable acidity, soluble solids, ratio, pH and diameter) were analyzed at 0, 3 and 6 days of storage. The data obtained were submitted to MANOVA analysis and the treatments were compared using ellipses of 95% of confidence. The fig fruits, of all treatments, showed no variation of soluble solids over time (10 º Brix), and did not present aroma and alcoholic flavor. For the other variables analyzed there were variations, highlighting the lipid coatings, which maintained better fruit qualities over time, differentiating from the other treatments. The polysaccharide and proteic coatings presented identical behavior, this, intermediate to the lipid coatings and to the control treatment. In the conditions that the study was carried out, there was a rapid loss of fruit quality and, among the covers, the lipid minimized these losses.
A banana (Musa spp.) é uma das frutas mais consumidaspela população e apresenta grande importânciana fruticultura. É uma cultura bastante exigente nutricionalmente e depende de uma relação adequada de nutrientes para o seu desenvolvimento. O objetivo da pesquisa foi avaliar o desenvolvimento e a produtividade da bananeira "BRS Platina" com o uso de pó de rocha de micaxisto (remineralizador de solo) no primeiro ciclo de cultivo. O experimento foi conduzido no Instituto Federal Goiano – Campus Morrinhos (-17◦48'50,4" S, 49◦12'16,5'' W, altitude de 902 metros) no delineamento experimental em blocos ao acaso. Os tratamentos consistiram da adubação com e sem pó de rocha de micaxisto, com sete plantas por parcela e 12 repetições. As plantas de primeiro ciclo (mãe), foram avaliadas aos 230, 275 e 320 dias após o transplante das mudas.Foram mensurados a altura de planta, circunferência do pseudocaule e número de folhas. Quando entraram na fase produtiva e atingiram o ponto de colheita, avaliou-se a massa do cacho, o número de pencas e bananas,realizando contagem manual. A adubação com pó de rocha de micaxisto favoreceu o desenvolvimento vegetativo das plantas, mas não influenciou significativamente a produtividade de bananeiras "BRS Platina".
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