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ELECTRICAL CONDUCTIVITY TEST IN Melanoxylon brauna SCHOTT. SEEDS (FABACEAE-CAES...
Ataíde, Glauciana da Mata; Borges, Eduardo Euclydes de Lima; Flores, Andressa VasconcelosThe electrical conductivity test is a simple and rapid method for evaluating seed vigor. The aim of the present study was to optimize the electrical conductivity test for assessing the vigor of Melanoxylon brauna seeds by investigating the effects of seed number (25, 50, or 75), water volume (25, 50, or 75 mL), and soaking duration (24, 48, or 72 h). The seeds belonged to two lots (I and II) that were collected...
Alterações fisiológicas e biométricas em sementes de Melanoxylon brauna Schott ...
Ataíde, Glauciana da Mata; Borges, Eduardo Euclydes de Lima; Leite Filho, Argemiro TeixeiraObjetivou-se neste trabalho estudar as alterações biométricas e a germinação das sementes de Melanoxylon brauna em diferentes temperaturas. As sementes foram colocadas para germinar nas temperaturas constantes de 10, 25, 30 e 40 °C. Sementes da espécie também foram expostas às temperaturas de 10 e 40 ºC, por períodos de 24, 48, 72 e 96 h, e transferidas para a temperatura de 25 ºC. Foram analisados a porcentage...
Characterization and biotechnological application of an acid α-galactosidase fr...
Fialho, Lílian da Silva; Guimarães, Valéria Monteze; Callegari, Carina Marin; Reis, Angélica Pataro; Barbosa, Daianny SilveiraTachigali multijuga Benth. seeds were found to contain protein (364 mg g−1 dwt), lipids (24 mg g−1 dwt), ash (35 mg g−1 dwt), and carbohydrates (577 mg g−1 dwt). Sucrose, raffinose, and stachyose concentrations were 8.3, 3.0, and 11.6 mg g−1 dwt, respectively. α-Galactosidase activity increased during seed germination and reached a maximum level at 108 h after seed imbibition. The α-galactosidase purified from ...
Avaliação preliminar da embebição de sementes de jacarandá-da-bahia
Ataíde, Glauciana da Mata; Borges, Eduardo Euclydes de Lima; Flores, Andressa Vasconcelos; Castro, Renato Vinicius OliveiraA atividade fisiológica das sementes inicia-se pela absorção de água, da qual resulta na reidratação dos tecidos e desencadeamento dos eventos metabólicos da germinação. Neste contexto, o presente estudo teve como objetivo verificar a influência da qualidade fisiológica e da umidade inicial nas taxas de absorção de água de sementes de jacarandá-da-bahia (Dalbergia nigra). Foram utilizadas sementes colhidas em m...
Imbibition of jacaranda-da-bahia seeds
Ataíde, Glauciana da Mata; Borges, Eduardo Euclydes de Lima; Flores, Andressa Vasconcelos; Castro, Renato Vinicius OliveiraThe physiological activity of the seeds begins with water uptake, resulting in tissues rehydration and triggering metabolic events of germination. In this context, the present study aimed to verify the influence of the physiological quality and initial humidity in the water absorption rate of Dalbergia nigra seeds. The seeds were collected at two different sites, representing lots I and II. Seeds belonging to t...
Adjustment methodology of the tetrazolium test for viability evaluation of angi...
Pinho, Daniel Santos; Borges, Eduardo Euclydes de Lima; Carvalho, Ana Paula Vilela; Corte, Viviana BorgesThe aim of this experiment was to evaluate the best concentration and the incubation time to test germination in seeds of Anadenanthera peregrina (L.) Speg. The seeds were preconditioned at 25 ºC for 14 hours immersed in distilled water. The coat were removed and the embryos submerged in tetrazolium solution (pH 6.5) solution in the concentrations of 0.1%; 0.05% and 0.01%, being kept in dark at 25 ºC for t...