Size and vigor of Anadenanthera colubrina (Vell.) Brenan seeds harvested in Caatinga areas BispoJaciara de Souza CostaDanielle Carolina Campos da GomesSamara Elizabeth Vieira OliveiraGilmara Moreira de MatiasJanete Rodrigues RibeiroRenata Conduru DantasBárbara França 2017 <div><p>Abstract: Angico is a species found in several environments in Brazil, with several applications. It is used in the timber industry and mainly in folk medicine. In order to verify a variation in the biometric characteristics and the quality of seeds from different mother-plants in different harvesting years, the following variables were studied: moisture content, diameter, density, electrical conductivity, fresh and dry matter of seedlings, germination percentage and kinetics, in a completely randomized design with a 2x3 factorial arrangement (lots x size). The obtained results showed that angico seeds from different lots showed different physiological quality, possibly due to the climate variations to which mother-plants were submitted in the different years. Seed size directly interferes with seedling growth under both controlled and greenhouse conditions, and it can be used as a vigor indicator for angico seeds.</p></div>