Morphological characteristics and seed viability of Schizolobium parahyba (Vell.) S.F. Blake

Schizolobium parahyba is a fast-growing tropical tree, with various uses: forestry, agroforestry, landscaping, boat building, cabinetmaking and light packaging. Studies of morphometry and viability of forest species seeds are important for their identifi cation, conservation and sustainable use. The objective of the study was to describe the morphometric and viability characteristics of the seeds of S. parahyba. Seeds of free pollination of plantations from three locations in Tierralta (Córdoba - Colombia) were used. In each plantation, fi ve trees were randomly taken and, of each, 100 seeds to estimate the morphometric characteristics and seed weight. The morphological description was made with a sample of 10 seeds. The viability was determined by the tetrazolium test in an experiment under a completely randomized design, with six treatments and four replicates of 25 seeds each. The six treatments corresponded to the combinations of three concentrations of tetrazolium (0.5; 1.0 and 1.5%) and two staining times (2 and 3 hours). The width, length, and ratio width / length of the seed showed little variation, compared to the freshweight of a seed, freshweight of 100 seeds and number of seeds per kilogram. Tetrazolium and germination tests showed similar and reliable results. The concentration of 0.5% tetrazolium, with immersion of 2 hours, was suffi cient to determine the viability of seeds of S. parahyba

• Autores: Espitia-Camacho, Miguel; Aramendiz Tatis, Hermes; Cardona-Ayala, Carlos
• Tipo de recurso: Article of journal
• Fecha de publicación: 2020
• Institución: Universidad de Ciencias Aplicadas y Ambientales U.D.C.A
• Repositorio: Repositorio Institucional UDCA
• Idioma: spa
• OAI Identifier: oai:repository.udca.edu.co:11158/3474
• Acceso en línea: https://revistas.udca.edu.co/index.php/ruadc/article/view/1530; https://doi.org/10.31910/rudca.v23.n1.2020.1530
• Palabra clave: Schizolobium parahyba; Arboles forestales; Calidad de la semilla; Germinación de la semilla; Tetrazolio; Tambores
• Rights: openAccess
• License: Derechos Reservados - Universidad de Ciencias Aplicadas y Ambientales