Evaluación de la viabilidad de semillas de 5 especies forestales conservadas en el laboratorio de germoplasma de la UTPL

Abstract

Abstract: The study carried out at the UTPL Germplasm Laboratory focused on evaluating the germination of fresh and stored seeds of five forest species: Cinchona officinalis, Cedrela montana, Delostoma integrifolium, Schinus molle and Tecoma stans. Using an experimental design, percentages of germination, viability through Tetrazolium, morphology, % humidity and weight were compared between fresh seeds and those stored in the UTPL Germplasm Bank from various years. The results indicated that fresh seeds exhibited a higher percentage of germination and viability in all species evaluated. It was observed that seeds stored for several years had larger dimensions in length, width and thickness compared to those recently collected. The importance of humidity was highlighted, identifying it as a crucial factor in maintaining the viability of seeds stored in jars. In conclusion, the study highlights the relevance of gene banks for biodiversity conservation and adaptation to climate change, underlining the need to carefully consider storage conditions to preserve the genetic quality of seeds.