Morfometría básica de frutos espinosos de “accesiones” de tacaco (Sechium tacaco; Cucurbitaceae)
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2024-08-01
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artículo original
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Monge Pérez, José Eladio
Loría Coto, Michelle
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Introducción. Existen pocos estudios sobre la morfología de los frutos del tacaco (Sechium tacaco) de diferentes “accesiones”. Objetivo: Hacer la caracterización morfológica de los frutos espinosos de las accesiones de tacaco. Métodos: Entre julio de 2017 y septiembre de 2019, medimos de 62 a 88 frutos con espinas de doce “accesiones” en varios sitios de Costa Rica. Resultados: Encontramos diferencias entre las accesiones para todas las variables. Los ámbitos de las medias entre “ accesiones” fueron: peso (20,15-39,71g), longitud (45,92-61,33mm), ancho (33,26-42,77mm), grosor (25,85-30,86mm), número de suturas longitudinales completas (5,04-5,71), número de suturas longitudinales incompletas (0,75-2,27), número total de suturas longitudinales (5,84-7,52), número de espinas (3,18-24,30), relación longitud/ancho (1,35-1,52), relación longitud/grosor (1,77-2,08) y relación ancho/grosor (1,25-1,44). Conclusión: Existe una importante variabilidad en las características morfológicas de estos frutos. Documentamos, por primera vez, la existencia de la "tacaquilla", definida por frutos pequeños.
Introduction: There are few studies on the morphology of tacaco (Sechium tacaco) fruits from different accessions. Objective: To do the morphological characterization of thorny fruits from tacaco accessions. Methods: Between July 2017 and September 2019, we measured 62 to 88 fruits with thorns from twelve tacaco accessions, at various sites in Costa Rica. Results: We found differences between accessions for all variables. The ranges of means between accessions were: weight (20,15-39,71g), length (45,92-61,33mm), width (33,26-42,77mm), thickness (25,85-30,86mm), number of complete longitudinal sutures (5,04-5,71), number of incomplete longitudinal sutures (0,75-2,27), total number of longitudinal sutures (5,84-7,52), number of thorns (3,18-24,30), length/width ratio (1,35-1,52), length/thickness ratio (1,77-2,08), and width/thickness ratio (1,25-1,44). Conclusion: There is an important variability in the morphological characteristics of these fruits. We document, for the first time, the existence of the “tacaquilla”, defined by small fruits.
Introduction: There are few studies on the morphology of tacaco (Sechium tacaco) fruits from different accessions. Objective: To do the morphological characterization of thorny fruits from tacaco accessions. Methods: Between July 2017 and September 2019, we measured 62 to 88 fruits with thorns from twelve tacaco accessions, at various sites in Costa Rica. Results: We found differences between accessions for all variables. The ranges of means between accessions were: weight (20,15-39,71g), length (45,92-61,33mm), width (33,26-42,77mm), thickness (25,85-30,86mm), number of complete longitudinal sutures (5,04-5,71), number of incomplete longitudinal sutures (0,75-2,27), total number of longitudinal sutures (5,84-7,52), number of thorns (3,18-24,30), length/width ratio (1,35-1,52), length/thickness ratio (1,77-2,08), and width/thickness ratio (1,25-1,44). Conclusion: There is an important variability in the morphological characteristics of these fruits. We document, for the first time, the existence of the “tacaquilla”, defined by small fruits.
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fenotipos, Centroamérica, hortaliza, fitomejoramiento, diversidad, tenotypes, Central America, vegetable, plant breeding, diversity