Postharvest application of growth regulators on Dioscorea alata (L.) and Dioscorea rotundata (Poir.)

Yam is a tuber that sees high demand and consumption in Colombia, whose post-harvest quality losses during storage have been a challenge for farmers. At the Universidad de Cordoba-Colombia, Agronomy Engineering program, between March and August of 2019, a trial was established to estimate the effect...

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Main Authors: Santos-Cáceres, Astrid Carolina, Barrera-Violet, José Luis, Cardona-Ayala, Carlos Enrique
Format: Online
Language:eng
Published: Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2021
Subjects:
Online Access:https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/12315
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author Santos-Cáceres, Astrid Carolina
Barrera-Violet, José Luis
Cardona-Ayala, Carlos Enrique
author_facet Santos-Cáceres, Astrid Carolina
Barrera-Violet, José Luis
Cardona-Ayala, Carlos Enrique
author_sort Santos-Cáceres, Astrid Carolina
collection OJS
description Yam is a tuber that sees high demand and consumption in Colombia, whose post-harvest quality losses during storage have been a challenge for farmers. At the Universidad de Cordoba-Colombia, Agronomy Engineering program, between March and August of 2019, a trial was established to estimate the effect of two growth regulators on the variables: tuber weight loss (TWL), tuber sprouting (TS), starch on a dry basis (SD), and reducing sugars (RS) during storage for 120 days, with evaluations every 30 days. A completely randomized design with a 4×2 factorial arrangement plus two additional treatments with three replications was used. Four concentrations of abscisic acid (ABA) were tested: 0, 10, 15, and 20 mg L-1 in the species D. alata and D. rotundata, plus paclobutrazol (PBZ): 15 mL kg-1, for a total of 10 treatments. Each experiment unit consisted of 12 tubers that were preserved in darkness at 23°C and 53% relative humidity on average. ABA and PBZ exerted effective control over the sprouting and weight loss of the tubers during the first 90 days of storage in both species, which averaged 24.4%, i.e. approximately 488 g, favoring high starch contents, and did not influence the reducing sugar content.
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spelling oai:oai.revistas.uptc.edu.co:article-123152021-11-03T13:59:28Z Postharvest application of growth regulators on Dioscorea alata (L.) and Dioscorea rotundata (Poir.) Aplicación de reguladores de crecimiento en Dioscorea alata (L.) y Dioscorea rotundata (Poir.) durante la postcosecha Santos-Cáceres, Astrid Carolina Barrera-Violet, José Luis Cardona-Ayala, Carlos Enrique Abscisic acid Paclobutrazol Tuber Yam Starch Reducing sugars Tuber Ácido abscísico Paclobutrazol Tubérculo Ñame Almidón Azúcares reductores Tubérculos Yam is a tuber that sees high demand and consumption in Colombia, whose post-harvest quality losses during storage have been a challenge for farmers. At the Universidad de Cordoba-Colombia, Agronomy Engineering program, between March and August of 2019, a trial was established to estimate the effect of two growth regulators on the variables: tuber weight loss (TWL), tuber sprouting (TS), starch on a dry basis (SD), and reducing sugars (RS) during storage for 120 days, with evaluations every 30 days. A completely randomized design with a 4×2 factorial arrangement plus two additional treatments with three replications was used. Four concentrations of abscisic acid (ABA) were tested: 0, 10, 15, and 20 mg L-1 in the species D. alata and D. rotundata, plus paclobutrazol (PBZ): 15 mL kg-1, for a total of 10 treatments. Each experiment unit consisted of 12 tubers that were preserved in darkness at 23°C and 53% relative humidity on average. ABA and PBZ exerted effective control over the sprouting and weight loss of the tubers during the first 90 days of storage in both species, which averaged 24.4%, i.e. approximately 488 g, favoring high starch contents, and did not influence the reducing sugar content. El ñame es un tubérculo de alta demanda y consumo en Colombia, cuyas pérdidas de calidad poscosecha durante el almacenamiento han sido un reto para los agricultores. En la Universidad de Córdoba-Colombia, en el programa de Ingeniería Agronómica, entre marzo y junio de 2019, se estableció un ensayo para estimar el efecto de dos reguladores de crecimiento sobre las variables: pérdida de peso de los tubérculos (PPT), brotación de tubérculos (BT), almidón en base seca (AS) y azúcares reductores (AR), durante el almacenamiento por 120 días, con evaluaciones cada 30 días. Se utilizó un diseño completamente aleatorizado con arreglo factorial 4×2 más dos tratamientos adicionales, con tres repeticiones. Se probaron cuatro concentraciones de ácido abscísico (ABA): 0, 10, 15 y 20 mg L-1 en las especies D. alata y D. rotundata, más paclobutrazol (PBZ): 15 mL kg-1, para un total de 10 tratamientos. Cada unidad experimental estuvo conformada por 12 tubérculos, conservados bajo oscuridad, a 23°C y 53% de humedad relativa, en promedio. El ABA y el PBZ ejercieron control efectivo sobre la brotación y la pérdida de peso de los tubérculos durante los primeros 90 días de almacenamiento en ambas especies, que en promedio fue del 24.4%, es decir, 488 g, aproximadamente, favorecieron la conservación de altos contenidos de almidón y no influyeron en el contenido de azucares reductores. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC 2021-05-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Text Texto application/pdf https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/12315 10.17584/rcch.2021v15i2.12315 Revista Colombiana de Ciencias Hortícolas; Vol. 15 No. 2 (2021); e12315 Revista Colombiana de Ciencias Hortícolas; Vol. 15 Núm. 2 (2021); e12315 Revista Colombiana de Ciencias Hortícolas; Vol. 15 No 2 (2021); e12315 Revista Colombiana de Ciencias Hortícolas; V. 15 N. 2 (2021); e12315 Revista Colombiana de Ciencias Hortícolas; v. 15 n. 2 (2021); e12315 2422-3719 2011-2173 eng https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/12315/10589 Colombia; Cordoba; Monteria Colombia; Cordoba; Monteria Copyright (c) 2021 Revista Colombiana de Ciencias Hortícolas
spellingShingle Abscisic acid
Paclobutrazol
Tuber
Yam
Starch
Reducing sugars
Tuber
Ácido abscísico
Paclobutrazol
Tubérculo
Ñame
Almidón
Azúcares reductores
Tubérculos
Santos-Cáceres, Astrid Carolina
Barrera-Violet, José Luis
Cardona-Ayala, Carlos Enrique
Postharvest application of growth regulators on Dioscorea alata (L.) and Dioscorea rotundata (Poir.)
title Postharvest application of growth regulators on Dioscorea alata (L.) and Dioscorea rotundata (Poir.)
title_alt Aplicación de reguladores de crecimiento en Dioscorea alata (L.) y Dioscorea rotundata (Poir.) durante la postcosecha
title_full Postharvest application of growth regulators on Dioscorea alata (L.) and Dioscorea rotundata (Poir.)
title_fullStr Postharvest application of growth regulators on Dioscorea alata (L.) and Dioscorea rotundata (Poir.)
title_full_unstemmed Postharvest application of growth regulators on Dioscorea alata (L.) and Dioscorea rotundata (Poir.)
title_short Postharvest application of growth regulators on Dioscorea alata (L.) and Dioscorea rotundata (Poir.)
title_sort postharvest application of growth regulators on dioscorea alata l and dioscorea rotundata poir
topic Abscisic acid
Paclobutrazol
Tuber
Yam
Starch
Reducing sugars
Tuber
Ácido abscísico
Paclobutrazol
Tubérculo
Ñame
Almidón
Azúcares reductores
Tubérculos
topic_facet Abscisic acid
Paclobutrazol
Tuber
Yam
Starch
Reducing sugars
Tuber
Ácido abscísico
Paclobutrazol
Tubérculo
Ñame
Almidón
Azúcares reductores
Tubérculos
url https://revistas.uptc.edu.co/index.php/ciencias_horticolas/article/view/12315
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