Waterlogging stress in cape gooseberry plants 393 Rev. Acad. Colomb. Cienc. Ex. Fis. Nat. 38(149) AbstractClimate change has altered normal rainfall cycles; causing the flooding of arable land and, thus, affecting agricultural production in Colombia. Two-month-old cape gooseberry plants, propagated by seeds, were subjected to different durations of continuous waterlogging in a greenhouse: 0, 2, 4, 6 and 8 days, with evaluations up to 50 days. The plants were placed in ditches covered with polyethylene and filled with water up to 5 cm above the substrate surface of the pots. The parameters evaluated were: plant height, leaf area, stem diameter, dry weight of the aerial part, root and reproductive organs, and general symptoms following a wilting scale. The 6 and 8-day-waterlogged plants were the most affected by the flooding conditions, presenting the lowest values for all the measured variables. Due to the oxygen stress in the root zone, the plants showed yellowing, epinasty, necrosis and abscission of the leaves, more so in the 8-day-waterlogged plants.Key words: Hypoxia, leaf area, dry weight, symptoms. Efecto del estrés por anegamiento sobre el crecimiento, desarrollo y sintomatología de plantas de uchuva (Physalis peruviana L.) ResumenEl cambio climático ha alterado el ciclo normal de las lluvias, inundando así las tierras arables y afectando la producción agrícola en Colombia. Plantas de uchuva, de 2 meses de edad, y propagadas por semilla, fueron sometidas bajo invernadero a diferentes duraciones de anegamiento continuo: 0, 2, 4, 6 y 8 días y evaluaciones hasta 50 días. Las plantas se colocaron en zanjas cubiertas con polietileno que se llenaron con agua hasta 5 cm por encima de la superficie del sustrato contenido en las macetas. Los parámetros evaluados fueron: altura de planta, área foliar, diámetro del tallo, pesos secos de parte aérea, raíz y órganos reproductivos y escala de síntomas generales de marchitamiento. Las plantas anegadas durante 6 y 8 días presentaron los valores más bajos para todas las variables evaluadas. Debido al estrés por falta de oxígeno en la rizósfera las plantas mostraron amarillamiento, epinastia, necrosis y abscisión de hojas, sobre todo en las de 8 días anegadas.Palabras clave: hipoxia, área foliar, peso seco, síntomas.
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