The accumulation of dry matter per organ of the Chinese potato plant (Colocasia esculenta (L.) Schtt) local white variety was determined in three moments of crop development, using three planting distances (1.0m x 0.40m, 1.0m x 0.60m and 1.0mx 0.80 m) in the conditions of the Ecuadorian Amazon, evidencing the physiological development of the crop. A factorial design in blocks was used completely at random, forming 9 plots of 30 m2, where the study factor was the planting distance representing the treatments. For data collection, five plants were randomly selected in perfect intraspecific competition. The variables were evaluated at 60, 120 and 180 days after planting. The analysis of double variance was carried out, using the Tukey test at a probability level of 95%. The highest values of dry matter accumulation by plant organs were obtained in the plantation distance of 1.0 m x 0.80m.