Effect of different biostimulants and a physiological activator on performance indicators of common bean

Abstract

The common bean Phaseolus vulgaris is one of the most important legumes for human consumption. With the objective of evaluating the effect of biostimulants and a physiological activator on performance indicators, a research was carried out in the province of Cotopaxi, Ecuador. A randomized block design was used with five treatments, consisting of: T0 = Control without application, T1 = 10 ml biostimulant 1 + 10 ml biostimulant 2, T2 = 20 ml biostimulant 1 + 10 ml biostimulant 2, T3 = 10 ml biostimulant 1 + 10 ml of biostimulant 2 + 10 ml activator (foliar), T4 = 20 ml biostimulant 1 +10 ml biostimulant 2 +20 ml activator (foliar). Percentage of emergence, plant height, length and weight of the root, weight of the aerial part, days to flowering, weight of 100 grains, and yield were evaluated. The results reflected an emergence of 100% of the seedlings after seven days. The plant height, length and root weight indicators reflected the highest values ​​at 60 days, when using the biostimulant combined with the activator. The aerial part of the plant reached the highest weight for T3 (186.23 g). The days to flowering, number of pods, weight of 100 grains, and yield reflected the best results for T2, T3 and T4, the latter reached higher values than 490 Kg/ha-1. The application of the different biostimulants combined with the biological activator increased the morphophysiological indicators and the yield of the bean.