Evaluación de dos productos desinfectantes para la producción de forraje verde hidropónico de avena (Avena sativa L.) en el sector San Pedro del cantón Cevallos

Abstract

Hydroponic green fodder (HGF) is a plant biomass production technology that is obtained from the initial growth of plants in the germination and early growth stages of seedlings from viable seeds. In the present study, the effect of two seed disinfectants on the yield of hydroponic green forage of oats (Avena sativa L.) was evaluated in the San Pedro sector of Municipality of Cevallos. For this purpose, three concentrations of sodium hypochlorite (0.5, 1 and 2 mL/L) and quaternary ammonium (1, 2.5 and 5 mL/L) were tested for seed disinfection. In each treatment, 2 kg of oat seeds were used, which were sown in germinating trays. The trial was conducted in a randomized complete block design with a 2 x 3 +1 factorial arrangement, with the first factor represented by the type of disinfectant (sodium hypochlorite or quaternary ammonium) and the second factor represented by the dose of disinfectant. Higher germination percentage was reached in seeds treated with sodium hypochlorite, where it varied from 74 to 83%, similar to the germination percentage observed in untreated seeds (control treatment), while seeds treated with quaternary ammonium, germination ranged from 2 to 44%. Likewise, higher forage production was obtained in plants from seeds treated with sodium hypochlorite, regardless of the concentration used, which did not show differences with untreated plants, while in plants obtained from seeds disinfected with ammonia quaternary forage production tended to decrease with increasing concentration. Additionally, quaternary ammonium caused an increase in the number of days needed to reach the maximum dry matter accumulation. It is concluded that sodium hypochlorite turned out to be more effective for the disinfection of oat seeds, for which it is recommended to produce hydroponic forage