Aplicación de fosfito de potasio utilizando la técnica de endoterapia vegetal en la producción de claudia (Prunus domestica)

Abstract

Claudia (Prunus domestica), also known as European plum, is distributed throughout Latin America. It is not a traditional crop, however, it has high importance within the Ecuadorian diet and therefore its fertilization is not common, that is why that for its fertilization and phytosanitary control, the use of the endotherapy method has been started. In the present research work, potassium phosphite was evaluated in plant endotherapy in the production of Claudia. The treatments used were D1V1 (0.5% -20 ml); D1V2 (0.5% -40 ml); D1V3 (0.5% -60 ml); D2V1 (1.0% -20 ml); D2V2 (1.0% -40 ml); D2V3 (1.0% -60 ml); D3V1 (1.5% -20 ml); D3V2 (1.5% -40 ml); D3V3 (1.5% -60 ml) and Control (without application). Within the time of entry of the solution, the best results were obtained with dosage 2, volume 1 and 2 with 35 and 38.33 min; With the D3V2 treatment, a value of 197.33 was obtained (fruit set); In the foliar analysis with the treatment D2V2 and D2V3 percentages of 1.36-1.78 and 0.86-0.91 were obtained in phosphorus and potassium, respectively; In the case of number, weight and volume of fruits, dosage 3 presented the best results with 27, 417.93 and 453.33, respectively; finally the brix degrees (sweetness) in the second and third harvest, it was observed that the control obtained the best result with a value of 18.96. This study provides necessary information on the effects of the use of potassium phosphites by endotherapy methodology and its possible use in different cultivars (trees-shrubs).