Efectos de hormonas vegetales de rizogénesis en la producción del cultivo de maíz (Zea mays, L), en condiciones edafoclimáticas de Ventanas

This research work was carried out on the land of the "Rancho Alegre" farm located at km 1.5 of the Ventanas - Echeandía road, Los Ríos province. in the geographical coordinates1 01 ° 26ʹ29.8ʺ S; 79 ° 25ʹ5.7ʺ W and 12 masl. The annual average of precipitation is 2329.8 mm; 80% relative humidity; 998.2 hours of heliophany and a temperature of 25.0 ° C. EMBLEMA corn hybrid material was used as planting material, which is more adapted to the area. The treatments consisted of the different levels of the foliar fertilizer Gibberellic acid + Indol-3-ylacetic acid + Brassinolide, in doses of 10, 20, 30 and 40 g / ha; plus a control treatment without application. The Randomized Complete Blocks experimental design with five treatments and 4 repetitions was used, the significance test used was Tukey's 95% probability. All necessary agricultural work was carried out in the cultivation of corn for its normal development, such as soil preparation, planting, irrigation, fertilization, weed control, phytosanitary control and harvesting. To estimate the effects of the treatments, the following data were taken: plant height, ear insertion height, ear length, number of grains per ear, number of rows of grain per ear, weight of 100 seeds, yield, analysis economic. Based on the results obtained, it was determined that the foliar fertilizer based on brassinosteroids applied in the T2 treatment with a dose of 20 g / ha, showed the highest averages in the variables number of grains per ear, number of rows per ear, weight of 100 seeds (g) and yield (kg / ha). Regarding the variables plant height (m) and ear length (cm), treatment 4 in a dose of 40 g / ha (GIB + INDOL + BRASSI), showed the highest averages with 2.58 and 20.35 cm respectively for these variables. There were no significant differences for the treatments applied in the variables: insertion height from ear to ear. As for the economic analysis, the greatest net benefit was obtained by treatment 2 in a dose of 20 g / ha (GIB + INDOL + BRASSI) with $ 1,303.58.

• Autor Principal: Vera Litardo, Arturo Alejandro (author)
• Formato: bachelorThesis
• Publicado: 2020
• Subjects: Fertilización; Rendimientos; Hormonas; Evaluación
• Acceso en liña: http://dspace.utb.edu.ec/handle/49000/7978