Rendimiento de híbridos de maíz en respuesta a la fertilización foliar con bioestimulantes

The use of biostimulants has been an agricultural strategy for increasing crop yields and quality. The objective of this work was to evaluate the effect of biostimulants on the yield and components of corn hybrids (Zea maysL.) intheHigh Valleysof the State of Mexico. The sowing was carried out during the spring summer 2017 cycle in three environments (Jocotitlán, Temascalcingo, Jilotepec). Eleven cornhybrids were evaluated(TSIRI PUMA; ATZIRI PUMA; TLAOLI PUMA; IXIM PUMA, H-50, #46#48; H-66; H-76; H-77; H-47AE and H-49AE). The foliar treatments with biostimulants were the following: B1=control; B2=Eurobor; B3= Euroligo; B4= Eurodual; B5= Euroalg. Evaluations included: grain yield, straw production, rows per cob, grains per row, grains per cob,volumetric weight, weight of 200 grains, and cob diameter. For all variables, a combined analysis of variance, a mean comparison test (Tukey) and a correlation analysis (Pearson) were performed. Between environments, hybrids and biostimulants there were significant differences. In Temascalcingo, higher grain yield was observed with 13.5 tha-1. Thehybrids had yields higher than those of studies reported in the literature, and thegenotypes H-66, H-50 and H-76 stand out in the present study. Biostimulants increased grain yield from 7.9 to 11.4%, with respect to the control, and positively affected the agronomic components of the hybrids evaluated. Biostimulants are an alternative in complementary fertilization to increase production in the cultivation of corn El uso de bioestimulantesha sido una estrategiaagrícolapara aumento del rendimiento y la calidad de los cultivos. El objetivo de este trabajo fue evaluar el efectode bioestimulantesen el rendimientoy en los componentes de híbridos de maíz (Zea maysL.) en Valles Altos del Estado de México. La siembra se realizó durante el ciclo primavera verano 2017 en tres ambientes (Jocotitlán, Temascalcingo, Jilotepec).Se evaluaron once híbridos de maíz (TSIRI PUMA; ATZIRI PUMA; TLAOLI PUMA; IXIM PUMA, H-50, #46#48; H-66; H-76; H-77; H-47AEy H-49AE). Los tratamientos foliares con bioestimulantes fueron los siguientes: B1=testigo; B2=Eurobor; B3=Euroligo; B4= Eurodual; B5= Euroalg. Las evaluaciones incluyeron: rendimiento de grano, producción depaja,hileras por mazorca, granos por hilera, granos por mazorca, peso volumétrico, peso de 200 granos y diámetro de mazorca. Para todas las variables se realizó un análisis varianza combinado y se realizó una prueba de comparación de medias (