Resumen

ALONSO-SANCHEZ, Homero et al. Technified gravity irrigation in corn hybrids for the High Valleys. Rev. Mex. Cienc. Agríc [online]. 2025, vol.16, n.3, e3686.  Epub 12-Ago-2025. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v16i3.3686.

The technical design of gravity irrigation represents an opportunity for water savings and is an option in conditions of scarcity to improve the production of the corn crop. This work aimed to assess the effect of three moisture management conditions on the agronomic variables of white corn hybrids for the High Valleys of central Mexico. The experimental design consisted of a factorial arrangement of 10 hybrids (G1-G10) under three moisture (M) conditions, traditional irrigation (M1), technified irrigation (M2), and rainfed conditions (M3) in a design of three randomized complete blocks, established at the Cuautitlán Faculty of Higher Studies of the National Autonomous University of Mexico in Cuautitlán Izcalli, state of Mexico. The overall mean grain yield was 8.28 t ha-1 with a water utility of 1.5 kg m-3; it was 7.9 t ha-1 and 1.2 kg m-3 under traditional irrigation, 8.6 t ha-1 and 1.4 kg m-3 under technified irrigation, and 8.26 t ha-1 and 1.8 kg m-3 under rainfed conditions, respectively. The CUXI PUMA hybrid resulted with the highest productivity (9.95 t ha-1 and 1.7 kg m-3). The highest yield was obtained under technified irrigation; however, under rainfed irrigation, hybrids showed greater water utility. Under conditions of water restriction, it is advisable to produce corn under rainfed conditions because irrigation did not significantly increase yield, this would be expected in soil and climatic conditions similar to those of this experiment.

Palabras llave : Zea mays; marginal water productivity; rainfed conditions.

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