This study evaluated the effect of contamination by crude oil at different concentrations (0, 0.5, 1, 2, 4 and 8% w/w) in 3 lines of the corn plant (Zea mays) Creole, hybrids H384A and H386A. Variables such as germination, height, stem diameter, and leaf length-width were evaluated at 7, 10, 14 days after sowing (DDS). For each concentration of crude oil, three repetitions were made to obtain 54 experimental units, 18 for each of the lines studied (Criollo, H-384A, H-386A).In the present work we found that the Creole corn and the hybrid H386A, reached 100% germination at 5 DDS, while the hybrid H384A at 4 DDS at the different concentrations. Plant height, stem diameter and leaf size were affected in their development at higher concentrations of crude oil. The hybrid H384A showed a better response compared to the native corn and the hybrid H386A against contamination by crude oil. However, the native corn showed a favorable response to the different hydrocarbon concentrations. It is necessary to carry out more studies related to native maize races, to know the response to environmental contingencies such as oil spills.

Pollution from oil spills affects the soil and crops, so this study evaluated the effect of soil contaminated with diesel at different concentrations on the development of Creole corn (Zea mays). Creole corn seeds were placed in soil contaminated with diesel at different concentrations: 0%, 0.5%, 1%, 2%, 4% and 8%, each treatment had four replicates, the experimental units were kept under controlled laboratory conditions. Variables such as germination percentage, plant height, leaf area, mortality rate, aerial and root biomass were evaluated at 7, 10, 14, 21 and 28 days after sowing. The results indicate that germination was delayed and a delay in the appearance of the sprout was also observed at higher concentrations. Plant height, root area, biomass, and taproot were affected at higher concentrations (p < 0.05). Presence of chlorosis and malformations in the leaves were observed on the ninth day after planting, causing the onset of wilting of the leaves in the 4% and 8% treatments. Exposure to diesel significantly reduces the growth of native corn in its early stages of development.

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El Observatorio de Procesos Territoriales y Paisaje de la Universidad Veracruzana (OPTP), se constituye en un espacio de generación, observación y difusión de conocimiento geográfico, en el programa educativo de Geografía adscrito a la Facultad de Economía. En el OPTP se dará seguimiento a las dinámicas socioespaciales en el estado de Veracruz a diferentes escalas, mediante la definición de indicadores a nivel regional y municipal; que permitan generar bases de datos y representarlos cartográficamente como información útil para analizar dinámicas geográficas y divulgarlas hacia usuarios interesados en el estudio de estos procesos.