Abstract
Creole maize races have economic and socio-cultural importance in the Mexican population. However, due to climate change, the presence of pests and the urbanization of the land, make it difficult to conserve this plant germplasm. The objective of this study was to evaluate the physiological quality of landrace seeds treated and not treated with a biofilm and frozen for 30 days under in vitro conditions. The variables evaluated were: imbibition rate, standard germination, germination speed index and the percentage of humidity and the statistical significance was analyzed by means of a Tukey test. The results of the imbibition rate, in the seeds treated and frozen at -85°C presented higher absorption percentages with respect to the other treatments, with no statistical difference. A tendency was found in the reduction in the germination of the native corn grains treated and frozen at temperatures of -20°C and -84°C. No increase in quality was found in the seeds treated with the cactus-based biofilm.
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