Abstract

AGUAYO-GONZALEZ, Dulce J. et al. Natural production of corn smut [Ustilago maydis (DC) Corda] in the state of Aguascalientes. Rev. Mex. Cienc. Agríc [online]. 2016, vol.7, n.5, pp.1043-1050. ISSN 2007-0934.

The corn smut has nutritional characteristics as high levels of dietary fiber, protein, amino acids, oligosaccharides, essential fatty acids, vitamins, minerals and phenolic compounds, which makes it can bring significant benefit to nutrition. This research aimed to evaluate the natural production of corn smut in the state of Aguascalientes, Mexico. Seven municipalities where the samples are completely made randomly by convenience with an area of 500 m2 per hectare for each treatment, data were obtained when the corn was about to be harvested and the fungus reached the development of guts for evaluated sampling known treatments. The variables evaluated were: severity index (IS), percentage of incidence (PI), grams per infected ear of corn smut (GMI) and yield per hectare (RH). The results were analyzed by analysis of variance, Tukey test (p= 0.05) and Pearson linear correlation. The treatment 3 (yellow native seed temporary) in the village of Ejido Peñuelas in the Municipality of Aguascalientes, was the best and significantly different from all other treatments, as obtained the highest yield per hectare (90.554 kg ha-1) and he presented a greater severity index infected ears (18.67%). Native seeds showed higher production of corn smut.

Keywords : common corn smut; incidence; irrigation; severity; time.

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