Análisis de registros históricos de recibo de granos para Fusarium spp en híbridos GM y NO-GM de maíz duro

ARNEODO, J. D; MARINI, D. C.; GALDEANO, E.; MENEGUZZI, N.; BACCI JR, M.; DOMECQ, C.; NOME, S. F.; AND CONCI, L; BONILLA, J; E. GALDEANO

Congreso; XI Congreso Nacional de Maíz; 2018

A.I.A.N.B.A. - Asociación de Ingenieros Agrónomos del Norte de la Provincia de Buenos Aires

Maize production area has been extended from central towards Northern Argentina in the last decades. Warmer climate conditions of this region have led to an increase of pests and disease problems. Among them are the ear rot fungi, mainly Fusarium species, which, apart from yield loss, produce mycotoxin accumulation in corn grains. The aim of this work was to assess incidence and prevalence of Fusarium ear rot in flint maize destined for human consumption, by analyzing 5-year data from three locations in Northern Argentina. A database was consolidated from historical registries of corn receipt from 2010 to 2014 in three storage plants located in 1) Charata, Chaco (S 27°13,651´; W 61°11,779´), 2) Virginia, Tucumán (S 26°45,153; W 64°47,695) y 3) Piquete Cabado, Salta (S 24°49,228´; W 64°10,771´). The analysis showed that prevalence was generally high in the 5 studied years, with incidence values lower than 1%. GMO hybrids showed a better behavior compared to non-GMO ones, except for P30P70 hybrid with Hx event that had less prevalence and incidence than the non GMO, but not significantly different.