ABSTRACT

Some preconditions are absolutely essential for preharvest production of my cotoxins. The foremost are the availability of toxigenic fungal strain, suscep­ tible host, and favorable agroclimatic niche. In standing crops, host-fungusenvironment interaction is critical in predisposition of mycotoxin contamination. Drought and/or temperature stress at critical times in the life-cycle of the suscep­ tible crops is one of the dominant factors. Agronomic practices and insects play major role in exacerbation of mycotoxin contamination under field conditions [3,4]. Once the crop becomes infected under field conditions, the fungal growth continues usually with increasing vigor at postharvest stages and in storage.