These studies were carried out simultaneously with the study carried out on lines begun in 2001. The maize (corn) hybrids being developed and varieties marketed by Maïsadour Semences were analysed in each test series in order to determine whether or not tolerance to Fusarium is hereditary, and to determine the characteristics of the different varieties.

A network of experiments throughout Europe

The study concerned 96 hybrids, both early and late varieties tested in the extensive experiment network (comprising over 60 locations) in a wide variety of situations.

The effects of fusariosis depend largely on the climate. The occurrence of F. graminearum is therefore observed mostly on early hybrids and F. Liseola mostly on late hybrids.

To characterise the tolerance of the different varieties, three types of analysis were routinely carried out each year on several hundred samples from the network (1205 analyses carried out over four series of studies): results for attacks on ears (Ear Visual), sanitary analyses of grains and dosages of toxins produced by Fusaria

Ear Visual?