Influence of cropping systems on foot and root diseases of winter wheat: fitting of a statistical model.

摘要

In a series of trials carried out between 1986 and 1993 in France, 503 winter wheat plots were assessed at heading for eyespot (Pseudocercosporella herpotrichoides), take-all (Gaeumannomyces graminis var. tritici) and sharp eyespot (Rhizoctonia cerealis). For each disease, a model was developed to estimate disease risk as a function of environment and cropping system. Eyespot depended on environment, crop succession, soil tillage (inversion vs. non-inversion), sowing date and tiller number per plan