Influence of the Mode of Tillage on Diseases of Culm Base in some Winter Wheat varieties, Oats and Spring Wheat

The in¯uence of simpli®ed soil cultivation techniques on the complex of culm base diseases was tested in seven varieties of winter wheat. The results were compared with those obtained in spring wheat Ismena and oat variety Dragon. A 1-year intermission in growing cereals after conventional models of tillage (rye; rape; winter wheat) was found to have brought about an intensi®ed occurrence of culm base diseases. However, with ploughless cultivation the infection was less. Among the fungi species tested there was found a high percentage of Fusarium culmorum and Fusarium equiseti, which occurred to a considerably lower degree in ploughless treatments. The wheat varieties Sakwa and Mikon were found to be less sensitive to the culm 2base diseases.