Özet:

The fact that F. culmorum in grain is transported by the seed or the soil pathway causes fide and headache (FHB) and also threatens the health of humans and animals due to the toxins it dissolves in the grains has revealed the importance of the pathogen both in the world and in Turkey. The purpose of this study is to identify the effectiveness of non-licensed tebuconazole+metalaxyl-M (Maxim XL 035) and fludioxonil+metalaxyl-M (Certigor 050 FS) fungicites on F. culmorum. The sensitivity to fungicides of the pathogen is determined by the patogenicity known F. culmorum (S-14) isolate and the patogenic development in the dietary environment of Potato Dextrose Agar (PDA) is determined by the patogenicity and the patogenicity is determined by the patogenic development in the dietary environment (EC50). The tests of fungicide effect on the pathogen were conducted in vitro and in vivo conditions. In the trials, the seeds infected with the S-14 isolate of the pathogen were used and obtained from the non-infected flamura-85 variety. In vivo tests were performed in the form of fertile seeds planted in sterile soil by fungicides or in the form of fertile seeds planted in fungicides by infection of the pathogen in 1x106 sports/ml dose. In the in vitro tests, the EC50 values for patogenic tebuconazole+metalaxyl-M and fludioxonyl+metalaxyl-M fungicides were determined at 0.55 and 1.57 μg/ml respectively. In comparison with both fungicitis controls, a significant difference has been found between grinding, root and choleoptil lengths and severity of the disease. In vitro tests again found that both fungicides had a significant difference in terms of plant length, age and dry weight, the severity of the disease.

Anahtar Kelimeler: