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Abstract

Fungal diseases on winter wheat in Transdanubian Region.

Abstract

The dominance of some fungi pathogenic to winter wheat was investigated in the Transdanubian Region of Hungary in 2001-02. In 2001, the rust pathogens, Puccinia recondita f.sp. tritici [P. hordei] and P. striiformis, caused severe infections, while P. graminis f.sp. tritici [P. graminis] occurred only sporadically. In 2002, brown rust infection was lower than that in 2001. P. striiformis was considerable only in 2001, although it did not reach the level of the leaf rust. Infection caused by Blumeria graminis f.sp. graminis [? Erysiphe graminis] was not considerable in 2001. The flag leaves and ears of several species were damaged seriously in 2001, while powdery mildew infection remained low in 2002. The low levels of infection in 2002 were probably caused by the extremely dry weather.