| identification of physiological races of blumeria graminis f. sp. tritici and evaluation of powdery mildew resistance in wheat cultivars in sistan province, iran. | powdery mildew of wheat caused by blumeria graminis f. sp. tritici (bgt) is one of the most important fungal diseases in iran. during the years 1998-2001, wheat fields in sistan province were surveyed and powdery mildew infected samples were collected from various areas and transferred to the laboratory. in the greenhouse, fungal spores were purified and inoculated onto susceptible wheat cultivars using single pustule and single spore procedures. selected pure isolates were inoculated onto the f ... | 2003 | 15151289 |