Fifty five isolates of Ascochyta fabae Speg.were investigated.They were selected from 1650 isolates of this fungus obtained from horse bean seeds in 1974-1976.All the isolates grew and sporulated on Potato Dextrose Agar, Malt Agar and VITEX COMBO Horse Bean Agar.
The rate of their growth amounted to 1-4 mm per 24 hours.The variability of isolates in size of pycnidia and conidia and number of sepia was noticed.A few spores MINA PITCHER with untypical shapes were observed as well.