ROLE OF PUCCINIA-RECONDITA ROB. EX. DESM. F SP. TRITICI SPORES MIGRATION IN FUNGAL POPULATION DEVELOPMENT AND SPREAD OF EPIPHYTOTIES

In connection with determination of the role of Puccinia recondita Rob . ex Desm. f. sp. tritici spore migration for the variability of patho gen population and epiphytoty development analysis of synoptic weather situation biological control of air masses, and comparison of phenoty pe composition of population samples were performed. The possibility o f spore transportation by cyclonic air masses from Turkey to South par t of CIS (former U.S.S.R.) was estimated. Significant difference betwe en European and Asiatic (Northern Kazachstan and Western Syberia) fung us populations in terms of their phenotype composition was determined. This difference was explained by low probability of spore transportat ion from Europe to Asia by air masses.