Występowanie patotypów grzyba Ascochyta pisi (Lib.) w rejonie olsztyńskim [Occurrence of pathotypes of Ascochyta pisi (Lib.) in the Olsztyn district]

Abstract

The causal agents of leaf and pods spot-pot of peas and field peas in the Olsztyn district was the fungus Ascochyta pisi (Lib.). Investigated isolates of A. pisi differed by macroscopic and microscopic features. From diseases leaves and pods of peas and field peas obtained also saprophitic fungi among which Alternaria alternata, Botrytis cinerea, Cladosporium cladosporioides, Epicoccum purpurascens, Stemphylium botryosum, Sordaria fimicola and mycelia starilia were dominated. In the study of the identification and distribution of pathotypes of A. pisi five pathotypes were identified among which pathotype 2 were dominated. The identified the pathotypes differed by macroscopic and microscopic features.