Fungi colonizing various parts of parsnip Pastinaca sativa L.

ZOFIA MACHOWICZ-STEFANIAK, EWA ZALEWSKA

Abstract

The occurrence and harmfulness of fungi towards Pastinaca sativa L. parsnip of White Gem cultivar were determined in 2005–2007. The mycological analysis of schizocarps with spots and without spots, seedlings and plants at the time of harvest was conducted every year. The fungi were identified on the basis of etiological symptoms visible on the infected parts of plants and on the basis of the results of mycological analysis. Parsnip schizocarps were colonized by various fungi species. Larger frequency of occurrence and biodiversity of fungi species on plants at the time of the harvest was found as compared to the seedlings. The fungus Itersonilia pastinacae, recognized as a cause of black cancer of parsnip in the regions where this plant is cultivated, was isolated for the first time in Poland. Alternaria alternata, A. raphani, Fusarium oxysporum, F. equiseti, F. solani and Stemphylium botryosum belonged to the species of fungi frequently isolated from various parts of this plant. Key words: parsnip, fungi, occurrence
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