Published in Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1
Written by Spasimira NEDYALKOVA, Minka KOLEVA
In the experimental field of Field Crop Institute - Chirpan, 12 varieties of durum wheat selected by the institute are sown annually.The dynamics of the appearance and development of leaf spots during the growing season were monitored. The main method for determining the species composition of fungal pathogens is the comparative-morphological one. Symptoms are described on naturally infected durum wheat plants and compared with those on common wheat caused by the respective pathogens. The identification was made by direct observation of the structures of the pathogens formed
on plant tissue and during cultivation in nutrient media - potato-dextrose agar, water agar, malt extract agar, oat agar, Synthetischer nährstoffarmer agar, Shear's solution and is based on a set of morphological and cultural characters. The characters with the highest taxonomic value were taken into account: morphology and sizes of asexual and sexual mating, colony morphology. The most widespread on durum wheat are the fungal species that form a mass sexual stage in the conditions of Bulgaria: Pyrenophora tritici-repentis, Parastagonospora avenae f. sp. triticea, Monographella nivalis, Cladosporium herbarum.
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{simplepopup popup="false" name="Citation53"}NEDYALKOVA S., KOLEVA M. 2026, IDENTIFICATION OF PATHOGENS CAUSING LEAF SPOTS ON DURUM WHEAT VARIETIES IN BULGARIA AND DESCRIPTION OF THEIR SYMPTOMS. Scientific Papers. Series A. Agronomy, Vol. LXIX, Issue 1, ISSN 2285-5785, 437-442. {/simplepopup}