Published in Scientific Papers. Series B, Horticulture, Volume LIX
Written by Senem TÜLEK, Fatma Sara DOLAR
Carrot ( Daucus carota var. sativus) is widely planted in the Ankara provinces. In order to identify species of Alternariacausing disease on root and foliage, surveys of carrot production areas in Ayaş and Beypazarı districts of Ankaraprovince between June and November in 2008–2009 were undertaken. Sixty isolates of Alternaria spp. have beenobtained from necrotic lesions on the leaves and roots. Alternaria radicina, A. alternata, A.tenuissima and A.dauciwere isolated from symptomatic plants collected in our survey and the pathogenicity of fungi have been tested. Speciesidentification was done based on culture and conidial morphology, growth rate and rDNA sequences. Pathogenicity testsuch as hypocotly test, carrot disc method, 6–8 weekly seedling andplant test were conducted Isolates of A.radicina,A.dauci were shown high virulence although Alternaria alternata were found as moderately or low virulence.
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Alternaria blight
