tailieunhanh - Isolation, cultural and morphological characterization of Alternaria dauci causing alternaria leaf blight of carrot
Alternaria dauci affected leaves of carrot crop collected from farmers field and Isolated on Potato dextrose agar (PDA) produced profuse growth, olivaceous/greenish-brown to black, flat mycelial growth, irregular to circular shaped colony with smooth margins, flat elevation, thick texture, poor zonation and good to excellent sporulation. Morphological characteristics of Alternaria dauci, revealed septate mycelium, dark brown muriform conidia of the size 45-70 x 10-22 µm. and the beak measured of 30-120 µm. The conidia possessed about 3-7 horizontal and 1-2 vertical septa and the conidiophores measured about 28-85µm in length and in breadth. | Isolation cultural and morphological characterization of Alternaria dauci causing alternaria leaf blight of carrot
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