Histopathological studies of Alternaria alternata associated with carrot seed, Daucus carota L.

Abstract

Carrot is an important root vegetable crop of Rajasthan. The crop suffers severely from various seed borne diseases. Alternaria leaf blight is an important disease of carrot. All seed components viz. pericarp, endosperm and embryo were employed by two methods viz., component planting and whole mount method. Maximum (4-56 and 3-43%) percent infection of A. alternata was observed in pericarp followed by endosperm (2-42 and 1-39%) and it was absent in embryo (0 and 0%) in both the methods.