INFLUENCE OF NUTRIENTS SOURCE ON RADIAL GROWTH OF MACROPHOMINA PHASEOLINA (TASSI.) GOIDM. SURYA PRAKASH REDDY, M. SANTHA LAKSHMI PRASAD, SUBHASH SRI SANJAY MALEMPATI, JAWAHARLAL AND K.T. RAMYA
Sesame (Sesamum indicum L.) is oil seed crop of India and asian countries mostly preferred due to rich in its edible oil content (50%) and protein (23%) and having sufficient carbohydrate (15%). Macrophomina phaseolina is a soil borne phytopathogenic fungus having a wide host range of about 500 cultivated and wild plant species worldwide. In the present investigation nineteen nutrients were tested against Macrophomina phaseolina at 100, 150, 200 and 250 ppm concentrations that enhanced mycelial growth but lowest mycelial growth was recorded on Monoammonium phosphate and Ferrous sulphate over control. All the nutrients significantly influenced growth of test fungi when compared with control under In vitro conditions.