Wheat Section, Department of Plant Breeding, P A U., Ludhiana, 141004, India
Tehospores of Tilletia indica causing Karnal bunt disease of wheat when floated over water, staited germinating from IS Octobei onwards to March under field conditions. Climatic conditions were favourable for the disease at vulnerable stage (ear emergence). Prolonged period of fog/rain for 20 days in the month of December, pie-poned the teliospore germination and the spondia, lost the potential to cause the disease after a lapse of 45–50 days Nutritional component of the medium in which sporidia were cultured, affected the disease causing potential
Teliospore, Tilletia indica, Triticum aestivum.
