Mitali Mukherjee a* & Ramesh Kumar Pandey b
aDepartment of Botany, Jamshedpur Women`s College, Jamshedpur, Kolhan Univ., Jharkhand.
bUniversity Department of Botany, Ranchi University, Ranchi, Jharkhand, India.
Received : 12th May, 2015; Revised : 17th July, 2015
Abstract : The present investigation deals with the comparative study of percentage disease index in two cultivars of tomato ( Pusa Ruby and S-22 ) infected with Alternaria solani. Study of ” Early Blight Disease “ of plant is very important as it causes much more loss in food crops like potato, tomato etc. In humid condition this disease causes fruit rot of tomato in field, storage and transits. Alternaria solani is the fungus which is responsible for the disease, belongs to the form class Deutermycetes. In this research two cultivars of tomato were taken and inoculated with pure culture of Alternaria solani, maintained in P D A slant and after observing the symptoms, compared between two and Percentage Disease Index was calculated.