09-08-2013, 03:32 PM
Screening of tomato germplasm against early blight of tomato under field conditions
ABSTRACT
Fifteen tomato germplasm were screened under field conditions against early blight disease and it was found that no germplasm was immune to the disease. Pusa Ruby, Indam Vaishali and P-2 showed susceptible reaction, while Maharaja 3004, H-86, GS-2082, Navodya, DVRT-2, S-22, Karina, Vijeta and Centuary -12 showed moderately susceptible reaction and CO-3, Tomato Cherry and Heem Sohna was found moderately resistant against early blight disease of tomato. However, an experiment was conducted to screen the different tomato germplasm against early blight disease under artificial conditions and it was observed that maximum lesion size (mm) was recorded at 17days after inoculation in Pusa Ruby and minimum in CO-3.