Vol. 12, Issue 2 (2023)

Author(s):
Bimla, RK Bagri and Lalita lakhran

Abstract:
Among the fungal diseases infecting tomato crops, early blight caused by Alternaria solani (Ellis and Martin) Jones and Grout is one of the most catastrophic disease causing accountable losses. Further, all of the tomato cultivars presently under cultivation have succumb more or less to early blight disease. Therefore, the present studies were undertaken for the pathogenic variability, the twelve isolates was recorded significant variation in per cent disease intensity (11.85- 78.21%) at 60 DAS and (19.92-89.10%) at 90 DAS. Under pot conditions isolate Aljp-2 was found highly pathogenic among all isolates and recorded highest per cent disease intensity. Lowest per cent disease intensity was observed by Altk-8 isolate in both the conditions of observations.