Vol. 10, Special Issue 12 (2021)

Author(s):
Dr. Satyendra Nath Singh

Abstract:
Leaf blight symptom collected from different location on various wheat cultivars showed remarkable variation. Symptoms incited by Helminthosporium sativum on wheat cultivars varied from light yellow to light orange. The maximum colony diameter was recorded in case of isolate H₅ (66.56mm) and minimum in case of H₃ (48.38mm).Regarding dry mycelial weight maximum dry weight was recorded in isolate H₄ (160.60 mg.) and minimum in H₃ (128.25mg.). The maximum number of spores were recorded in isolate H₅ (45.33000/ml.) and minimum in H₃. The purpose of this study to see the variations among the isolates, collected from different locations.