1Department of Plant Pathology, Chimanbhai Patel College of Agriculture, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Gujarat, India
2Director of Extension Education (Retd.), Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Gujarat, India
*Corresponding author: shipra08sharma@gmail.com (ORCID ID: 0000-0002-7308-6306)
Online Published on 27 July, 2023.
Wheat is one of the essential cereals and is highest produced grain in the world after corn and rice. It is the second most important crop in India, next to rice. Wheat stem rust is the primary biotic constraint to wheat production, and it is essential to understand and analyse the disease in terms of pathological and biochemical responses. Formation of white flecks on the leaf surface seven to eight days post-inoculation was the first symptom of disease initiation. Number of pustules and uredia per centimeter square increased as time progressed along with the disease. The A-9-30-1, with a mean number of pustules and uredia of 25.25 and 6.45 × 104 per centimeter square, respectively, was highly susceptible to recording higher values during the entire study period, followed by Agra local (28.93 mean no. of pustules and 7.25 × 104 uredia per centimeter square) and Kharachia (31.55 mean no. of pustules and 7.4 × 104 uredia per centimeter square). No flecking, pustules, or uredia were observed in the three varieties viz., GDW 1255, GW 496, and GW 451.
• A-9-30-1 variety shows maximum susceptibility towards Puccinia graminis tritici.
• Three varieties show complete resistance to stem rust disease.
Wheat, Stem, Rust, Uredia, Pustules, Resistant, Susceptible
