Karnal bunt status of wheat in Haryana
Beniwal, M.S.; Duhan, J.C.; Karwasra, S.S.; Gupta, A.; Chhabra, M.L.; Yadav, M.S.
Crop Research 14(1): 155-164
Post-harvest surveys were carried out for seven crop seasons (1988-89 to 1994-95) to find out the Karnal bunt status of wheat in Haryana State, India. The incidence and range of infection of Karnal bunt (Neovossia indica) was higher in the districts of humid zone than dry zone districts of Haryana. The crop season 1990-91 was found to be most favorable for Karnal bunt disease during which maximum (44.97%) samples were infected with infection ranging between 0.05-5.9% and average infection of 0.195%, whereas in subsequent years there was a gradual decrease. Out of total 2888 samples analysed during seven crop seasons, 24.82% samples were infected with an overall average infection of 0.07%. The varieties, namely, HD-2329 and HD-2009 were found highly susceptible with maximum per cent infected samples and average infection, respectively, whereas varieties viz, WH-283, WH-291, WH-542 and HD-2285 showed fairly high degree of resistance against Karnal bunt under natural field conditions. This study highlights the importance of seed production programme to be taken up in comparatively less disease prone zone of the state.