Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

INCIDENCE AND SEVERITY OF BLACK POINT DISEASE OF WHEAT (Pages : 12 - 19)

Black point fungi associated with ten wheat varieties were studied. Seeds of ten wheat varieties of two growing season (time and late sowing) were collected from Wheat Research Center (WRC), Noshipur, Dinajpur. A significant variation was observed in disease incidence and severity in different varieties and sowing date where the highest disease incidence and severity was recorded in Kanchan and lowestr in BARI gam 25. The most common fungus observed from different wheat seeds was Bipolaris sp. However, Alternaria sp. Curvularia sp. Fusarium sp. Aspergillus sp. Epicoccum sp. Rhizopus sp. Nigrospora sp. and Phoma sp. were also associated with the wheat seed. Variety Kanchan showed maximum infection of Bipolaris sp. (54.50%), Alternaria sp. (24.50%), Curvularia sp. (9.00%), Aspergillus sp., (10.75%), Epicoccum sp. (12.75%) and Rhizopus sp. (3.50%). Beside this, variety Shatabdi showed maximum infection of Fusarium sp. (10.25%) where minimum infection of Bipolaris sp. (13.50%) was found in BARI gam 25, Alternaria sp. (9.75%) in BARI gam 28, Curvularia sp. (1.00%) in Prodip and BARI gam 28, Fusarium sp. (1.00%) in BARI gam 25, BARI gam 27, and Prodip, Aspergillus sp. (1.00%) in BARI gam 27, Rhizopus sp. (1.00%) in Prodip, Gourab, Shatabdi, BARI gam 25 and BARI gam 26 and finally minimum Nigrospora sp. was calculated in (3.50%) in Sourav variety, respectively. Black point incidence and severity was always observed higher in late sowing variety compared to time sowing variety. Fungal pathogen associated with wheat seeds also found higher in late sowing varieties than that of time sowing.Download