Research Article Efficacy of fungicides used for controlling black point disease in wheat crop

The study was conducted to evaluate the efficacy of fungicide i.e T -2 (propiconazole @ 500 ml/ha), T-3 (Metiram @ 625 g/ha) T-4 (Difenaconazol @ 325 ml/ha) and T-5 (Propineb @ 1250 g/ha) used for controlling black point ( Bipolaris sorokiniana) of wheat at Adaptive Research Farm, Gujranwala during Rabi 2010-11; 2011-12 and 2012-2013 compared to T-1 (Control). Minimum grain infection was recorded in metiram (10.51%) followed by difenaconazol (22.50%); propiconazole (28.07%) and Propineb (27.50%) compared to untreated control (49.02%) during 2011-12. Metiram (11.05%) showed significant effect followed by difenaconazole (24.47%); propineb (27.41%) and propiconazole (29.55%) however the highest disease was recorded in control (50.18%) during 2011-12. However significantly minimum infection on grain was recorded by metiram (9.32%) followed by difenaconazole (21.82%); propiconazole (23.03%) and propineb (25.06%); compared to control (48.07%) during 2012-13. During 2010-11, 1000 grain weight of Metiram (47.33g) was statistically non significant with difenaconazole (44.21g), showed significant difference with propineb (42.79g) compared to control (37.20g). During 2011 -12 maximum weight was recorded by metiram (46.38g) differed statistically wit h difenaconazole (42.09g); propiconazole (42.05g) and propineb (40.67g) compared to (36.68g). During 2012-13 statistically significant difference in 1000 grain weight was recorded by metiram (44.28g); however difenaconazole (41.73g), propiconazole (40.64g) and propineb (40.07g) were non significant with each other compared to control (36.00g). Non significant effect in yield (t/ha) was recorded in Metiram (4.73) with difenaconazole (4.42) but differed statistically w ith propiconazole