Abstract:
Effect of ten selected treatments viz. T
vii
1
(Control). T2 (Knowin 50 WP). T3
{Score 250 b.C), T.1 (Controll 5 EC), T5 (Proud 25 EC). T6 (Tilt 250 EC). T7
(Folicur 250 EW). T8 (Sunvit 50 WP). r, (Cupravit 50 WP) and T10 (Bordeaux
mixture) were studied on sheath blight of rice BRRl 40 during Aman season in the
Farm of Sher-e-Bangla Agricultural University. Dhaka. The lowest number of
sheath blight infected tillers/hill was observed in T
(Tilt 250 EC) where the
highest number was found in control (T
6
1
). The highest percentage of relative
lesion height (%RLH) was observed in Control (T1) and lowest was found in T6
(Tilt 250 EC) plot. AU the chemicals significantly reduced percentage of sheath
area diseased over control except Bordeaux mixture.The highest lesion
height/sheath was obtained from the treatment T1 (Control) under field condition
and the lowest was found in T
(Tilt 250 EC) plot. All the treatments influenced
yield contributing parameters of rice. The treatment T6 (Tilt 250 EC) resulted 6.07
t/ha grain yield which was 6 l .86o/o increased over untreated control. Tilt 250 EC is
the best fungicide.
