Abstract:
The effect of three seed treating chemicals viz. Provax, Brine solution,
Rovral 50WP and one Biofungicide viz. BAU- Biofungicide were employed
against Alternaria blight of mustard caused by Alternaria brassicae and
Alternaria brassicicola. Three varieties viz. var. BARI-6, Tori-7 and SAUShorisha-l
were used in this study. The field experiment was conducted in
the farm of Sher-e-Bangla Agricultural University, Dhaka and laboratory
experiment was conducted in the seed health Laboratory, Department of
Plant Pathology, Sher-e-Bangla Agricultural University, Dhaka-1207 during
the period of November 2008 to July 2009. Among the seed treating
chemicals, Rovral 50WP showed the best performance in reducing disease
incidence and severity as well as increase seed yield. Again application of
Rovral 50WP gave best result in terms of for reduction of number of pod per
plant, pod length (em), number of branch per plant, 100 siliqua weight (g)
and 1000 seed weight (g). BAU- Biofungicide also showed promising
performance in controlling Alternaria blight of mustard and reduced 36%
and 53% disease incidence and disease severity respectively over untreated
control. BAU-Biofungicide may be recommended for as an alternative
means of chemical fungicide such as Rovral 50 WP for controlling
Alternaria blight of mustard.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka
in Partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
PLANT PATHOLOGY
