Abstract:
The efficacy of some selected fungicides and botanicals were evaluated against
Alternaria brassicae and Alternaria brassicicola causing leaf blight of mustard
(var. BARl sharisha-15). Experiments were conducted at the farm of Bangladesh
Agricultural Reasearch Institute, Gajipur, Joydebpur during rabi season from the
month of October 2009 to March 2010. Three fungicides viz. Alphadeone,
Aristodeone, Movral and three botanical extracts viz. Garlic clove extract, Tulshi
and Dhutora leaf extract were employed in the experiment. Among the fungicides
and botanicals tested, movral showed the best performance in reducing disease
severity as well as increasing seed yield against gray blight of mustard. Leaf
infection by Alternaria sp was reduced by 51.17 .%and seed yield was increased
by 20.64 % over control by the application of Movral. No promising results were
shown by the botanicals against leaf 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
