| dc.description.abstract | The experiments were conducted in the field and laboratory conditions. The field
experiment was conducted at Golapgonj, Sylhet and the laboratory experiment was
conducted in plant pathology laboratory, Department of Plant Pathology and Seed
Science, Sylhet Agricultural University, Sylhet to identify the seed-borne fungal
pathogens and their control. In laboratory experiment, different fungal pathogens were
detected from the collected seed sample by Blotter test method. The detected pathogens
were namely Aspergillus spp., Penecillium spp., Cercospora spp., Rhizopus spp. and
Fusarium spp. Before sowing the seeds were treated with seven different treatments such
as T1: Bavistin 50WP, T2: Secure 600WP, T3: Neem leaves extract (1:4 w/v), T4: Biskatali
leaves extract (1:4 w/v), T5: Bavistin 50WP + Secure 600WP, T6: Neem leaves extract
(1:4 w/v) + Biskatali leaves extract (1:4 w/v) and T7: control. The treatment T5: Bavistin
50WP + Secure 600WP were found to be the most effective in controlling seed-borne
fungi. In case of field experiment similar seven treatments were used as spray solution.
The lowest disease incidence (5.87%) and disease severity (2.30) was found in treatment
T5: Bavistin 50WP + Secure 600WP and gave better response in yield (1482.67 kg ha-1).
In case of treatment T5: Bavistin 50WP + Secure 600WP has also given the best result
regarding yield contributing characters such as plant height (78.74 cm), pod length
(10.24cm), number of seeds pod
(9.00) and 1000 seeds weight (31.40 g) as compared to
other treatments.
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The results of the present studies suggested that the integrated use of these treatments
effectively minimizing Cercospora leaf spot disease severity and increase its yield. | en_US |
