Vol. 11 No. 2
Relative abundance of pollinators, foraging activity of bee species and yield performance of okra at Dhaka (Bangladesh)
Author(s): M. A. HASNAT, S. SARKAR, M. S. HOSSAIN, I. F. CHOWDHURY, M. A. MATIN
Abstract: A field experiment was conducted at the experimental field of Sher-e-Bangla Agricultural University (SAU), during kharif season of May, 2011 to September, 2011 with a view to find out the abundance of pollinators, foraging activity and yield of different varieties of okra in a Randomized Complete Block design with three replications where experimental treatments included four okra varieties (T1 = Metal, T2 = BARI Dherosh 2, T = Munmun 45, T3 = Sarosh 2). Major pollinators 1 2 3 4 namely Apis cerana (hymenoptera), Papilio demolius (Lepidoptera), Desmocerus californicus dimorphus (coleoptera) and Ceria dimidiatipennis (dipteral) of insect orders were found during the flowering period. Hymenoptera and Lepidoptera were the major pollinators visiting okra flowers and peak of foraging activity during 9-11 am. Among the tested varieties, Munmun45 (T3) was superior in case of yield performance by producing the highest number of fruits per plant (41) and 3 fruit yield (11.23 t ha -1) while Sarosh2 (T4) produced the lowest number of fruits per plant (29.33) resulted in lowest fruit 4 yield (6.8 t ha -1).
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