This study aimed to explore the marketing channel, marketing cost and marketing margin and problems associated with fish marketing in order to provide recommendations for efficient fish marketing system in Barisal city, southern Bangladesh. Data were collected from seven fish markets of Barisal, southern Bangladesh including Port road fish market, Taltoli bazar fish market, Chaumatha fish market, Notullabad bus stand fish market, Kasipur bazar fish market and Bazar road fish market. Both primary and secondary data were used during 1 year study period from May, 2011 to April, 2012. Primary data were collected through field surveys and pre-structured questionnaire was used for interviewing of 10 organizers, 20 aratdars (commission agent), 50 fish traders and 100 consumers. Secondary source of information consists of published materials such as journals, textbooks, newspapers and also from interviewing different government and non-government officials and members of various fisheries related cooperative societies. The results of this study revealed 11 fish marketing channels in Barisal city's fish marketing system. The average marketing cost ranged from 4.15% to 8.33% (6.76±0.98) % of the final retail price. The highest and lowest average fish price were recorded as USD 7.07/kg and USD 1.03/kg for giant fresh water prawn and silver carp, correspondingly. Intermediaries' marketing margin on different species' marketing fluctuated from 29.6% to 50.28% (39.38±5.22) % for silver carp and brown shrimp marketing, respectively. Establishment of modern fish landing center and retail markets near the fish landing port, introduction of government fish shops and insulated and refrigerated fish vans and fish carriers, training of all personnel related to fish marketing about fish handling, quality of fish, hygiene practices, improvement of existing fish market structure, provision for government and private funding assistance for fishers/fish farmer, formulation and enactment of independent act/ordinance for fish landing and marketing are highly recommended.

The study was carried out to find out the effect of zinc (Zn) and boron (B) on growth and yield of okra (BARI Dherosh 1). The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The treatments of the experiment were, T0 (without Zn or B), T1 (20 kg Zn ha-1), T2 (30 kg Zn ha-1), T3 (10 kg B ha-1), T4 (20 kg B ha-1), T5 (20 kg Zn ha-1 + 10 kg B ha-1), T6 (20 kg Zn ha-1 + 20 kg B ha-1), T7 (30 kg Zn ha-1 + 10 kg B ha-1) and T8 (30 kg Zn ha-1 + 20 kg B ha-1) were undertaken to evaluate the best results of the study. The highest plant height was found in T8 (30 kg Zn ha-1 + 20 kg B ha-1) but the highest number of leaves plant-1 was recorded from T7 (30 kg Zn ha-1 + 10 kg B ha-1). On the other hand, the maximum leaf area index, SPAD value, mean fruit weight, fruit length, fruit diameter, fruit dry matter (%), number of fruits plant-1, fresh fruit weight plant-1 , fruit yield plot-1 and fruit yield ha-1 were found in T7 (30 kg Zn ha-1 + 10 kg B ha-1), while the control (T0) showed lowest performance for the respected parameters. It is strongly concluded that 30 kg Zn ha-1 with 10 kg B ha-1 combination may be helpful for okra cultivation in the field level to increase okra production.

The yield and quality of tomato largely depend on soil and climatic conditions and also on variety. Plant growth regulators function as chemical messengers for intercellular communication. In tomato, different growth regulators and zinc play a pivotal role in germination, root development, branching, flower initiation, fruiting, lycopene development, synchronization and early maturation, parthenocarpic fruit development, ripening, TSS, acidity, seed production etcetera. The field experiment was conducted at Sher-e-Bangla Agricultural University Farm, Dhaka, Bangladesh Islam et al.; IJPSS, 32(1): 1-9, 2020; Article no.IJPSS.54344 2 during October 2017 to April, 2018 to evaluate the effect of foliar application of IBA, GA3 and Zn on yield and quality of tomato [1]. Single variety BARI Tomato-14 and foliar application of IBA 5 ml/L, GA3 5 ml/l and Zn were used to conduct this experiment. The experiment was laid out in Randomized Complete Block Design (RCBD) having three factors and replicated three times. Data were collected on chlorophyll content of leaf, number of flowers cluster per pant, number of fruit per plant, yield per hectare, Vitamin-C content and TSS% content. A statistically significant variation was recorded in terms of the above characters about yield and quality of tomato. All the characters shows maximum result in treatment of T 7 (IBA+GA3+Zn).The treatment combination of T 7 (IBA 5 ml / L, GA3 5 ml / L and Zn 1 kg/ha) and T 4 (IBA 5 ml / L, GA3 5 ml / L) gave the maximum yield (100.00 t/ha) and the minimum yield (39.75 t/ha) was found from the treatment combination on T 0 (control). The highest Vitamin C content (113.10 mg/100 gm) and highest TSS (%) (7.000) were found from T 7 (IBA 5 ml / L, GA3 5 ml / L and Zn 1 kg/ha) than that of control under present experiment. So, it can be concluded that treatment combination of T 7 (IBA 5 ml / L, GA3 5 ml / L and Zn 1 kg/ha) is the best for yield and quality of tomato and can be tested further under different field conditions. Original Research Article