Journal of the Bangladesh Agricultural University 2018-12-28T05:43:31+00:00 Prof. Dr. Md. Alamgir Hossain Open Journal Systems <p>JBAU is an official publication of the Bangladesh Agricultural University Research System (BAURES), BAU, Mymensingh-2202. Full text articles available.</p><p>For submission of manuscripts and details of JBAU, please visit the <a title="JBAU" href="" target="_self">website of JBAU</a>.</p><p>Indexed in Master Journal List &amp; Zoological Records (<em>Thomson Reuters</em>), CAB Abstracts, Crossref, Google Scholar, BanglaJOL, TEEL, JournalTOCs, OAJI, ROAD, IDEAS, AgEcon Research, Genamics JournalSeek.  </p> Effect of guava leaf and lemon extracts on postharvest quality and shelf life of banana cv. Sabri (Musa sapientum L.) 2018-12-28T05:42:41+00:00 Parsa Tabassum Shamim Ahmed Kamal Uddin Khan Mahmuda Siddiqua Sabiha Sultana <p>Banana is a common and popular subtropical fruit worldwide. Its postharvest life is very short which causes difficulties in marketing and preserving banana at good condition. To find out a better solution of this problem, the current study was conducted during 2017 in the Horticulture Laboratory, Khulna University, Bangladesh, by following the Completely Randomized Design (CRD) of experiment. Harvested banana fruits, sabri (<em>Musa sapientum </em>L) were treated with guava leaf and lemon extracts at different concentrations. Non-treated fruits were considered as control. Both treated and non-treated bananas were stored in covered paper carton at ambient condition. Postharvest performances of the stored fruits during storage were observed for two weeks. After two weeks of storage, lower changes in color (score 6.77), firmness (score 4.43), less TSS content (8.21%), minimum infection (48.89%) and disease severity (score 3.33) and maximum shelf life (8.75 days) were observed in banana fruit with treatment of T<sub>3 </sub>(guava leaf extract 20% + lemon extract 15%) followed by treatment of T<sub>5</sub> (guava leaf extract 40% + lemon extract 15%) treated fruits. However, the T<sub>4 </sub>treated banana fruit showed maximum vitamin C (1.83 mg/100 g), titratable acidity (0.11%) and reduced sugar (7.13%) after two weeks of storage. In conclusion, combination of guava leaf extract (20% or 40%) + lemon extract (15%) could be suggested for long term storage and maintenance of postharvest qualities at ambient conditions.</p> <p>J. Bangladesh Agril. Univ. 16(3): 337–342, December 2018</p> 2018-12-27T15:59:43+00:00 ##submission.copyrightStatement## Effect of neem leaf and banana pulp extracts on shelf life and quality of mango (Mangifera indica L.) 2018-12-28T05:42:50+00:00 Rabeya Akter Sarmin Shamim Ahmed Kamal Uddin Khan Kanij Fatema Sabiha Sultana <p>The study was carried out to minimize the postharvest loses and extend shelf life of mango fruitby maintaining physico-chemical properties. The variety selected for the study was “Amrapali”. Freshly harvested mango was treated with different concentrations (20% and 40%) of neem leaf and banana pulp extract alone or in combination. Untreated mango was considered as control. All treated and untreated mango was kept into paper cartons at room condition. The treated fruits showed significant differences in case of total soluble solids content, titratable acidity, vitamin C, disease incidence, disease severity and shelf life in comparison to control fruits. Among the treatments, T2 (neem leaf extract at 20%) and T5 (neem leaf extract 40% + banana pulp extract 40%) treatments showed longer shelf life (9.92 and 10.25 days, respectively), slower changes in color (score 2.77 and 2.93, respectively) and firmness (score 2.67 and 2.77, respectively); less disease severity (score 2.93 and 3.57, respectively), disease incidence (46.67% and 60.00%) and lower loss in weight (38.04% and 35.17%, respectively) at 9 DAT (Days after treatment). On the other hand, total soluble solid was highest in T3 (neem leaf extract 40%) treated fruitswith18.73% more Brix at 13 DAT in comparison to control and other treatments. The effectiveness of the treatment T5 (neem leaf extract 40% + banana pulp extract 40%) was meaningful which could be recommended for maintenance of postharvest quality of mango stored in ambient conditions.</p> <p>J. Bangladesh Agril. Univ. 16(3): 343–350, December 2018</p> 2018-12-27T16:01:14+00:00 ##submission.copyrightStatement## Effects of neem leaf extract and hot water treatments on shelf life and quality of banana 2018-12-28T05:42:56+00:00 Mahmuda Siddiqua Shamim Ahmed Kamal Uddin Khan Parsa Tabassum Sabiha Sultana <p>A huge loss of banana occurs due to its shorter shelf life and inappropriate postharvest handling. There is a scarce of effective postharvest practices to combat this situation in Bangladesh. In this context, the current experiment was conducted to assess the effects of hot water (45°C for 2 or 5 minutes) and neem leaf extract (20% or 40%) on quality and shelf life of banana (cv. Sabri). The experiment was carried out in completely randomized design with three replications. Data on physico-chemical properties of banana were collected during storage in ambient conditions for two weeks. After two weeks of storage, the banana treated with 40% neem leaf extract showed longest shelf life (8.33 days), minimum change in color (score 4.88), minimum disease incidence (33.33%) and severity (score 2.23), lower reduction of titratable acidity (0.12%) and lower level of total soluble solid (6.90%). While the banana were treated with hot water at 45°C for 2 min, the treated banana also showed lower color change (score 4.53), longer shelf life (8.33 days), minimum loss of firmness (score 4.67), minimum change in vitamin C content (2.17mg/100g) and lower reduction in titratable acidity (0.11%). Among the combined treatments, the banana treated with the combination of hot water (at 45°C for 5 minutes)and 40% neem leaf extract also exhibited considerably longer shelf life (8.17 days), lower change in color (score 5.00), lower disease incidence (46.67%) and lower reduction in titratable acidity (0.15%). From the study it could be concluded that the fruit treated with 40% neem leaf extract retained the majority of the quality parameters for considerably longer period and thereby it could be recommended for practical use to ensure better and longer storage of banana (cv. Sabri)</p> <p>J.Bangladesh Agril. Univ. 16(3): 351–356, December 2018</p> 2018-12-26T00:00:00+00:00 ##submission.copyrightStatement## Enhancing rice yield in acidic soil through liming and fertilizer management 2018-12-28T05:43:01+00:00 Syeda Ariana Ferdous Mohammad Noor Hossain Miah Mozammel Hoque Sazzad Hossain Ahmed Khairul Hasan <p>The effect of lime and fertilizer application, as the management of soil acidity, on the growth and yield of rice cv. BRRI dhan50 was investigated during <em>Aman </em>rice season at the Agronomy Field Laboratory of Sylhet Agricultural University, Bangladesh. The experiment was consisted of two factors namely lime and fertilizer. There were four levels of lime (0, 0.50, 1.00, and 1.50 t ha<sup>–1 </sup>of CaCO<sub>3</sub>.MgCO<sub>3</sub>) and three levels of fertilizers (control, FYM @ 10 t ha<sup>–1</sup>, and chemical fertilizer @ 100-30-42-4-3-0.4 kg ha<sup>–1</sup> of N-P-K-Ca-S-Zn). The experiment was laid out in a randomized complete block design with three replications where the unit plot size was 4.0 m x 2.5 m. Growth parameters, yield components and yield of BRRIdhan 50 rice increased with increasing lime rate in association of fertilizer in acidic soil. The highest grain yield (2.90 t ha<sup>–1</sup>) was recorded from the application of 1.50 t ha<sup>–1</sup> lime and the lowest (2.06 t ha<sup>–1</sup>) was from control (0t ha<sup>–1</sup>), irrespective of fertilizer. On the other hand, the best effect of fertilizers on grain yield (3.08 t ha<sup>–1</sup>) was found with the application of FYM @ 10 t ha<sup>–1</sup> and the lowest yield (1.59 t ha<sup>–1</sup>) was in control. The treatment combination of lime 1.50 t ha<sup>–1</sup> and FYM (@ 10 t ha<sup>–1</sup> produced the highest grain yield (3.60 t ha<sup>–1</sup>), which was followed by treatment combination of lime 1.50 t ha<sup>–1</sup> and chemical fertilizer @ 100-30-42-4-3-0.4 kg ha<sup>–1</sup> of N-P-K-Ca-S-Zn (3.28 t ha<sup>–1</sup>). Additionally, application of lime and FYM improved the soil fertility and properties of acidic soil for crop production by increasing the pH, organic matter and availability of some essential nutrients. From the study, it was indicated that both FYM and lime could affect to enhance the grain yield of rice in acidic soil.</p> <p>J. Bangladesh Agril. Univ. 16(3): 357–365, December 2018</p> 2018-12-27T16:41:53+00:00 ##submission.copyrightStatement## Adoption of integrated pest management (IPM) practices by the vegetable growers at sadar upazila under Jhenaidah district 2018-12-28T05:43:06+00:00 Md. Mostofa Kamal K. M. Nazmus Saleheen Mst. Sadia Islam Mohammad Bashir Ahmed <p>The purposes of the study were to determine the adoption of Integrated Pest Management (IPM) practices by the vegetable growers and to explore the relationships between the adoption of IPM practices in vegetable cultivation and the selected characteristics of the vegetable growers. Data were collected from randomly selected 101 respondents of the three selected villages of ganna union under sadar upazila of Jhenaidah district using interview schedule by the researchers during May to August, 2017. Appropriate scales were used to measure the variables of the study. Correlation test was used to explore the relationships between concerned independent and dependent variables. Majority (72.28%) of the respondents had medium annual income from vegetable cultivation. Majority (58.42%) of the respondents spent moderate time in vegetable field. About one third (36.63%) of the respondents had low knowledge on IPM practices. Majority (58.42%) of the respondents had very low organizational participation and 38.62% of the respondents had low contact with IPM club and FFS. Most (98.02%) of the respondents had low cosmopoliteness. Most (80.20%) of the respondents had low extension media exposure. About half (51.49%) of the respondents had low training exposure related to cultivation practices. Majority (63.37%) of the respondent had unfavorable attitude towards IPM practices. Majority (70.30%) of the respondents had medium level adoption in commonly used IPM practices in vegetable cultivation. Use of pesticides ranked 1<sup>st</sup>(score 295) as IPM practices compared to other environment friendly practices. Among the fourteen selected characteristics of the respondents, educational qualification, time spent in vegetable field, knowledge on IPM practices in vegetable cultivation, contact with IPM club and FFS, training exposure and attitude towards IPM practices showed positive significant relationships with the adoption of selected IPM practices by the vegetable growers.</p> <p>J. Bangladesh Agril. Univ. 16(3): 366–371, December 2018</p> 2018-12-27T16:42:03+00:00 ##submission.copyrightStatement## Weed diversity of the family Poaceae in Bangladesh Agricultural University campus and their ethnobotanical uses 2018-12-28T05:43:10+00:00 Ashaduzzaman Sagar Jannat -E- Tajkia A.K.M. Golam Sarwar <p>A taxonomic study on the weeds of the family Poaceae growing throughout the Bangladesh Agricultural University campus was carried out to determine species diversity of grasses in the campus. A total of 81 species under 46 genera and 2 subfamilies of the family Poaceae were collected and identified; their uses in various ailments were also recorded. Out of the three subfamilies, no weed from the subfamily Bambusoideae was found. Among the genera, <em>Digitaria</em>, <em>Eragrostis</em>, <em>Brachiaria</em>, <em>Panicum</em>, <em>Echinochloa</em> and <em>Sporobolus</em> were most dominant in context to number of species with a total of 29 species. While 28 genera were represented by single species each in BAU campus; of these 15 genera were in Bangladesh as well. Some of them are major and obnoxious weeds in different crop fields including staples rice and wheat. The flowering period will be helpful for the management of respective weed population. Many of these weed species have high economical, ethnomedicinal and other uses. The phenological study of these weed taxa will be helpful in managing weeds of the family Poaceae of this campus as well as the whole country without affecting the agro-ecosystem by keeping the weed population below a threshold level.</p> <p>J.Bangladesh Agril. Univ. 16(3): 372–379, December 2018</p> 2018-12-27T16:57:02+00:00 ##submission.copyrightStatement## Effect of Bion and Amistar in inducing resistance against Cercospora leaf spot of banana 2018-12-28T05:43:12+00:00 Fahmida Akter Md. Mijanur Rahman Mejan Mst. Arjina Akter Ismail Hossain <p>Bion (benzothiadiazole) and Amistar (azoxystrobin) were applied for controlling <em>Cercospora</em> leaf spot of banana variety Amrita Sagarin at the field laboratory, Department of Plant Pathology, Bangladesh Agricultural University (BAU), Mymensingh by applying different treatments viz. dipping bottom of sucker for 6 hrs. in Bion (0.005%) before planting, dipping bottom of sucker for 6 hrs. in Bion (0.01%) before planting, spraying of Bion @ 0.005% once on leaves after 80 days of planting, spraying of Bion @ 0.01% once on leaves after 80 days of planting, spraying of Amistar @ 0.05% once on leaves after 80 days of planting, spraying of Amistar @ 0.05% only on leaves after 80 and 140 days of planting, spraying of Bion @ 0.005%) once on leaves and pseudostem after 80 days of planting, spraying of Bion @ 0.01% once on leaves and pseudostem after 80 days of planting and control (without chemical). From these above treatments it is revealed that dipping of bottom of banana sucker for 6 hrs. in Bion either @ 0.005% or 0.01% significantly reduced plant height, while Bion and Amistar did not exert any effect on number of leaf/ plant. Bion @ 0.005% and 0.01% (dipping of bottom of sucker before planting), Bion @ 0.01% (on leaves, 1 spray) and 0.01% (on leaves and pseudostem, 1 spray) and Amistar @ 0.05% (on leaves, 2 spray) showed significant effect in reducing number of diseased leaf/ plant, number of diseased spot/ plant, percent leaf area (cm<sup>2</sup>) diseased/ plant, mean spot size (mm<sup>2</sup>)/ plant of banana var. Amrita sagar.</p> <p>J.Bangladesh Agril. Univ. 16(3): 380–385, December 2018</p> 2018-12-27T16:57:16+00:00 ##submission.copyrightStatement## Approach of monocarpic senescence control by nitrogen manipulation in mungbean and cowpea 2018-12-28T05:43:13+00:00 Md. Matiul Islam Seijun Sakamoto Shao -Hui Zheng <p>Pods start growing almost at the same time and mature simultaneously in soybean (<em>Glycine max </em>(L.) Merrill) plants. But mungbean (<em>Vigna radiata </em>L. Wilczek) and cowpea&nbsp;(<em>Vigna sinensis </em>Endl.) perform unsynchronized pod maturity. To overcome unsynchronized pod maturity the nitrogen redistribution aspects of mungbean and cowpea were investigated based on the linkage of soybean. Pot experiment was conducted using a nodulating mungbean variety (<em>cv</em>. XANH NINH THUAN) in 2015 and cowpea variety (<em>cv</em>. IT98K-205-8) in 2016 in the vinyl house at Saga University in Japan. During the experiment, nutrient solution was applied by changing nitrogen concentrations to 5, 25 and 100 ppm (control). Mungbean plants provided with low concentration of 5 and 25 ppm of nitrogen supply was not capable to produce continuous pods. Cowpea plants supplied with low concentration of nitrogen was also unable to produce successful pods continuously. Insufficient nitrogen hampered the continuation of pod setting in both the cases, might be due to, all the vegetative stored nitrogen had been utilized for seed development during the vegetative phase before pod setting. In case of 100 ppm nitrogen supply, for both mungbean and cowpea, no senescence and nitrogen remobilization occurred. However, researches showed that soybean typically undergoes the remobilization evidence, i.e., monocarpic senescence, in 100 ppm of nitrogen supply.</p> <p>J.Bangladesh Agril. Univ. 16(3): 386–395, December 2018</p> 2018-12-27T16:57:26+00:00 ##submission.copyrightStatement## Floristic diversity of the soil weed seedbank in boro rice fields: in situ and ex situ evaluation 2018-12-28T05:43:15+00:00 Fahmida Akter Mahfuza Begum Md. Abdus Salam <p>This study was conducted at the research fields of Agronomy Field Laboratory and in the net house of Department of Agronomy, Bangladesh Agricultural University, Mymensingh. The objective of this study was to compare the<em> in situ </em>and <em>ex situ</em> floristic diversity of soil weed seedbank in <em>boro</em> rice. The soil weed seedbank status was observed through weed survey at research fields and seed germination method in the net house. Five fields were selected randomly with four replications. Soil samples were collected to a depth up to 15 cm and placed in plastic pots in the net house. Weed seedlings that emerged were identified, counted and removed at 30 day intervals throughout the four months emergence period. At the same time, weed survey was done using a 0.25 m<sup>–2 </sup>quadrate. Diversity was computed by the Shannon index (<em>H’</em>). Under <em>in situ </em>condition, 31 weed species belonging to 15 families germinated and 33 weed species belonging to 17 families germinated under <em>ex situ</em> condition. The family Cyperaceae had the highest species richness under both <em>in situ</em> and <em>ex situ </em>conditions. The five most dominant weed species under <em>in situ</em> condition based on importance value were <em>Eleocharis atroperpurea</em> &gt; <em>Cyperus difformis</em> &gt; <em>Echinochloa crusgalli</em> &gt; <em>Monochoria vaginalis </em>&gt; <em>Lindernia antipoda </em>whereas, under <em>ex situ</em> condition, two new weed species, <em>Fimbristylis miliacea</em> and<em> Echinochloa colonum</em> were observed in the dominant list instead of <em>Monochoria vaginalis </em>and <em>Lindernia antipoda </em>having slightly different rank and order. The <em>ex situ</em> density was 2721 plants m<sup>–2</sup>, approximately four times higher than the 700 plants m<sup>–2</sup> observed under <em>in situ</em> situation and similarly <em>ex situ</em> condition had higher Shannon Index (<em>H’</em>) value (<em>H’</em>=2.412) indicating greater diversity than <em>in situ (H’</em>=2.211<em>) </em>condition. The information obtained from the study would help determine the infestation potential of identified species, which could lead to improved management strategies.</p> <p>J. Bangladesh Agril. Univ. 16(3): 396–402, December 2018</p> 2018-12-27T16:57:36+00:00 ##submission.copyrightStatement## Conservation agriculture for productivity and profitability of wheat and lentil in maize based cropping system in far western Nepal 2018-12-28T05:43:17+00:00 Hari Kumar Prasai Shrawan Kumar Sah Anand Kumar Gautam Anant Prasad Regmi <p>Zero tillage with crop residue retention which is principle of conservation agriculture (CA) can be a good practice to achieve sustainable and profitable crop yield without affecting soil fertility. This approach was not tested in wheat and lentil based maize-mungbean system in far western Nepal. The effect of CA in the maize-wheat-mungbean and maize-lentil-mungbean cropping systems with two varieties of each of wheat and lentil was studied at Regional Agricultural Research Station, Bhagetada, Dipayal, Doti district of Nepal for two years (2015 and 2016).&nbsp; The average grain yield of wheat and lentil under the CA system was 5.92% higher (2.86 t ha<sup>−1</sup>) than that of conventional agriculture (2.70 t ha<sup>−1</sup>). The CA under maize-wheat-mungbean cropping system produced 7.90% higher grain yield (4.78 t ha<sup>−1</sup>) compared to conventional agriculture and the CA under maize-lentil-mung bean cropping system gave11.11% higher grain yield (1.00 t ha<sup>−1</sup>). Maize-wheat-mungbean cropping system, conservation agriculture and WK 1204 variety of wheat produced 9.34% higher yield (4.80 t ha<sup>−1</sup>) than conventional agriculture whereas maize-lentil-mungbean cropping system, conservation agriculture and Khajura1 variety of lentil recorded 11.96% higher grain yield (1.03 t ha<sup>−1</sup>) than conventional agricultural. The CA system produced 114% higher net benefit (NRs. 40200 ha<sup>−1</sup>) than that of conventional agriculture. Higher yields of crops in CA system could be associated with improvement of soil properties for minimum soil disturbance and residue retention and profitable yield for reduced cost of production. Thus, the 2-year study suggests that no tillage with previous crop residues retention and use of higher yielding varieties is a potential crop cultivation approach for the maize based cropping system in light textured soil of river basin area of Nepal in order to sustain soil health, crop yield and farm economy.</p> <p>J. Bangladesh Agril. Univ. 16(3): 403–410, December 2018</p> 2018-12-27T18:27:46+00:00 ##submission.copyrightStatement## Determination of toxicity of spinosad against the pulse beetle, Callosobruchus chinensis L 2018-12-28T05:43:18+00:00 Pronita Mondal Mohammad Mahir Uddin Mohammad Tofazzal Hossain Howlader <p>Pulses serve as one of the main sources of protein and minerals as well as play a vital socio-economic role in the diet of common people of Bangladesh but these pulses suffer enormous losses due to infestation of a serious insect pest pulse beetle, <em>Callosobruchus chinensis</em> L. As a part of eco-friendly management of this detrimental pest, an experiment was conducted at the laboratory to determine the toxicity of spinosad against the pulse beetle, <em>C. chinensis</em> L. directly by using dry film contact toxicity method and indirectly by treating chickpea seeds. In the direct method spinosad showed contact toxicity and the lethal concentration of spinosad was 117.46, 76.05 and 37.45 ppm at 24, 48 and 72 hours after treatment, respectively. On the other hand, the LC<sub>50</sub> values were 990.34, 301.35 and 95.08 ppm after 24, 48 and 72 HAT, respectively as per indirect method. A dose-dependent relation with the mortality was observed by both methods. Spinosad was also significantly effective in reducing the number of eggs (68.00 to 98.60% inhibition over control), adult emergence (56.70 to 100% inhibition over control), percent seed infestation (62.79 to 100% inhibition over control) and seed weight loss (50.81 to 100% inhibition over control). The present results indicated that spinosad could be suggested for the efficient management of <em>C. chinensis</em> in storage.</p> <p>J. Bangladesh Agril. Univ. 16(3): 411–416, December 2018</p> 2018-12-27T18:27:55+00:00 ##submission.copyrightStatement## Pathogenic variability of Colletotrichum sp. from chilli anthracnose and their tolerance to carbendazim 2018-12-28T05:43:20+00:00 Jannat Muhtarima Farzana Haque Tumpa Md. Rashidul Islam Md. Atiqur Rahman Khokon <p>Twelve isolates of <em>Colletotrichum capsici</em> and <em>Colletotrichum gloeosporides</em> were isolated from anthracnose infected chilli fruits from different areas of Mymensingh. Isolated pure fungal isolates were grouped on the basis of their morphological characters <em>viz.</em> colony color and compactness, size, shape and number of conidia. The white colored isolates were identified as <em>C. capsici</em> and showed faster growth on PDA medium. In contrast, grey colored fungal isolates were identified as <em>C. gloeosporides</em> and comparatively slow growth on PDA medium. All the fungal isolates were pathogenically active and developed typical symptoms on both green and ripe fruits of chilli. The isolates of <em>C. capsici</em> collected from Kalibari showed the highest infection (74.99%) on fruit surface followed by Muktijoddhar bazar (61.83%). Differential tolerance was observed as fungal growth was different against 0.05% and 0.1% carbendazim while 0.2% carbendazim was lethal against all fungal isolates. The results indicate that severity of anthracnose of chilli is different may be due to aggressiveness of fungal and their tolerance against common fungicide like carbendazim.</p> <p>J.Bangladesh Agril. Univ. 16(3): 417–423, December 2018</p> 2018-12-27T18:28:06+00:00 ##submission.copyrightStatement## Screening of yard long bean genotypes for resistance to legume pod borer, Maruca vitrata F. 2018-12-28T05:43:22+00:00 Robiah Noor Ahmed Md. Azizul Haque Kazi Shahanara Ahmed Mohammad Mahir Uddin Mohammed Abul Monjur Khan <p>The research work on the evaluation of yard long bean genotypes for resistance to legume pod borer, <em>Maruca vitrata</em> F. was carried out in two consecutive seasons viz., kharif 2015 and rabi 2015-16 in randomized complete block design (RCBD) in the field of the Department of Entomology, Bangladesh Agricultural University (BAU), Mymensingh and chemical analysis of sugar, protein and phenol of yard long bean were carried out at Bangladesh Institute of Nuclear Agriculture (BINA), Professor Mohammad Hossain Central Laboratory and laboratory of the Department of Biochemistry and Molecularbiology, Bangladesh Agricultural University (BAU), Mymensingh. Nine genotypes of yard long bean were evaluated and reacted distinctly to <em>M. vitrata </em>with significantly different levels of infestation to flowers, pods and yield. The genotype Long Red Mollika was categorized as moderately resistant to legume pod borer in both kharif and rabi seasons. Genotype YL 305 was found susceptible in both the seasons. The plant attributes, both vegetative and reproductive, of yard long bean did not show any significant correlation in favour of resistance to <em>M. vitrata</em>. Yard long bean genotypes also did not show resistant reaction to <em>M. vitrata </em>in respect of sugar and phenol but particularly protein showed antibiosis against <em>M. vitrata</em>.</p> <p>J. Bangladesh Agril. Univ. 16(3): 424–428, December 2018</p> 2018-12-27T18:28:15+00:00 ##submission.copyrightStatement## Productivity and economic efficiency of sugarcane cultivation under intercropping system with potato and mungbean 2018-12-28T05:43:23+00:00 Md. Shariful Islam M. Obaidul Islam <p>Sugarcane is an important cash-cum-industrial crop of Bangladesh and mainly cultivated in north-western part of the country where different intercropping systems are available. The experiment was carried out at the Bangladesh Sugarcane Research Institute (BSRI) farm, Ishurdi, Pabna, Bangladesh in two successive years viz. 2008–2009 and 2009–2010 to investigate the profitability of sugarcane (cv. Isd 37) with potato (cv. Cardinal) and mungbean (cv. BINA mung5) as successive intercrops. Two factors included in the experiment viz. Factor A: Row to row distance of sugarcane such as 80 cm (S<sub>1</sub>), 100 cm (S<sub>2</sub>) and 120 cm (S<sub>3</sub>) where potato and Mungbean were intercropped. Factor B: Cutting of sugarcane leaf such as cutting of leaves (C<sub>1</sub>) and No cutting of leaves (C<sub>2</sub>). The experiment was laid out following randomize complete block design. For sugarcane cultivation BSRI technique and for intercropping the cultivation systems indicated by Bangladesh Agricultural Research Institute were followed. The cane yield and sugar yield were the highest at 100 cm row to row spacing (RRS) of sugarcane (non-leaf cutting = C<sub>0</sub>) intercropped with 2 rows (2R) of potato followed by 2R of mungbean (S<sub>2</sub>C<sub>0</sub>). The lowest yield of sugarcane was found at 80 RRS (C<sub>0</sub>) with one row (1R) of potato and 1R of mungbean (S<sub>1</sub>C<sub>0</sub>). The effect of light interception on growth and yield of first intercrop (potato) was insignificant but significant for second intercrop. The highest yield of potato tuber was 15.28 t ha<sup>–1</sup> in S<sub>5</sub> (sole potato) followed by 10.85 t ha<sup>–1 </sup>in S<sub>3</sub>C<sub>1</sub> (sugarcane under leaf cutting at RRS 120 cm with 3R of potato followed by 3R of mungbean). For the yield of mungbean (2<sup>nd</sup> intercrop), light interception ratio (%) was significantly lowest in (S<sub>3</sub>C<sub>1</sub>) where sugarcane RRS was 120 cm with 3R of potato followed by 3R of mungbean under leaf non-cutting (C<sub>0</sub>) of sugarcane. The highest adjusted cane yield (170.66 t ha<sup>–1</sup>), benefit cost ratio (3.49) and LER (2.33) were observed in sugarcane at RRS 120 cm with 3R of potato followed by 3R of mungbean (S<sub>3</sub>C<sub>1</sub>). Results of both years indicated that intercrops gave higher land equivalent ratio and net return over sole sugarcane planted while sole sugarcane gave maximum benefit cost ratio compared with other intercrops. Finally, on the basis of results it may be concluded that sugarcane transplanted at RRS at 120 cm with 3R potato followed by 3R of mungbean can be grown as intercrops for higher economic return.</p> <p>J. Bangladesh Agril. Univ. 16(3): 429–436, December 2018</p> 2018-12-27T20:09:06+00:00 ##submission.copyrightStatement## Effect of different weed management techniques on the performance of wheat cultivars 2018-12-28T05:43:25+00:00 Fatema Islam Md. Abdus Salam Md. Abdul Kader <p>Weed management in a sustainable way is the ultimate target of Agronomists to maximize crop yield per unit area. To develop a sustainable weed management technique, an experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh to study the effect of different weed management techniques on the performance of wheat cultivars. The experiment comprised three wheat cultivars; viz. BARI Gom-28, BARI Gom-29 and BARI Gom-30 and five weed management techniques namely, no weeding (W<sub>0</sub>), two hand weedings (HW) at 20 DAS and 40 DAS (W<sub>1</sub>), use of rice straw mulch @ 6 t ha<sup>–1</sup> (W<sub>2</sub>), use of pre emergence herbicide Panida @ 1 L ha<sup>–1</sup> (W<sub>3</sub>) and use of pre emergence herbicide + one hand weeding (HW) at 40 DAS (W<sub>4</sub>). The experiment was laid out in a split-plot design with three replications. The experimental plots were infested by different weed species.&nbsp; Annual weeds were outnumbered than perennial and constitute 84.74% against 15.26%, respectively. Among them, the five most dominant weed species based on the importance value in descending order were <em>Polygonum</em> <em>orientale</em>&gt;<em>Chenopodium</em> <em>album</em> &gt;<em>Cynodon</em> <em>dactylon</em>&gt;<em>Sonchus arvensis</em>&gt;<em>Cyperus rotundus</em> and rest of the weed species represent 8.94%. Wheat cultivar BARI Gom-29 produced the highest grain yield (3.44 t ha<sup>–1</sup>). The highest grain yield (3.29 t ha<sup>-1</sup>) was obtained from the application of pre emergence herbicide Panida @ 1 L ha<sup>–1</sup>. But in case of interaction BARI Gom-29 in combination with use of rice straw mulch @ 6 t ha<sup>-1</sup> produced the highest grain yield (4.36 t ha<sup>–1</sup>). The highest grain yield obtained due to highest number of total and effective tillers hill<sup>-1</sup> and highest number of grains spike<sup>-1</sup> in BARI Gom-29 with application of rice straw mulch @ 6 t ha<sup>–1</sup>. From the results of the study it may be concluded that BARI Gom-29 with application of rice straw mulch @ 6 t ha<sup>–1 </sup>technique appears to be the promising technology in controlling weeds as well as obtaining higher grain yield of wheat.</p> <p>J. Bangladesh Agril. Univ. 16(3): 437–443, December 2018</p> 2018-12-27T20:09:17+00:00 ##submission.copyrightStatement## Evaluation of pre-harvest interval for pesticides on different vegetables in Bangladesh 2018-12-28T05:43:27+00:00 Md. Touhidul Islam Md. Anowarul Haque <p>A study was conducted to evaluate the pre-harvest interval (PHI) for pesticides on different vegetables in Bangladesh. Data were collected from selected 330 vegetable farmers of eleven districts- Bogra, Joypurhut, Rangpur, Gaibandha, Jessore, Jhenaidah, Magura, Khulna, Satkhira, Kustia and Chuadangha in 2013. The interview schedule containing direct questions with appropriate scales were prepared according to the objectives of the study and data were collected from the vegetable farmers. The recommendation rate of the pesticides was used in the vegetables field of the study area. The highest and the lowest amount of highly toxic vegetables were harvested by the farmer of Jhenaidah and Gaibandha districts, having an average mean values of 40 and 10%, respectively. The result also demonstrated that the brinjal was the vegetables whose PHI was the lowest receiving highest toxic vegetable among all vegetables under consideration in this study. The green banana and green papaya proved to be non toxic vegetables among all vegetables. Fifty percent farmer followed the PHI 0-2 days of pesticide for brinjal those are highly toxic. No farmer used pesticide before at least one month of harvesting in case of green banana and green papaya. Though the lowest amount of highly toxic vegetables were harvested by the farmer of Gaibandha district, the overall vegetables those were harvested by the farmer of Satkhira district that was comparatively less toxic than the other districts. The farmers of this district harvested 20% non toxic and 13.33% slightly toxic vegetables. This study provides information on the knowledge, attitudes, and practices of vegetable farmers in the eleven districts of Bangladesh regarding pesticide use. Survey responses indicate the widespread improper use of pesticide especially inadequate PHI that pose hazards to the human health and environment.</p> <p>J. Bangladesh Agril. Univ. 16(3): 444–447, December 2018</p> 2018-12-27T20:09:28+00:00 ##submission.copyrightStatement## Growth and yield performance of Aloe vera grown in different soil types of Bangladesh 2018-12-28T05:43:28+00:00 Tanzin Chowdhury Md Arifur Rahman Kamrun Nahar Md. Akhter Hossain Chowdhury Md. Sirajul Islam Khan <p>Plant requires suitable soil for higher yield, quality growth and desired crop productivity that differ with soil characteristics, availability of the nutrient elements and overall soil fertility. <em>Aloe vera, </em>a documented medicative plant, is used for numerous medical and cosmetic applications since very beginning of the civilization. An experiment was conducted in Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh to find out the most appropriate soil for <em>A. vera</em> cultivation. Seven types of soils <em>viz.,</em> acid, calcareous, non-calcareous, charland, saline, peat and acid sulphate were collected from different locations of Bangladesh. Eighteenth month old<em> Aloe vera</em> seedlings were collected from <em>Shomvogonj</em>, Mymensingh and planted during last week of May, 2017 following completely randomized design (CRD) with three replications. Most of the soils were light grey in colour, acidic to neutral in nature and clay to clay loam in texture except non-calcareous and charland soils. Bulk density, particle density and field capacity ranged from 1.23−1.45 g cm<sup>−3</sup>, 2.20−2.58 g cm<sup>−3</sup> and 27.07−30.20%, respectively. The ranges of pH, EC and organic matter contents were 3.8 to 7.8, 0.25 to 14.04 dS m<sup>−1</sup> and 0.88 to 16.40%, respectively. The organic matter content was found as low to moderate except peat soil. Total N, exchangeable K, available P and S contents ranged from 0.05−0.95%, 0.17−0.73 cmol kg<sup>−1</sup>, 3.09−12.10 and 11.06−735.12 µg g<sup>−1</sup> soil, respectively. Growth and leaf biomass yield of <em>A. vera</em> was significantly influenced by different soil types. The highest plant height, leaf number, leaf area and leaf fresh weight were recorded from the plant grown in non-calcareous soil whereas maximum fresh gel weight, dry leaf weight and yield increase over acid sulphate soil were found from the plant grown in calcareous soil. The highest fresh leaf gel weight (907 g plant<sup>−1</sup>) was obtained from the plant grown in calcareous soil which was identical with the gel weight (880 g plant<sup>−1</sup>) of the plant grown in acid soil. The yield increase of acid, non-calcareous, charland, saline1 (6.32 dS m<sup>−1</sup>) and saline2 (8.14 dS m<sup>−1</sup>) soils over acid sulphate soil were 718, 712, 394, 144 and 86%, respectively. The overall performance of the soils in relation to leaf biomass yield was of the following order: calcareous ≥ acid ≥ non-calcareous &gt; charland &gt; saline1 (6.32 dS m<sup>−1</sup>) &gt; saline2 (8.14 dS m<sup>−1</sup>) &gt; peat &gt; acid sulphate soil. The results suggest that farmers could be advised to grow <em>A. vera</em> either in calcareous or acid soils of Bangladesh. Since calcareous and non-calcareous soils are mostly used for growing cereals, pulses, cash crop like sugarcane, fruits etc., acid soil could be used for cultivating this important medicinal crop considering the socio-economic conditions of the country.</p> <p>J. Bangladesh Agril. Univ. 16(3): 448–456, December 2018</p> 2018-12-27T20:09:40+00:00 ##submission.copyrightStatement## Evaluation of exotic wheat (Triticum aestivum L.) genotypes for heat tolerance on the basis of physiological phenotyping 2018-12-28T05:43:30+00:00 Kaji Md. Wayaz Hossain Sharif Ar Raffi <p>Plant physiological parameters such as membrane thermostability, canopy temperature depression, leaf chlorophyll content and yield related traits like no. of spikelets per spike, no. of grains per spike, 200-grain weight and grain yield of 18 wheat genotypes were carried out to assess for heat tolerance. Performances of all the genotypes were found to have significant differences for all the traits except canopy temperature depression. But, canopy temperature depression with some other traits like leaf chlorophyll content, no. of grains per spike, 200-grain weight and grain yield per plant demonstrated significant differences when it grown in heat stress condition. In general, genotypes with higher leaf chlorophyll content and enhanced membrane thermostability demonstrated higher 200-grain weight or grain yield. Besides, in spite of having heat tolerant traits, several genotypes performed poor due to their poor genotypic potential. The present investigation has successfully isolated several genotypes <em>viz.</em> H024, H023, H022 and H018 with desirable traits related to heat tolerance based on overall performance while grown under heat stress. These genotypes can be used as gene source for future breeding program to improve heat tolerance of the local wheat cultivars.</p> <p>J. Bangladesh Agril. Univ. 16(3): 457–463, December 2018</p> 2018-12-27T20:09:56+00:00 ##submission.copyrightStatement## Clinical and laboratory investigation on the recurrence of the umbilical hernia after herniorrhaphy in bovine calves 2018-12-28T05:42:43+00:00 Md. Mehedi Jaman Pravin Mishra Marzia Rahman Md. Mahmudul Alam <p>This study was performed to investigate the recurrence of the umbilical hernia in bovine calves at Veterinary Teaching Hospital (VTH), Bangladesh Agricultural University, Mymensingh. A total of 34 animals were admitted to VTH diagnosed to have the umbilical hernia, among them 13 were recurrent cases. The diagnosis of umbilical hernia was based on the disease history, clinical signs, palpation, needle exploration, and auscultation. The risk factors like age, sex, breed, body weight, the season of affection, size of the hernial ring, suture materials, error in suture patterns and involvement of infections in the recurrence were considered.&nbsp; Infected samples were collected from recurrent patients with infected umbilicus region, and subjected to bacteriological analysis. We found the recurrence percentage was higher in the crossbred (44%) than that in the indigenous (22.22%) calves. It was also observed that recurrence percentage was higher in male (42.11%) than those in female (33.33%) patients. The recurrence percentage was also higher in calves aged below three months (40.74%) than the calves of above three months (28.57%). It was found that recurrence percentage was most frequent in summer (46.15%) and the least in the winter (30%). Among 13 recurrent bovine calves after herniorrhaphy, three calves returned to VTH with umbilical abscess, six calves recurred due to non-infectious causes like failure of suture materials, errors in suture pattern or management fault and 4 calves recurred with both umbilical abscess and non-infectious causes. From this study, it may be concluded that synthetic absorbable suture materials with secured suture pattern and good postoperative management may help in reducing the recurrence of an umbilical hernia.</p> <p>J. Bangladesh Agril. Univ. 16(3): 464–470, December 2018</p> 2018-12-28T04:26:39+00:00 ##submission.copyrightStatement## Growth performance of white, black and bronze color heritage turkeys under semi-intensive system 2018-12-28T05:42:51+00:00 Shubash Chandra Das Md. Yahya Md. Shamim Hasan Md. Altaf Hossain Tanzina Akter Mahbuba Sultana <p>The present study was conducted to compare the growth performance of White, Black and Bronze color type of turkeys, which have been currently introduced in Bangladesh. The birds were reared under semi-intensive system at BAU Poultry Farm with supplementation of commercial broiler grower and layer feeds. Key objectives were to investigate the growth performance of locally found turkeys (known as heritage turkeys) under semi-intensive rearing system and to recommend turkey as a supplementary part of existing poultry business in the country. A total of 46 poults of White, Black and Bronze color type unsexed birds of 5 weeks age were housed. Birds were reared under similar management conditions and feeds were purchased from local market. No significant difference (p&gt;0.05) in live weight for three color types were found. At the end of 21 weeks rearing, Bronze type turkeys attained highest live body weight (3720.71g/bird) while White type turkeys attained lowest (3282.29g/bird). The Black type turkeys however, attained 3552.86g/bird body weight. The live weight gain was increased gradually but decreased again after 18 weeks of age. Weekly weight gains were highest in all color types at 18 weeks of age where white type male turkey attained the highest (440.71g/bird) and black type showed the lowest weight gain (345.00g/bird). No significant difference (p&gt;0.05) in FCR among the three color types were found. Survivability under semi intensive system of three different color types, White, Black and Bronze were 100%, 88.46% and 91.67% respectively. Taken together, the growth performance of Bronze type turkey was superior to other color types used in this experiment. Therefore, it can be concluded that turkey farming will viable in Bangladesh with available local varieties under semi-intensive system through feeding of commercial broiler and layer feeds.</p> <p>J. Bangladesh Agril. Univ. 16(3): 471–477, December 2018</p> 2018-12-28T04:26:53+00:00 ##submission.copyrightStatement## Determinants and impact of asthma disease in Mymensingh zone: An empirical analysis 2018-12-28T05:42:45+00:00 Homayora Yeasmin Sheikh Mohammad Sayem Farjana Misu Mohammad Amirul Islam <p>Asthma, a global public health problem, is affecting both developing and developed countries. Bangladesh is one of the asthma prone countries with high concentration of the disease in Mymensingh zone. This study has been conducted to identify the determinants and impact of asthma disease in Mymensingh zone of Bangladesh. Cluster sampling technique is used for sampling 100 asthmatic patients from Mymensingh zone. Different socio-economic and biological information of the asthmatic patients have been collected. Multinomial logistic regression and multivariate logistic regression have been used to find out the determinants and impact of asthma.The result suggests that the likelihood of being in severe asthma is 5.182 times higher if the public rule of smoking is not maintained in work place. Positive impact of access to sunlight and presence of cockroaches, mice or rats in household on reducing asthmatic condition was also revealed in the analyses. The multivariate logistic regression suggests that hypertension and weight change both are significantly influenced by disease status of asthma.This research identifies that along with other determinants smoking in the working places is an important determinant of asthma in Mymensingh zone of Bangladesh. Furthermore, asthma is found to have significant influence on hypertension and weight change which will guide the policy planners and health professionals to address the issues together in systematic fashion. Mymensingh zone being an asthmatic region needs special attention in the national health program.</p> <p>J. Bangladesh Agril. Univ. 16(3): 478–481, December 2018</p> 2018-12-28T04:27:03+00:00 ##submission.copyrightStatement## Oil price volatility and its impact on economic growth and food security in Bangladesh 2018-12-28T05:42:53+00:00 Mousumi Saha Seikh Mohammad Sayem A. K. M. Abdullah Al-Amin Shankar Majumder <p>This study empirically examines oil price volatility and the impact of oil price changes on the growth of the economy and food security in Bangladesh. The study uses yearly data of macroeconomic variables from 1991 to 2015 and global food security index (GFSI) for the period 2012 to 2015. Furthermore, data of GFSI for previous four years have been simulated using exponential model. The GARCH (2, 1) model with minimum AIC postulates that volatility was high in the previous period and it has been continued to be lower in the current period (i.e. 2015). The co-integration test and error correction model exhibit that both in short-run and long-run case the increasing oil price negatively affected the growth of the economy. The simultaneous equations regression model using three-stage least squares estimator discloses that an increase in oil price declines the economic growth and food security simultaneously and significantly. Moreover, this study suggests that oil price volatility is not a good sign for the economy of Bangladesh, since, the country is an importer of crude oil, government policy should be quick responsive in relation to international oil market to create consistent oil market and sustainable economic development in Bangladesh.</p> <p>J. Bangladesh Agril. Univ. 16(3): 482–491, December 2018</p> 2018-12-28T04:27:18+00:00 ##submission.copyrightStatement## Production, yield and area growth of major winter vegetables of Bangladesh 2018-12-28T05:42:58+00:00 Sajia Sharmin Sandip Mitra M. Harun-Ar Rashid <p>Winter vegetable production has increased tremendously in Bangladesh. Excessive supply of vegetables reduces the market price that leads to economic loss at farm level. This study&nbsp; assesses the growth and trend of winter vegetables production, yield and area in Bangladesh. Semi-log regression model was used to assess the growth and trend of winter vegetables while Winston Prais transformation was utilized to solve the autocorrelation problem. Yearly time series data of collected from secondary sources was used for this analysis. Data were collected from 1986–87 to 2015–16 years. Data of some major winter vegetables like tomato, <em>rabi </em>brinjal, <em>rabi</em> pumpkin, water gourd, cauliflower, cabbage, radish, bean, green spinach were collected for this study. Results found that growth of tomato, cauliflower and cabbage production was about 5% which was much higher than other winter vegetables. Growth of cultivated area is about 3% per annum for most of the vegetables. Production of winter vegetables increases because of yield and area growth. Government can attempt to increase export of tomato, cauliflower and cabbage. Moreover, yield growth of green spinach and radish is necessary to increase both production and export.</p> <p>J. Bangladesh Agril. Univ. 16(3): 492–502, December 2018</p> 2018-12-28T04:27:30+00:00 ##submission.copyrightStatement## Value chain of pangas and tilapia in Bangladesh 2018-12-28T05:43:03+00:00 Md. Taj Uddin Apurba Goswami Md. Salehur Rahman Aurup Ratan Dhar Md. Akhtaruzzaman Khan <p>The study assessed pangas and tilapia value chain, and analyze the internal and external governance of the market actors at different levels. Two hundred samples (100 for each of pangas and tilapia fish) were included in the study from selected areas of Bangladesh. A combination of descriptive statistics and mathematical analysis were used to analyze the data. GAMM analysis was used to address the actors and their functions, product flow, information flow and governance of pangas and tilapia value chain. The study reveals that among all the actors, processors added the highest value and farmers followed it. The internal and external governance issues followed by different actors could be ranked as average, which reveals the improvement issue through intervention from respective authorities. SWOT analysis indicated high demand for pangas and tilapia in domestic and international markets, inadequate market infrastructure and increasing cost of feed as major strength, weakness and threat, respectively. The study recommended that good governance should be ensured from the production point to consumer along all the actors of value chain. Government should take step about monitoring the feed quality and improvement of pangas and tilapia value chain governance. Moreover, DoF, BFRI and NGOs should play the assigned role to train up the chain actors and provide extension services in order to explore the export potential of pangas and tilapia fishes in Bangladesh.</p> <p>J. Bangladesh Agril. Univ. 16(3): 503–512, December 2018</p> 2018-12-28T05:07:11+00:00 ##submission.copyrightStatement## Farm size, productivity and efficiency nexus: The case of pangas fish farming in Bangladesh 2018-12-28T05:43:07+00:00 Shaikh Sharmin Aktar Md. Akhtaruzzaman Khan Md. Masudul Haque Prodhan Mezamun -Ara Mukta <p>The inverse relationship between farm size and productivity is one of the most debated findings in agricultural productivity researches of developing countries. Aquaculture industries of Bangladesh have been expanded tremendously but most of the aquaculture farms are small and their productivity is not as high as expected. This paper has explored the relationships among farm size, productivity and efficiency of pangas fish farms. A survey was conducted on 125 farmers by direct interviewing in Mymensingh district of Bangladesh.&nbsp; Stochastic frontier production function was carried out to estimates the level of technical efficiency and polynomial regression was employed to show the relationship among farm size productivity and efficiency in pangas fish farming. In general, pangas fish farming was found to be profitable, where the large size farms were more profitable than the small. Feed and salt had highly significant and positive effects on productivity, while human labor had negative influences. Larger farms were found to be more productive and technically efficient than the smaller one, and the more productive farms were found to be more efficient. These findings could be justifiable by the fact that the large size farms enjoy more financial opportunities, management and marketing facilities in commercial mode and all these facilities help them to enhance productivity and efficiency.</p> <p>J. Bangladesh Agril. Univ. 16(3): 513–522, December 2018</p> 2018-12-28T05:07:24+00:00 ##submission.copyrightStatement## Analogical viewpoint of fisheries and aquaculture between Bangladesh and Nigeria: potential of knowledge transferability 2018-12-28T05:42:48+00:00 Ibrahim Shehu Jega Mohammad Mahfujul Haque Md. Idris Miah <p>The inland fisheries and aquaculture of Bangladesh and Nigeria were critically examined with a view to comparing their fish production and farming systems, nature of seed supply, contribution to country’s Gross Domestic Product (GDP) and the transferability of experiences towards development of the fisheries sector. A review-based study was conducted based on the available information in journals articles, reports, Bangladesh and Nigeria Departments of Fisheries Statistical Year Books, text books, thesis and web documents. There are considerable similarities between Bangladesh and Nigeria in terms of geographical position, agro-ecology, fisheries resources and the socio-economic condition,&nbsp;&nbsp; fish eating tradition and domestic demand for fish consumption of the people.&nbsp; Bangladesh aquaculture systems though mainly semi-intensive but more developed than that of Nigeria in terms of fish seed and feed supply while Nigeria, though adopts the intensive culture technique but experiences lower production and higher import of fish. From the findings of this review, it could be argued that Bangladesh needs to fully harness its abundant resources such as seeds, ponds, water, so as to achieve self-sufficiency in fish supply and develop export market. &nbsp;Alternatively, Nigeria needs to adopt, diversify and invest more in aquaculture and fisheries receiving learning from an aquaculture growing country, like Bangladesh, so as to increase production and reduce import.</p> <p>J. Bangladesh Agril. Univ. 16(3): 523–532, December 2018</p> 2018-12-28T05:07:42+00:00 ##submission.copyrightStatement## Domestication of red fin mahseer (Tor tor) with supplementary feeds in captive condition in Bangladesh 2018-12-28T05:42:54+00:00 Muhammad Shalah Uddin Kabir Farzana Arefin Mohammad Matiur Rahman Md. Rafiqul Islam Sarder Md. Fazlul Awal Mollah <p>Effects of supplementary feeds on growth, survival, and production of red fin mahseer, <em>Tor tor </em>(Hamilton) was assessed in captive condition under a monoculture system. Experiments were conducted for a period of 12 months where two feeds varying in protein contents were used in treatments. One laboratory formulated feed with 36.67% protein and a commercial feed with 28% protein were characterized as treatment-1 (T1) and treatment-2 (T2), respectively. At the same time water quality parameters were measured. The net increment in weight after 12 months was 671.60 g and 509.80 g in T1 and T2 respectively. The feed conversion ratio (FCR) was 4.72 and 5.26, and the specific growth rate (SGR) was 1.39 and 0.10 % day<sup>-1 </sup>in T1 and T2 respectively. In both treatments 100% fish were survived and provided the net production (kg/ha) 2807.06 and 2557.78 in T1 and T2, respectively. The water quality parameters were within the suitable range for fish culture. Between the feeds evaluated, feed with 36.67% protein (T1) proved best result considering the growth and production performance of the fish. Overall growth performance of <em>T. tor</em> was satisfactory; however, further research is needed.</p> <p>J. Bangladesh Agril. Univ. 16(3): 533–538, December 2018</p> 2018-12-28T05:07:54+00:00 ##submission.copyrightStatement## Study of stingray harvesting, marketing and utilization in Cox’s Bazar, Bangladesh 2018-12-28T05:42:59+00:00 Md. Nagim Uddin Mahabubur Rahman Md. Jakir Hossain Israt Jahan Tumpa Zakir Hossain <p>The present study was conducted to assess the harvesting procedures, nutritional value of stingray in the coastal district Cox’s Bazar, Bangladesh and its utilization as value-added product. Data were collected through direct observation, focus group discussion, questionnaire interview and cross check interview. It was found that stingray was mainly caught by artisanal fishery using gill net, set bag net and long line within 5-40 m depth ranges about 100-200 km at west direction, 10-60 km at south direction and 50-100 m depth ranges about 60-100 km at southwest direction from Fishery ghat, Cox’s Bazar. In the west direction, stingray harvesting grounds were Sonar char, Rupar char, Char Gongmoti and Dublar char in Patuakhali district, and Cox’s Bazar coast, Teknaf coast, St. Martin’s island coast and the south patches at south direction and middle ground at southwest direction. Generally stingrays was harvested throughout the year but were abundant during December and January. At fish landing center, the supply chain of stingray from fishermen to consumers passed through a number of intermediaries e.g., dealer, wholesaler, retailer and supplier. The market value of stingray varied where fishermen sold at 90-140 Tk/kg that passed through these channels and at last consumers got it at 140-250 Tk/kg. Six species of stingray were found in Fishery ghat, Cox’s Bazar namely <em>Himantura gerrardi, Dasyatis bennetti, Himantura uarnak, Himantura undulata, Himantura bleekeri</em> and <em>Neotrygon kuhlii</em>. Among them <em>H. gerrardi</em> and <em>H. bleekeri</em> were available and very popular in the market. The average moisture, protein, lipid, carbohydrate and ash content of <em>H. bleekeri </em>were determined as 78.08%, 14.80%, 4.31%, 0.95% and 1.87%, respectively and total energy content 103.78 Kcal. Three utilization processes were investigated in this study namely fish ball of stingray, stingray recipe with sour of tomato and stingray recipe with sour of tamarind. Fish ball was preferred as an excellent product and others were as very good products. Dried stingray products were only utilized by tribal peoples. Dried meat, skin and spine were exported abroad namely to China, Thailand, Myanmar and Singapore.</p> <p>J. Bangladesh Agril. Univ. 16(3): 539–544, December 2018</p> 2018-12-28T05:08:09+00:00 ##submission.copyrightStatement## Development of pickle from Thai pangus (Pangasianodon hypophthalamus) muscle and changes in it’s nutritional composition during storage 2018-12-28T05:43:04+00:00 Fatema Hoque Shikha Md. Ismail Hossain Khaleda Akter Md. Arifur Rahman <p>Fish pickle was developed from Thai pangus (<em>Pangasianodon&nbsp; hypophthalamus</em>) fish muscle by using different types of food additives. Mustard oil and soybean oil were used for preparing fish pickle. Dorsal muscle and whole fish muscle without bone were used as raw material for preparing fish pickle. Changes in nutritional composition, pH, bacteriological and sensory attributes were determined at room temperature (30–35°C) according to standard procedures. At room temperature (30-35°C) fish pickle prepared from dorsal muscle and whole fish muscle using both mustard oil and soybean oil remained in acceptable condition until 12/13 days. Bad smell produced in the pickle after 15<sup>th</sup> day of storage. Moisture, protein, lipid and pH value decreased but ash content increased with the progress of storage period. In case of soybean oil used pickle deterioration was faster than the pickles prepared using mustard oil. Bacterial load was higher in soybean oil pickle and the pickle prepared from whole fish muscle.</p> <p>J. Bangladesh Agril. Univ. 16(3): 545–552, December 2018</p> 2018-12-28T05:13:09+00:00 ##submission.copyrightStatement## Changes in the nutritional composition of Thai pangus (Pangasianodon hypophthalamus) pickle during storage at refrigeration temperature 2018-12-28T05:43:09+00:00 Md. Ismail Hossain Fatema Hoque Shikha Khaleda Akter <p>There is relation between nutritional composition of fish products and storage conditions. The present study was designed to prepare pickle from dorsal muscle and whole Thai pangus (<em>Pangasianodon hypophthalamus</em>) fish muscle by using different types of food additives and to observe the changes in the nutritional composition, pH and bacterial load of fish pickle during 60 days of storage at refrigeration temperature (5° to 8°C). Mustard oil and soybean oil were used for preparing fish pickle. The quality of fish pickles prepared with either mustard oil or soybean oil, was stable and remained good even after 60 days of storage at refrigeration temperature (5° to 8°C). No bad smell was produced in the pickles. The changes in nutritional composition occurred at this temperature but the rate was slow. Moisture, protein, lipid and pH value decreased as days passed but ash content increased. In case of pickle prepared using soybean oil deterioration rate was higher than the pickle prepared using mustard oil. Bacterial load was higher in soybean oil pickle and also the pickle prepared from whole fish muscle. At this low temperature, bacterial load increased but the rate was slower. Therefore, at refrigeration temperature(5° to 8°C) the pickle remain in acceptable condition quite longer, might be more than 60 days.</p> <p>J. Bangladesh Agril. Univ. 16(3): 553–559, December 2018</p> 2018-12-28T05:13:20+00:00 ##submission.copyrightStatement##