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Journal Cover The Agriculturists
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  This is an Open Access Journal Open Access journal
   ISSN (Print) 1729-5211 - ISSN (Online) 2304-7321
   Published by Bangladesh Journals Online Homepage  [105 journals]
  • Production and Nutritional Quality of High Yielding Fodders in the Coastal
           Areas for Ruminants

    • Authors: M Z Rahman, M A I Talukder
      Pages: 1 - 8
      Abstract: The experiment was conducted to study the production and nutritional values of high yielding fodders by the goat farmers in Kobirhat and Subornochar upazilas of Noakhali District. The yields of high yielding forages had significant differences among the species. The average higher biomass were obtained from Napier–hybrid (34), Napier-aerosa (20), Napier–bazra (17.33) and Splendida (19). The Andropogon and Signal fodder had similar yields of 12.67 & 13.67 t/ha/cut. There was a significant (P<0.05) variations in the DM contents among the forages. The DM content (%) of Napier varieties ranged from 19.60 to 22.30, and highest value was found in Ruzi (27.90). A non-significant (P<0.05) differences were observed in the CP content (%) among the Napier and Splendida varieties. There was no significant difference in metabolizable energy content (MJ/kgDM) among the forages. The cultivation of high yielding fodders e.g. Napier hybrid, Napier aerosa, Napier bazra and Splendida may be practiced in the saline areas of Noakhali for high productivity of ruminants.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26541The Agriculturists 2015; 13(1) 1-8
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Prevalence of Pathogenic Bacteria Isolated from Two Selected Salad
           Vegetables and Antibiogram Profile of Klebsiella spp.

    • Authors: Sumon Kumar Kundu, Md Tanvir Islam
      Pages: 9 - 17
      Abstract: The study was conducted to examine microbiological quality of raw salad vegetables of Jessore city of Bangladesh. Fourteen samples of two types of vegetables which are commonly used for salad eg. Tomato (<i>Lycopersicum esculentum</i>) and Cucumber (<i>Cucumis sativus</i>) were collected from different local markets of Jessore City and their bacteriological attributes were investigated using routine methods. All the vegetables were highly contaminated with coliforms and fecal coliforms. Range of Total Viable Count were 11x106 CFU/g to 20x107 CFU/g for tomato and 12x105 CFU/g to 24x107 CFU/g for cucumber, Total Coliform Count were 11x104 CFU/g to 2 x106 CFU/g for tomato and 10.2x103 CFU/g to 60x104 CFU/g for cucumber and Total Staphyllococcal Count were 11x104 CFU/g to 25x106 CFU/g for tomato and 10x104 CFU/g to 50x106 CFU/g for cucumber. Total coliforms were identified as <i>Escherichia coli<i>, <i>Klebsiella<i> spp., <i>Enterobacter<i> spp., <i>Citrobacter<i> spp. and <i>Shigella<i> spp. Antibiogram was conducted with twelve different antibiotics for some randomly selected pure colonies of <i>Klebsiella<i> spp. Multidrug resistance was observed in 90% isolates with resistance from two to six antibiotics. Hygienic practices should be followed in handling the vegetables in local markets and vegetables might have an important role as a source of antibiotic resistant bacteria.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26542The Agriculturists 2015; 13(1) 9-17
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Economic Empowerment of Haor Women through Duck Farming in Bangladesh

    • Authors: Romaza Khanum, Muhammad Salim Al Mahadi
      Pages: 18 - 25
      Abstract: A study was conducted to investigate the extent of women participation in duck rearing farm and to address women’s economic empowerment in Hakaluki haor area of Maulvibazar district in Bangladesh. Primary data from 80 women duck raisers were collected through face to face interview. In this case haor women played an important role in the duck rearing activities which were carried out to explore the meaningful interpretation of women’s present status. The result of the study revealed that duck rearing farming has exerted greater impact on improving socioeconomic condition and economic empowerment of haor women. The successful duck farming provides the women with economic independence and improved livelihood leading to their empowerment.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26543The Agriculturists 2015; 13(1) 18-25
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Estimation of Genetic Diversity in Onion (Allium cepa
           L.)

    • Authors: M S Akter, A Biswas, S S Siddique, S Hossain, N A Ivy
      Pages: 26 - 34
      Abstract: The experiment was conducted at the field laboratory of the Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during November 2008 to March 2009 to estimate the genetic diversity of exotic and local onion. Ten genotypes of onion were evaluated for 16 characters in a randomized complete block design to study the genetic divergence through multivariate analysis. Ten genotypes formed three clusters. Cluster III contained maximum number of five genotypes. Cluster I and II contained three and two genotypes, respectively. The inter cluster distance was larger than the intra cluster distances. The inter cluster distance was maximum between the cluster II and III (6.336) and minimum between the cluster I and II (3.876). The intra cluster distance in the entire three clusters was more or less low, indicating that genotypes within the same cluster were closely related. Considering clustered distance and cluster mean, the intra cluster distance revealed that the genotypes Indian big (G1) and Patnai pink (G5) from the cluster II and genotypes Taherpuri, Indian medium (G1), Big single bulb (G7), Big double bulb (G8), Small single bulb (G9) and Small double bulb (G10) from the cluster III may be selected as parents for future breeding program.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26545The Agriculturists 2015; 13(1) 26-34
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Growth, Yield and Profitability of Cabbage (Brassica
           oleracea
    L.) as Influenced by Applied Nitrogen and Plant Spacing
           

    • Authors: Firoj Asadul Haque, N Islam, Md Nazrul Islam, Ahsan Ullah, Md Dulal Sarkar
      Pages: 35 - 45
      Abstract: An experiment was conducted with cabbage during October 2012 to February 2013 at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh. Four levels of nitrogen: viz. 0, 150, 250 and 350 kg ha-1 and three plant spacings: 50 x 30, 50 x 40 and 50 x 50 cm were applied in a Randomized Complete Block Design with three replications. Nitrogen @ 250 kg ha-1 with the spacing of 50 x 50 cm was more effective and produced the highest fresh weight of head(2.17 kg), marketable head yield (86.93 t ha-1). This treatment was also more profitable than the rest of the treatments, while the lowest profit was in N0S1.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26546The Agriculturists 2015; 13(1) 35-45
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • The Socio-economic Status of Horse Owners in Rural Areas of Bangladesh

    • Authors: M P Alam, M S A Bhuiyan, A K F H Bhuiyan
      Pages: 46 - 52
      Abstract: A study was conducted for a period of 60 days to understand the socio-economic status of the horse keepers and explore the opportunity of Indigenous horse rearing in 22 villages of Mymensingh, Tangail, Sherpur and Jamalpur districts in Bangladesh. A total of 200 horse keeping households were surveyed through one-to-one interview. A pre-tested questionnaire was used to collect information. Farmer exercised traditional knowledge on horse rearing that was used mainly for pulling cart, transportation, land tillage and sports purposes for their livelihood. Most of the horse keepers were experienced in horse rearing for 0.2 to 40 years. Among the horse keepers 54%  were landless followed by marginal (22.5%), small (12.5%),  medium (8%) and large (3%).Their main occupation was horse pulling cart (88%) and the income from horse pulling cart was different from season to season which ranged from TK 3,000 to TK 20,000  per month. In case of secondary occupation, 81.5% farmers were involved in agriculture sector and 9% farmers involved in horse pulling cart. The horse keepers were mostly illiterate (84.7%),   where the highest education level was S.S.C (1%).  This study revealed valuable information which would help in designing proper policy and plan for the improvement of horse genetic resources and their keepers in Bangladesh.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26547The Agriculturists 2015; 13(1) 46-52
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Efficiency of Marine Dry Fish Marketing in Bangladesh: A Supply Chain
           Analysis

    • Authors: Md. Mojammel Haque, Md. Golam Rabbani, Md. Kamrul Hasan
      Pages: 53 - 66
      Abstract: The marine dried fishes have the demand both in domestic and international market. Bangladesh has a great potentiality to earn huge foreign exchange by exporting marine dry fishes. The present study was designed to analyze the supply chain and to examine marketing efficiency of marine dry fish in Bangladesh. Data were collected from 170 stakeholders and 9 export oriented firms/agencies using face to face semi-structured interviews considering 9 major species of marine fishes. A number of FGDs were conducted to supplement the information collected through survey method. The study areas were purposively selected. Three types of market such as primary market, secondary market and consumer market were considered for data gathering. High priced fish demanded high marketing cost resulting higher marketing margin and profit compared to low priced fish. Processing and transportation costs were also higher for high valued species compared to the low valued ones. Marketing margin and marketing profit were very high in export market compared to domestic market. However, shorter supply chains (channels) were more efficient than longer supply chains.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26548The Agriculturists 2015; 13(1) 53-66
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Effect of Nitrogen and Potassium on the Root Growth, Nutrient Content and
           Yield of Mungbean (Vigna radiata L. Wilczek) under
           Waterlogged Condition

    • Authors: M R Amin, M A Karim, Q A Khaliq, M R Islam, S Aktar
      Pages: 67 - 78
      Abstract: An experiment was conducted with mungbean genotype IPSA-13 in the field of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during September, 2012 to November, 2012 to study the root growth, nutrient concentration and seed yield of mungbean as influenced by N and K under waterlogged conditions. Nutrient supply in the soil had significant impact on better recovery in root development of 4-day waterlogged plants. Development of adventitious roots was one of the adaptive responses of IPSA-13 mungbean genotype. Root length was decreased due to the anaerobic condition.  Plants waterlogged for 4-days allocated more dry matter in adventitious root development and hence root volume was higher in waterlogged plants. Root volume in flooded plants increased due to the development of adventitious roots. Root dry weight increased with combined application of N and K fertilizers. Flooded plants treated with 14 kg N ha-1 + 25 kg K ha-1 produced the highest TDM and seed yield, though the yield was statistically similar to that obtained when the levels of N and K were applied separately, as well as with that of 1% urea + 25 kg K ha-1.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26549The Agriculturists 2015; 13(1) 67-78
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Integrated Management of Seed borne Nematode (Aphelenchoides
           besseyi
    ) in T. Aman Rice (Oryza sativa L.)

    • Authors: Md Serajul Islam, Md Habibur Rahman, Md Mohashin Farazi, A T M S Hossain, Ayesha Sultana
      Pages: 79 - 86
      Abstract: Two experiments were conducted in the Nematology Laboratory of the Seed Pathology Centre and experimental field of the Department of Agronomy, Bangladesh Agricultural University (BAU), Mymensingh during 2004 to examine the influence of physical and chemical treatments on the seed borne nematode disease of rice. The integrated control with physical and chemical treatments against seed borne nematode (<i>Aphelenchoides besseyi</i>) causing white tip disease of rice varieties BR11 and Nizersial (T. Aman) rice revealed that farmer’s saved seeds of both the varieties treated simultaneously with brine solution, hot water and Furadan 3G resulted in enhanced plant height, root length, panicle length, number of grains per panicle, total number of spikelet’s per panicle,  grain yield and lower association of seed borne nematode. Better responses were found with farmer’s saved seeds treated with brine solution and hot water than field application of Furadan  3G, hot water treatment and treatment with brine solution having higher plant growth characters and yield of grains correspondingly with lower number of sterile and discolored spikelet’s and seed borne nematode compared to the control.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26550The Agriculturists 2015; 13(1) 79-86
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Preparation of Pineapple (Ananas comosus) Candy Using
           Osmotic Dehydration Combined With Solar Drying

    • Authors: Sultana Anjuman Ara Khanom, Md Mashiar Rahman, M Burhan Uddin
      Pages: 87 - 93
      Abstract: This study was conducted to develop pineapple candy prepared from fresh pineapple using 40, 50 and 60% sugar solution and then dried in solar drier. Acceptability of the product was also assessed. The thickness of pineapple slices were 0.5 and 1.0 cm. The pineapple slices were dipped into 40, 50 & 60% sugar solutions for overnight and then dried in solar drier. It was found that 0.5 cm thick of pineapple slices dried quickly than 1 cm thick slices. Sensory quality attributes of the prepared pineapple candy were analysed on the basis of colour, flvour, texture and overal acceptability using ANOVA test followed by DMRT test for identification of  the best pineapple candy. Samples having  0.5 cm slice, osmosed in 60 % sugar solution and 0.5 cm slice, osmosed in 50% sugar solution were the preferred samples with respect to quality attributes and ranked as “like very much”. The samples having 0.5 cm slice, osmosed in 60 % sugar solution  was the most acceptable among candies prepared under the study.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26551The Agriculturists 2015; 13(1) 87-93
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Evaluation of Different Drumstick Genotypes (Moringa
           sp.) Against Salt Stress

    • Authors: M A Latif, M Robbani, K Akhter
      Pages: 94 - 100
      Abstract: A pot experiment was conducted during March 2012 to February 2013 to evaluate the salt tolerance of drumstick (Moringa sp.) genotypes in a factorial split plot design. Two factors, water salinity was assigned in the main plot with 4 levels (control, 7, 10 and 13 dS/m) and10 drumstick genotypes of Bangladesh (Acc. no. 1 to Acc. no. 10) in the sub-plot with 3 replications. The data were collected for the vegetative growth, percent alive cuttings and necrosis and chlorosis of leaves on the 12thmonth of the study. The results indicated that the Acc. no. 4 from Satkhira and the Acc. no.  5 from Khulna were the best in all respects even at 10 dS/m salinity level. The results also revealed that most of the genotypes performed more or less well up to the 7 dS/m salinity but none at the 13 dS/m. No genotype showed sensitivity to the lowest salinity level. In addition, The highest concentration of total Na+ and Cl-  were observed in the shoots and the leaves of the Acc. no. 5 and Acc. no. 9 at 13 dS/m salinity level as well.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26552The Agriculturists 2015; 13(1) 94-100
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Effect of Banana Extract on Growth and Development of Protocorm Like
           Bodies in Dendrobium sp. orchid

    • Authors: M Obaidul Islam, Md. Serazul Islam, Md Abu Saleh
      Pages: 101 - 108
      Abstract: An experiment was carried out in Plant Tissue Culture Laboratory, Department of Crop Botany, Bangladesh Agricultural University, Mymensingh to investigate the effect of banana extract on micropropagation of  <i>Dendrobium</i> sp. var. Sonia orchid through PLBs. The experiment was conducted during July 2012 to October 2013. Half-Murashige and Skoog (1/2MS) medium were used as basal medium and the medium was supplemented with banana extract at 12.5, 25, 50, 100, and 200 ml L-1 with a control, where no banana extract was supplemented. The cultures were done in 100 ml conical flasks and maintain at 25°C with 30µ mol m-2 S-1 lighting provided by florescent tubes for 16 hours per day. Banana extract showed significant effect on growth and development of PLBs. Among the treatments, 100 ml L-1 banana extract enhanced new PLBs regeneration from explanted PLBs and growth and development of PLBs. Present research indicated that nutrient requirement for PLBs multiplication and plantlets growth of  Dendrobium orchid is quantitatively different in vitro. Finally, 100 ml L-1 and 25 ml L-1 of banana extract may be recommended as supplement into 1/2MS medium for PLBs multiplication and plantlet regeneration, respectively in vitro.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26553The Agriculturists 2015; 13(1) 101-108
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Seed Yield and Quality of Lowland Rice (Oryza sativa
           L.) as Influenced by Nitrogen from Organic and Chemical Sources

    • Authors: Amina Khatun, Hasina Sultana, A B M Jamiul Islam, Md Sultan Uddin Bhuiya, Md Abu Saleque
      Pages: 109 - 118
      Abstract: A field experiment was conducted at the Bangladesh Rice Research Institute (BRRI) experimental farm during boro season of 2010-11 to determine the effect of nitrogen from organic and chemical sources on rice seed yield and quality. Six treatments- (i) N-control, ii) Optimum dose of nitrogen (164 kg N ha-1) from urea, iii) 50% N from urea and 50% N from CD (cow dung), iv) 50% N from urea and 50% N from PM (poultry manure), v) 100% N from CD and vi) 100% N from PM were compared. The experiment was conducted in a randomized complete block design with four replications. Two boro varieties – BRRI dhan28 and BRRI dhan29 were used as test crops. The urea + PM treatment gave similar seed yields to that of urea in both the varieties. The PM treatment gave similar seed yield to that of urea + PM in BRRI dhan28, but BRRI dhan29 gave significantly lower seed yield in PM than the urea + PM. Sole cowdung or poultry manure application produced significantly lower seed yield than urea + PM treatment and sole urea application. The application of N from cowdung and poultry manure had no effect on rice seed quality as compared to that obtained with urea.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26554The Agriculturists 2015; 13(1) 109-118
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Cropping Pattern and Socio-Economic Study of Ethnic People in the Hilly
           Areas of Bangladesh

    • Authors: Joti Lal Barua, Nazrul Islam Khan, Sagarmay Barua, Sayed Mohammad Mohsin, M R Islam
      Pages: 119 - 126
      Abstract: The study was conducted at some hilly areas of Bangladesh during the period of January to May 2009 and during April to May, 2010. This was done to evaluate socio-economic condition of the ethnic people and to find out the existing cropping pattern in the hilly areas of Bangladesh. A total of 810 households from Rangamati, Khagrachari and Bandarban were selected randomly. Socio-economic profiles of the households indicated that the most household respondent belonged to thirty-forty five years age group followed by forty five- sixty years, fifteen- thirty years and sixty-seventy five years age group. This indicates that household respondents were younger (thirty-forty five years) in the study areas. It was found that, among the tribal people Marma were found highest rate of illiteracy followed by Shaontal, Tanchanga, Chakma, and Tripura. The tribal people of Tripura were not found to be below Primary level in the study area. The percentage of agriculture and service were found equal in Chakma tribal people in the study area. The Marma people were not found as a service holder because of their low education level. Cultivable land use pattern among the ethnic people revealed that out of 810 ethnic households 222 households were involved in cultivation (27.4%). It also showed that 55.4% households harvested single crop, 26.3% households harvested double crops, 10.8% households harvested triple crops in a year and only 7.5% households practiced jhum cultivation.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26555The Agriculturists 2015; 13(1) 119-126
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Efficacy of Herbicides in Controlling Weeds in Mungbean (Vigna
           radiata
    L. Wilczek) Field

    • Authors: Shamima Aktar, M A Hossain, M R Amin, F Khatun, A Begum
      Pages: 127 - 132
      Abstract: A field experiment was conducted at the Pulse Research Centre of Bangladesh Agricultural Research Institute, Ishurdi, Pabna during Kharif-II season of 2010 to evaluate the efficacy of five herbicides for controlling weeds associated with mungbean (BARI Mung-6). The five herbicides such were: Paraxon (27.6% WV Paraquat dichloride salt), M-clor 5G (Butaclor), Topstar 40 WP (40% Oxadiargyl), Hammer 24 EC (Carfentrazone ethyl), and Panida 33 EC (Pendimethalin) with one control (no herbicide and also no weeding). Weed was collected species wise during weeding at 40 days after sowing from 1 m2 area of each plot and oven dried to estimate weed growth. Among the herbicides, Panida performed the best for reducing the number and dry weight of weeds. The maximum reduction of weed population, the highest weed control efficiency, seed yield (1222 kg ha-1), and maximum economic benefit were also obtained in the treatment receiving Panida 33 EC @ 2 ml L-1.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26556The Agriculturists 2015; 13(1) 127-132
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Value Chain Analysis of Exportable Okra (Abelmoschus
           esculentus
    L.) from Bangladesh

    • Authors: Md Saikul Islam, A N Faruq, M M H Chowdhury, Mohammad Shahjahan, K Kabir
      Pages: 133 - 139
      Abstract: A survey was conducted to assess the export supply and value chain analyses of okra (<i>Abelmoschus esculentus</i> L.) in Bangladesh. The survey was consisted of primary and secondary data from semi-structured interview of key persons involved in the supply chains of export market of okra and from the review of relevant reports and literature. Primary data were collected from 40 middlemen (from Ulokhola-10, Kawranbazar-7, Shambazar-8, Jatrabaribazar-5, Chandina-10), 5 service providers and 20 okra exporters of Dhaka city. It was found that the supply chain was fragmented and complex. The middlemen predominantly controlled the supply chains. Post-harvest management was poor, resulting low quality of the produce and low prices in the export market. The supply chain indicated that, the growers consumed 7.8% of their own product while 92.2% was sold out. About 28% farmers sold their okra at the field/farm-gates and 72% was sold in the local markets.   The value chain analyses (VCA) revealed that, the net profit margin was 15.77 Tk/kg for both the UK and the Middle East markets whereas the net profit was 5.86 Tk/kg in local markets. The cost of airfreight was highest (63.97%) of all costs followed by the production cost of okra (16.85%) and the cost of packing (13.40%).
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26557The Agriculturists 2015; 13(1) 133-139
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Factors Affecting Adoption of Improved Sesame Technologies in Some
           Selected Areas in Bangladesh: An Empirical Study

    • Authors: M A Monayem Miah, Sadia Afroz, M A Rashid, S A M Shiblee
      Pages: 140 - 151
      Abstract: This study was undertaken to assess the adoption level as well as farmers’ attitude towards cultivating Bangladesh Agricultural Research Institute (BARI) developed improved sesame varieties and its technology management as well. Keeping this view in mind, primary data were collected from major three sesame growing areas of Bangladesh namely, Comilla, Jessore, and Faridpur districts. A total of 540 samples, selected using stratified random sampling method, were interviewed using pre-tested and structured questionnaires.  Results reveal that the improved sesame seed adoption level is around one fifth of the total sesame cultivation.  The adoption of relating technologies regarding input usage and agronomic practices also depicted similar characteristics due to not taking up recommended improved seed package. Analysis also showed that availability of family labor, application of improved seeds and monitoring and supervision of extension personnel’s have significant contribution on improved seed adoption levels. Although farmers opined that they would be adopting the improved sesame seeds in the upcoming fostering season in view of expanding yields, profits, labor productivity and efficient cultivation.  However, many farmers have articulated their concern about unavailability of improved sesame seeds at the farm levels is a major barrier about adopting improved sesame technology.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26558The Agriculturists 2015; 13(1) 140-151
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Development of Microsatellites: A Powerful Genetic Marker

    • Authors: M Moniruzzaman, R Khatun, Zahira Yaakob, M S Khan, A A Mintoo
      Pages: 152 - 172
      Abstract: The tandem repeats, conserved short segments of DNA, which are found in all prokaryotic and eukaryotic genomes, are called microsatellites. It is also known as variable number tandem repeats (VNTRs), simple sequence repeats (SSRs) and short tandem repeats (STRs). Microsatellites present in both coding and non-coding regions of a genome. The high polymorphism of microsatellites makes them powerful genetic markers for genome mapping of many organisms. It is also suitable for ancient and forensic DNA studies for population genetics and conservation of biological resources. The major disadvantage of microsatellites is that for the first time they need to be isolated de novo from most species being examined. The task of microsatellite isolation is quite cumbersome involving in terms of effort and time, because it traditionally involves screening of genomic libraries. Cross-species amplification, Mining microsatellites from nucleotide sequenced data and Genomic library- based method are general methods of microsatellite isolation.  Cross-species method may not effective for all species, Data mining is not applicable if there is no or limited data of DNA sequence. Genomic library based method is the best choice. Traditional protocol, primer extension protocol, selective hybridization, and Fast Isolation by AFLP of Sequences containing repeats (FIASCO) are the protocols of microsatellite development based on genomic library.  FIASCO is the best protocol ever developed.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26559The Agriculturists 2015; 13(1) 152-172
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Challenges of Seed Potato (Solanum tuberosum L.)
           Production and Supply System in Bangladesh - A Review

    • Authors: Md. Rayhan Shaheb Shaheb, M Mahbuba Begum, Kabir Uddin Ahmed, Mahmudul Islam Nazrul, Siert G Wiersema
      Pages: 173 - 188
      Abstract: Potato (<i>Solanum tuberosum</i> L.) is an important vegetable that plays a vital role in global food and nutritional security and alleviation of poverty, especially in Bangladesh. Although, the soil and climatic conditions of  Bangladesh are favourable for potato cultivation, every year production is hampered due to use of low quality seeds. Seed potato industry is developing in Bangladesh. However, only 5-10% quality seeds are being produced and used by the potato farmers. Quality seeds alone can contribute to increased yield by 15-20%. Both public and private sectors together supply only 5% quality seed potato and the rest 95% is almost of low quality produced by the farmers themselves. In prioritizing different issues of agriculture, challenges of production and supply of quality seed to the farmers should be considered as a top priority issue. For increasing quality seeds, the whole seed system needs to be reviewed. The present work was an attempt to review the seed potato production systems, supply system  and also to identify the possible challenges and policy implications in regards of the problems on seed potato in Bangladesh.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26560The Agriculturists 2015; 13(1) 173-188
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
  • Evaluation of Surface Waters Quality Obtained from Different Sources of
           Mymensingh District of Bangladesh

    • Authors: Zannatul Ferdous, M F Haque, M A Hosain, M M Rahman, Abu Sayed
      Pages: 189 - 195
      Abstract: The present study was conducted to assess some  chemical properties and heavy metals of  surface waters collected from different sources at Bangladesh Agricultural University Campus and Mymensingh Sadar Upazila  for common use.  Twelve water samples were collected from 4 different locations during February to April 2011 for analyzing their chemical quality parameters. The recorded values of pH, EC (Electrical Conductivity), TDS (Total Dissolved Solid), DO (Dissolved Oxygen), As, Pb and Fe were found to range from 6.153 to 7.043, 0.194 to 0.679 mS/cm,106.333 to 389.333 ppm, 4.433 to 4.9 ppm, 0.064 to 1.756 ppb, 0.00053 to 0.00083 ppm and 0.567 to 1.795 ppm, respectively.  pH and TDS of the surface water were within the standard value but other parameters such as As, Pb, and Fe were significantly higher than the standard for drinking water.   The correlation analysis among chemical and heavy metal properties indicated that all the parameters had significant contribution to pollute the water except DO. The correlation between TDS and EC was strongly significant (r = 0.99**). pH showed positive significant correlation with EC and TDS. Fe showed negative (r = -0.636) significant correlation with As. The above findings show that the surface water in Mymensingh area is being gradually polluted by unplanned discharge of chemicals and heavy metals contained effluents. It might be concluded that the water is not so harmful yet for irrigation, aquaculture and livestock usage.
      DOI : http://dx.doi.org/10.3329/agric.v13i1.26563The Agriculturists 2015; 13(1) 189-195
      PubDate: 2016-01-24
      Issue No: Vol. 13, No. 1 (2016)
       
 
 
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