Journal of the Asiatic Society of Bangladesh, Science最新文献

{"title":"Evaluation of Different Mutants Against Insect and Mite Pests With Natural Enemies in Coastal Jute Ecosystem","authors":"Mmh Khan","doi":"10.3329/jasbs.v44i1.46543","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46543","url":null,"abstract":"Jute is a rapid growing agricultural fiber crop and renewable source of biomass. The study was conducted to evaluate different jute mutants against insect and mite pests with associated natural enemies. Results revealed that 8 insect and mite pests and 8 natural enemies were recorded from coastal jute ecosystem. Jute hairy caterpillar and yellow mite were found to be the most damaging pests in jute field. Significantly the lowest per cent plant infestation per 5 rows was recorded in mutant BJC-214 (14.37) followed by BJC-7370 (14.81) and the highest per cent plant infestation (30.77) was found in mutant VM-1. Significantly the lowest per cent leaf infestation was in mutant HC-3 (25.40) followed by HC-95 (31.08) while the highest per cent leaf infestation per plant was recorded in mutant BJC-83 (46.30). In case of leaf area damage, the lowest per cent was observed in mutant HC-3 (9) followed by CVL-1 (10) and the highest was in mutant CVE-3 (45) followed by mutant 0-72 (30). Among different mutants, HC-3, CVL-1 and BJC-214 were found to be less infested by jute hairy caterpillar and these mutants could be used for multilocational trial for final recommendation as the tolerant mutants. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 23-33, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128546377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Larvicidal Impact of Some Local Medicinal Plant Extracts Against Aedes Aegypti (L.)","authors":"M. Sharower, M. Latif","doi":"10.3329/jasbs.v44i1.46546","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46546","url":null,"abstract":"The larvicidal potential of different solvent (hexane, chloroform, ethyl acetate, acetone and methanol) crude leaf extracts of five plants (Blepharis maderaspatensis, Elaeagnus indica, Maesa indica, Phyllanthus wightianus and Memecylon edule) were tested against the fourth-instar larvae of Aedes aegypti. All the tested extracts showed moderate to good larvicidal activities. However, the maximum larval mortality was detected in acetone extract of E. indica (LC50 90.89, LC90 217.21 and LC99 441.88 ppm) followed by M. indica acetone extract (LC50 173.21, LC90 289.86 and LC99 441.04 ppm). The results revealed that larvicidal properties of the four selected plants and encourages further investigation for the bioactive compounds that might possess good larvicidal properties in pure form. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 61-67, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131252931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neonatal, Infant and Under-Five Mortality: an Application of Cox Proportional Hazard Model to Bdhs Data","authors":"S. Nilima, R. Sultana, S. Ireen","doi":"10.3329/jasbs.v44i1.46541","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46541","url":null,"abstract":"This study utilizes data derived from the Bangladesh demographic and health survey (BDHS), 2014 to identify the determinants of neonatal, infant and under-five mortality in Bangladesh. Log-rank test has been used for bivariate analysis. Regression analysis has been performed by applying Cox proportional hazard model to the data. It has been found from the analysis that maternal education, region, exposure to NGO activities are significant determinants of under-five and infant mortality whereas region, gender of child, child’s size at birth play significant role in reducing neonatal mortality in Bangladesh. The findings of the study suggest that policymakers should give priority on maternal education, region, and child’s size at birth as well as exposure to NGO activities to reduce neonatal, infant and under-five mortality in Bangladesh. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 7-14, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128177961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Russell’s Viper (Daboia Russelii) in Bangladesh: Its Boom and Threat to Human Life","authors":"F. Ahsan, Abu Z. Saeed","doi":"10.3329/jasbs.v44i1.46542","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46542","url":null,"abstract":"The occurrence of Russell’s viper (Daboia russelii Shaw and Nodder 1797) in Bangladesh is century old information and its rarity was known to the wildlife biologists till 2013 but its recent booming is also causing a major threat to human life in the area. Recently it has been reported from nine districts (Dinajpur, Chapai Nawabganj, Rajshahi, Naogaon, Natore, Pabna, Rajbari, Chuadanga and Patuakhali) and old records revealed 11 districts (Nilphamari, Dinajpur, Rangpur, Chapai Nawabganj, Rajshahi, Bogra, Jessore, Satkhira, Khulna, Bagerhat and Chittagong). Thus altogether 17 out of 64 districts in Bangladesh, of which Chapai Nawabganj and Rajshahi are most affected and 20 people died due to Russell’s viper bite during 2013 to 2016. Its past and present distribution in Bangladesh and death toll of its bites have been discussed. Its booming causes have also been predicted and precautions have been recommended. Research on Russell’s viper is deemed necessary due to reemergence in deadly manner. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 15-22, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131324012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Land Suitability Assessment for Maize (Rabi) Cultivation in Cox’s Bazaar Sadar Upazila, Cox’s Bazaar, Bangladesh","authors":"A. Hoque, Khandaker Tanvir Hossain","doi":"10.3329/jasbs.v44i1.46544","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46544","url":null,"abstract":"Based on the various agro-edaphic and agro-climatic characteristics, the suitability of maize cultivation during winter season has been determined in Cox’s Bazaar Sadar Upazila. For this purpose, under the existing climate conditions, considered agro-edaphic factors of various geomorphic units are soil permeability, effective soil depth, available soil moisture, soil reaction (pH), soil salinity, slope etc. Long-term climate attributes of the study area were used to determine the overall climate suitability classes, and the combined land suitability classes for maize (rabi) cultivation have been determined through the adjustment of the agro-edaphic and agro-climatic suitability criteria. Thus, recognized combined land suitability classes for maize (rabi) cultivation in the present study area are ‘highly suitable’, ‘suitable’, and ‘moderately suitable’. A total of 896 hectares land has been found as ‘highly suitable’ for maize cultivation in Cox’s Bazaar Sadar Upazila while approximately 4403 and 11,000 hectares have been identified as ‘suitable’ and ‘moderately suitable’, respectively. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 35-51, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133882432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Some Aspects of Reproductive Biology of the Mudskipper Apocryptes Bato From the Coast of Chitagong","authors":"Mohammed Sadequer Rahman, Sohel Parvez, M. Rahman, R. Nabi, Wahidul Alam","doi":"10.3329/jasbs.v44i1.46549","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46549","url":null,"abstract":"Some aspects of reproductive biology of the mudskipper Apocryptes bato (Hamilton 1822) from the coastal waters of Chittagong, Bangladesh was conducted. Disproportionate occurrence of male and female (1.20 : 1) was observed in the number of two sexes. A prolonged spawning season was found from June to early October with a single peak. The aspects in the ovary indicate one complete spawning of females in a single spawning season. The fecundity was found to vary from 7453 - 31195 with an average of 17590 ± 6867. Significant coefficient of correlation between the diameters of the eggs of corresponding anterior, middle and posterior regions of the right and left ovaries indicated the simultaneous release of eggs from both the ovaries. A much closer relationship of fecundity and the significant ‘t’ values indicated fecundity increases with the increase of total length, standard length, body weight and gonad weight. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 91-99, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122125030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Probiotics on Growth and Production of Monosex Tilapia (Oreochromis Niloticus) in Nylon Net Cages at Dekar Haor, Sunamganj, Bangladesh","authors":"AT Dekar Haor, Sunamganj, Bangladesh, P. Das, M. S. Islam, M. Biswas","doi":"10.3329/jasbs.v44i1.46547","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46547","url":null,"abstract":"To assess the effect of probiotics on growth, survival rate and production performance of all monosex tilapia (Oreochromis niloticus) for a period of 120 days in 2016 in nylon net cages placed in Dekar haor of Sunamganj district. The study was categorized into four treatments as T1 (brand a), T2 (brand b), T3 (brand c) and T4 (control) based on probiotics and each having three replicates. Cages were stocked with nursed male tilapia fry at a density of 35 nos./m3 with average size of 14.33 ± 6.41 - 16.33 ± 3.15 g. Tilapia of all the cages were fed with commercial mega floating feed at a decreasing rate of 10 - 5% of total biomass thrice daily. Feed was supplemented with probiotics at a rate of 0.5 g/kg. Comparatively higher growth (307.33 ± 33.92 g), survival rate (97.6 ± 4.90%), yield (10.5 ± 1.15 kg/m3), net profit (Tk.798.96 ± 90.85/m3) and lower food conversion ratio (1.16) were secured in T3 than that of other treatments, which were manifolds higher than the earthen freshwater and brackish waterbodies. Therefore, results of the study reveal that probiotics may be used in aquaculture for increasing fish production. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 69-78, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124934761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prevalence of Fungi With Seeds of Twenty Brri Released Rice Varieties and Seed Quality Analysis","authors":"T. Sultana, S. Shamsi, M. Bashar","doi":"10.3329/jasbs.v44i1.46548","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46548","url":null,"abstract":"A total of 20 rice varieties of BRRI dhan 56 to BRRI dhan 75 were collected from Bangladesh Rice Research Institute (BRRI) for seed quality analysis, detection and identification of fungi associated with seeds of selected rice varieties. Dry inspection indicated that the percentage of pure seeds ranged from 90 - 100. The highest percentage of pure seed was found in BRRI dhan 66 and BRRI dhan 70 (100) and lowest in BRRI dhan 68 (90). A total of 21 fungal species were isolated from the selected rice varieties following “Blotter and Tissue Planting” methods. They were Alternaria padwickii, A. tenuissima, Aspergillus flavus, A. fumigatus, A. niger, A. ochraceus, A. clavatus, A. terreus, Bipolaris sorokiniana, B. spicifera, Chaetomium globosum, Curvularia lunata, Drechslera oryzae, Fusarium sp.1, Fusarium sp. 2, Nigrospora sp., Penicillium sp., Pestalotiopsis guepinii, Rhizopus stolonifer, Syncephalastrum racemosum and Trichoderma viride. Among them Penicillium sp., Drechslera oryzae, Aspergillus ochraceus, A. flavus, A. fumigatus, A. niger and Fusarium sp.1 were predominant in most of the rice varieties. In Tissue Planting method Drechslera oryzae showed the highest mean per cent frequency (6.69) and lowest was in the Bipolaris sorokiniana (0.41). Maximum total fungal association was recorded in variety BRRI dhan 61 (156.79%) and minimum in BRRI dhan 66 (24.69%). In Blotter method Penicillium sp. showed the highest mean per cent frequency (7.56) and lowest was in Rhizopus stolonifer (1.71). Maximum total fungal association was recorded in BRRI dhan 63 (147.37%) and minimum in BRRI dhan 65 (19.21%). Germination percentage of seeds was highest in BRRI dhan 66 (88) followed by BRRI dhan 67 (82), BRRI dhan 74 (80) and lowest in BRRI dhan69 (24). The percentage of seedling mortality was highest in BRRI dhan 63 (42) and lowest in BRRI dhan 74 (8.0) followed by BRRI dhan 67 (10). Correlation coefficient and regression analysis indicated that prevalence of fungi has significant effect on seed germination and seedling mortality. The present research work suggests that out of 20 BRRI rice varieties, BRRI dhan 65, BRRI dhan 66, BRRI dhan 67 and BRRI dhan 74 showed better performances on the basis of percentage of pure seed, fungal association, seed germination and seedling mortality. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 79-89, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127878561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biochemical Composition of Some Selected Aquatic Macrophytes Under Ex-Situ Conditions","authors":"H. Hazra, Almujaddade Alfasane, Sharmin Kauser, Umme Fatema Shahjadee, M. Khondker","doi":"10.3329/jasbs.v44i1.46545","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46545","url":null,"abstract":"Ex-situ culture studies of five selected aquatic macrophytes, namely Nymphaea nouchali Burm. f., Enhydra fluctuans Lour., Ipomoea aquatica Forsk., Hygroryza aristata (Retz.) Nees ex Wight & Arn. and Limnocharis flava (L.) Buch. were carried out. Comparing the biochemical composition of the above mentioned five aquatic macrophytes, on an average, Enhydra fluctuans was found to contain highest amounts of proteins (18.20%) and Ipomoea aquatica contains highest amounts of carbohydrate (58.60%). Lowest amounts of proteins (14.35%) were recorded in Hygroryza aristata and Limnocharis flava. On the other hand lowest amounts of carbohydrates were obtained in Nymphaea nouchali. Ipomoea aquatica contained highest amounts of energy (321.23 kcal) and lowest amount was observed in Limnocharis flava. The five aquatic plants were low in fiber, fat and also in ash. Among all the five aquatic macrophytes, highest values of calcium and phosphorus were found to be present in Limnocharis flava and iron was highest in Nymphaea nouchali. Lowest values of calcium and phosphorus were present in Ipomoea aquatica and lowest amount of iron was present in Limnochris flava. The present study demonstrated that, these five aquatic macrophytes are the important sources of carbohydrate, protein and minerals, which are suitable for incorporation in human diet and feed also. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 53-60, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"48 11","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131436195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Newly Recorded Freshwater Diatioms (Bacillariophyceae) From Two Wetlands of District Sirajganj, Bangladesh","authors":"K. Nahar, M. Khondker","doi":"10.3329/jasbs.v44i1.46540","DOIUrl":"https://doi.org/10.3329/jasbs.v44i1.46540","url":null,"abstract":"A total 9 diatoms taxa newly reported from the sediments of Joysagar and Sitlai Beel has been reported. These are Navicula cuspidata var. heribaudii Peragallo, N. grimmei Krabke, Navicula americana Ehr, Pinnulara major (Kutz.) Cleve, P. braunii (Grun.) Cleve. P. brevicosta Cleve, P. divergens, P. acrosphaeria Brebisson, P. stauroptera (Grun.) Cleve and P. hemiptera (Kutz.) Cleve. \u0000Asiat. Soc. Bangladesh, Sci. 44(1): 1-6, June 2018","PeriodicalId":186946,"journal":{"name":"Journal of the Asiatic Society of Bangladesh, Science","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133843728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}