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Articles by M.S. Hossain
Total Records ( 12 ) for M.S. Hossain
  M.S. Hossain , M. Alamgir and M.S. Hossain
  Spatial data are inherently complex because they deal with location as well as spatial variation, distribution, and interaction of the spatial features in the environment. Further, they are characterized by their multidimensional nature, involving large storage of data and therefore high processing cost. Spatial database are developed using relational data model, resulting unacceptable performance during retrieving and manipulation of data. On the other hand, object-oriented data model can be seen as an appropriate alternative at this point. The paper will present a comparison between the two approaches, in the light of their database architectures, in handling spatial data. This is followed by the object-oriented presentation of the implementation framework for one of the complex spatial data models (polygon). The complexity analysis between relational and object-oriented approaches taking the mentioned data model (polygon) into account will also be presented. This will demonstrate that object-oriented approach provides a better way in retrieving spatial data.
  K.M. Khalequzamman , Md. Khalim Uddin , M.S. Hossain , M.S. Islam and M.H. Rashid
  The study was laid out to find out the peak disease incidence period of leaf spot of Sapota (Achras sapota) and to evaluate the effect of six fungicides in controlling the disease. A total of five sprays were applied at 15 days intervals during dry season (November-January). It has been observed that the peak incidence period of leaf spot disease was higher in November to January. All fungicides were found effective significantly in controlling leaf spot disease over control. Among the fungicides, Bavistin (0.1%) and Dithane M-45 (0.2%) were found better in controlling the disease.
  S.M. Bokhtiar , M.S. Hossain , K. Mahmud and G.C. Paul
  Four field experiments were conducted under different Agro-ecological zones (AEZs) of Bangladesh at Ishurdi (AEZ 11), Jamalpur (AEZ 9), Rajshahi (AEZ 11) and Thakurgaon (AEZ 1) in 2001-2002 cropping season. The main aims of the studies were to determine the fertilizer requirements on productivity of cane and intercrops (potato and onion) and their economics under sugarcane based cropping systems. Cane yield was enhanced when it was intercropped with potato and onion for the residual effect of applied fertilizer to intercrops. Net economic return was greater in cane intercropped with potato and onion over sole crop for all the experiments. Intercropping potato with sugarcane using FRG’97 rates of fertilizer for cane (130 kg N, 35 kg P, 60 kg K, 20 kg S and 3 kg Zn ha-1) and potato (50 kg N, 10 kg P and 20 kg K ha-1) gave higher economic benefit at Ishurdi site. In Jamalpur site, sugarcane intercropped with potato following fertilizer rates based on BSRI’98 for cane (150 kg N, 42 kg P, 100 kg K, 30 kg S and 2 kg Zn ha-1) and potato (50 kg N, 10 kg P and 40 kg K ha-1) gave the highest net profit. But, the treatment received fertilizers as per FRG’97 showed higher economic benefit from sugarcane-onion intercropping systems both at Rajshahi and Thakurgaon sites.
  K.M. Earfan Ali and M.S. Hossain
  In this study attempt has been made to formulate a model for environmental factors influences the gross and net technical efficiencies of wheat production function in Bangladesh. The environment has a direct influence on the production structure and model the technology by introducing some representative variables aside the production factors. Technical efficiencies measures by frontier model which is influences of environmental factors. The inefficiency effects are not identically distributed. A more appropriate approach involves the specification of a model in which both relations are estimated in a single stage.
  M.N. Amin , M.M. Rahman , K.W. Rahman , R. Ahmed , M.S. Hossain and M.B. Ahmed
  The leaf base explants from the in vitro established shoot cultures were induced to form callus and subsequently to differentiate into shoots on MS medium supplemented with different concentrations and combinations of cytokinins and auxins. The cultured explants produced calli from their cut margins within four weeks of incubation on media supplemented with 0.5-3.0 mg L-1 2,4-D alone and in combination with 0.5-3.0 mg L-1 BA. Maximum number of shoot buds with optimum callus growth was observed on MS medium containing 1.0 mg L-1 BA and 0.1 mg L-1 NAA after six weeks of culture. Rooting was induced in the in vitro regenerated shoots on 2 MS medium with different concentrations and combinations of NAA, IBA or IAA. Rooting performance was best when the microshoots were rooted on 2 MS medium containing 0.2 mg L-1 IBA + 0.2 mg L-1 NAA. The regenerated plantlets were successfully transferred to soil and percentage of their survivability under ex vitro condition was almost ninety.
  M.S. Rahman , Kuasha Mahmud , M.S. Hossain and M. Eunus
  An experiment was carried out at Modhupur agro-ecological zone during the period from October 1995 to December 1996 in order to study the effect of different types of settling of different varieties on the yield and yield contributing characters of sugarcane. The yield and yield contributing characters were influenced by the variety and the different types of settling. Results revealed that the variety Isd 16 exhibited the best performance in terms of number of millable cane, weights, heights and finally cane yield. The local variety Misrimala produced higher number of tillers and lower number of millable cane than Isd 16 but yet it produced significantly higher cane girths and weights. The modern varieties Isd 16 and Isd 18 produced higher numbers of millable canes than Misrimala. The polythene bag settling appeared superior to two eyed soil bed settling following by one eyed soil bed settling. The variety Isd 16 produced the highest yield (144.5 t ha-1) with polythene bag settling. In contrast, one eyed soil bed settling yielded the lowest (112.6 t ha-1) with Isd 21.
  S.M. Luthfur Rahman , G.H. Ghose , M.A. Rahman , M.A.I. Khan and M.S. Hossain
  A study on the performance of five genotypes of exotic carambola namely, AC0012, AC0013, AC0014, AC0010 and AC0011 was conducted at the Regional Horticulture Research Station, Akbarpur, Moulvibazar for two years (1998 and 1999). The genotype produced significantly higher plant-1and ha-1 yield over all the genotypes tested. Number of fruits plant-1 was also significantly higher (770.5) in AC0012 than all the genotype except AC0013 (560.5). The genotype AC0012 produced the largest fruit (112.70 g) with maximum size (10.39 x 6.52 cm) while AC0014 produced the smallest fruit (70.75 g) with minimum size (9.16 x 5.28 cm). However, other genotypes produced medium sized fruits ranging from 77.75 to 104.70 g. All the genotypes gave cream fleshed fruits. Texture of flesh of ripe fruit was medium crispy in AC0014, crispy in AC0010 and AC0011 and soft in others. TSS of fruit juice varied from 5.08°B in AC0010 to 7.12° B in AC0012.
  M.R. Amin , M. Mostofa , K. Rafiq , M.S. Hossain , M.M. Hasan and M.L. Sharmin
  The research work was carried out to investigate the effects of oral administration of glucocorticoids (dexamethasone and prednisolone), NSAIDs (aspirin and paracetamol) and sulfonylureas (gliclazide and glibenclamide) on body weight and blood glucose in mice. Out of seven groups of mice (each containing 5 mice), one group was kept as control without giving any drug. Another six groups of mice received separately dexamethasone (Oradexon®, 3.5 mg kg-1 b.wt.) prednisolone (Deltasone®, 8 mg kg-1 b.wt.), aspirin (Ecospirin®, 620 mg kg-1 b.wt.), paracetamol (Napa®, 333 mg kg-1 b.wt.), gliclazide (Comprid®, 64 mg kg-1 b.wt.) and glibenclamide (Glucotab®, 16 mg kg-1 b.wt) orally along with normal feed. A significant (p<0.05) reduction of body weight was recorded on 7th day following administration of dexamethasone, gliclazide and glibenclamide in mice. This reduction was highly significant (p<0.01) on 21st, 42nd and 70th day following dexamethasone, gliclazide and glibenclamide treated groups. Similarly prednisolone significantly (p<0.01) reduced body weight of mice in whole experimental period. A significant (p<0.01) increase of the blood glucose level was found due to dexamethasone, prednisolone, aspirin and paracetamol administration on 7th , 21st, 42nd and 70th day. On the other hand, a significant (p<0.01) decrease of blood glucose level was found in mice treated with gliclazide and glibenclamide in whole experimental period. It may be concluded that oral administration of glucocorticoids, NSAIDs and sulfonylureas have variable effects on blood glucose level in mice.
  M.Z. Alam , M.S. Rahman , M.E. Haque , M.S. Hossain , M.A.K. Azad and M.R.H. Khan
  The study was conducted to investigated the effect of irrigation and irrigation on growth and yield of wheat (cv. Kanchan). The results revealed that both the irrigation and nitrogen gave significant (p<0.05) effect on all studied growth parameters such as plant height (90.09 and 90.42 cm), number of tillers plant-1 (3.21 and 3.20), leaf area index (LAI) (1.37, 1.55 at 60 DAS and 3.73, 4.77 at 75 DAS), crop growth rate (CGR) (282.10, 333.13 mg day-1 plant-1 at 60-75 DAS and 158.99, 177.35 mg day-1 plant-1 at 75-90 DAS) and relative growth rate (RGR) (0.108, 0.1098 mg mg-1 day-1 at 60-75 DAS and 0.021, 0.022 mg mg-1 day-1 at 75-90 DAS). Among the yield contributing characters the number of effective tillers plant 1 (2.89 and 2.92), number of non effective tillers plant-1 (0.52 and 0.67), number of non-fertile spikelets spike-1 (2.44 and 2.51), grain yield (2.69 and 2.50 t ha-1) and harvest index (46.55 and 45.25%) were significantly influenced by irrigation as well as nitrogen level. The increments of grain yield mainly due to increase in number of effective tillers plant-1.
  M.S. Hossain and M.G. Mortuza
  The chemical composition (major constituents, protein solubility profile, macro- and micro-nutrients, fat characterizing parameters and fatty acids profile) of cotyledon of Kalimatar (a local strain of faba bean) was investigated to assess its nutritive quality. Exotic counterpart of this local land race (Vicia faba L.) was also included in this study to compare their nutritive quality. A little variation in nutrient contents between these two varieties was found. The local faba bean cotyledon contained 27.67% crude protein, 3.12% crude fat, 2.48% crude fibre, 5.67% ash, 4.97% total sugar and 45% starch. On the other hand, exotic faba bean cotyledon contained 27.17% crude protein, 3.29% crude fat, 1.12% crude fibre, 5.46% ash, 4.15% total sugar and 46.16% starch. The protein fraction also varied between these varieties; globulin was followed by albumin and glutelin and accounted for 79.32 and 75.30%, 6.56 and 6.47% and 5.17% and 5.87% in local and exotic varieties, respectively. Prolamin content was negligible, which accounted for 0.59 and 0.60% in local and exotic cotyledon, respectively. Essential minerals (macro- and micronutrients), such as, calcium (Ca), magnesium (Mg), potassium (K), phosphorus (P), sulphur (S), boron (B), copper (Cu), iron (Fe), manganese (Mn) and zinc (Zn) contents were considerably different from each other between these varieties. Local faba bean cotyledon contained 0.07% Ca, 0.18% Mg, 1.73% K, 0.88% P, 0.04% S, 6.37 ppm B, 15.13 ppm Cu, 63.25 ppm Fe, 10.33 ppm Mn and 30.45 ppm Zn. On the contrary, exotic faba bean cotyledon contained 0.05% Ca, 0.15% Mg, 1.52% K, 0.86% P, 0.03% S, 5.39 ppm B, 13.59 ppm Cu, 61.68 ppm Fe, 9.67 ppm Mn and 32.41 ppm Zn. Oil characterizing parameters of these two varieties were more or less similar. Oil content, saponification number and iodine value of local and exotic faba bean varieties were respectively 1.36 and 1.33%, 192.61 and 109.90 and 190.39 and 107.63. Among the fatty acids analyzed, linoleic acid was found to be rich in this legume which accounted for 60.75 and 54.03% in local and exotic faba bean cotyledon, respectively. The second highest fatty acid was linolenic acid (14.30 and 21.10%) followed by palmitic acid (11.59 and 9.73%) in local and exotic faba bean cotyledon, respectively. This study shows that both the cotyledons are rich in protein, reducing sugar, starch, K, Fe and linoleic acid content. This study also reveals that local land race of faba bean is comparatively better in nutrients content than its exotic counterpart.
  U.K.S. Khanam , M. Hossain , N. Ahmed , M.M. Uddin and M.S. Hossain
  The screening of thirty tomato varieties/lines to tomato fruit borer, Helicoverpa armigera (Hub.) infestation in relation to their morphological characters was conducted in different laboratories of BAU and Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh during rabi season, November 1999 to March 2000. The tomato fruit borer infestation varied significantly among the varieties/lines and also with the age of the tomato plants. Among the varieties/lines, V-29 and V-282 were found moderately resistant and susceptible, respectively. Plant height, stem diameter, total number of branches/plant, total number of leaves/plant, 2nd leaf area, total leaf chlorophyll, number of leaf hair and number of fruits/plant of V-29 line were 81.74 cm, 1.45 cm, 14, 453, 19.58, 1.13 mg/g, 12 and 48, respectively. Again the aforementioned characters for V-282 line were 80.74 cm, 1.18 cm, 9, 396, 21.57, 1.24 mg/g, 17 and 30, respectively.
  L. Yasmin , M.H. Rashid , M. Nazim Uddin , M.S. Hossain , M.E. Hossain and M.U. Ahmed
  Extract of neem (Azadirachta indica.L) seed was used to control the root knot nematode Meloidogyne javanica of sweet gourd. Extract of neem seed was found to be leathal to the juvenile of M. javanica compared to the extracts of bark and leaf of neem. Pot experiment with standard `S` concentration of all the extracts both in side drench and root-dipping methods appeared to give significant suppression in root galling, L2 and L3 population of the nematode. Identical response among the treatments with respect of plant growth characters was attributed to the synthesis of less toxic metabolites in the immature neem seeds used in the study. Positive correlation between gall number and eggmass indicated higher activity of the nematode allowing more adult females to develop with the production of increased number of eggmasses.
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