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Articles by M.S. Alam
Total Records ( 15 ) for M.S. Alam
  M.J. Islam , M.A. Islam , S. Akter Tania , S.R. Saha , M.S. Alam and M.K. Hasan
  Twenty two garlic genotypes of local and exotic origin was trailed during the period from November 27, 2000 to March 31, 2001 at SRC Bogra. The results indicated that the germplasm differed significantly as to the different morphological attributes, yield and other desirable traits. The height of plants varied from 42. 50-67. 33 cm whereas, there was no difference as to the number of leaves/plant. Length and width of individual bulb differed from 2.40-3.20 and 2.10-2.71 cm, respectively. The number of cloves/bulb and individual bulb weight were also varied significantly. The entries showed variable degree of pungency. Per hectare yield (t) of garlic genotypes varied from 2.18-6.29, being lowest in GC003 and highest in GC007. Considering pungency as a positive trait of selection and yield potentiality also with other parameters, the lines GC002, GC006, GC007, GC010, GC011, GC016, GC017 and GC021 were found promising.
  M.B.R. Mollah , M.S. Alam , F.B. Islam and M.A. Ali
  A study was conducted to know the effectiveness of Randomly Amplified Polymorphic DNA (RAPD) marker in generating polymorphism in different chicken populations. Four of the twenty random primer screened yielded distinct RAPD profiles. Among 39 fragments amplified from these 4 primers, 25 of them showed polymorphism. The average number of amplified bands per primer ranged from 9 to 11. The study revealed that RAPD markers were effective in detecting polymorphism in different chicken breeds. However, comparatively large numbers of random primers were required to detect satisfactory polymorphism in different chicken populations.
  C.K. Saha , M.S. Alam , A. Khatun , Z. Naher , M. Hussain and M. Rahman
  A study was conducted with a view to predict the correlated response in yield taking plant height as the criterion for single trait phenotypic selection in jute. Results indicated that selection on plant height did not reflect a corresponding response in yield. Application of high selection intensity may be risky. So a low intensity selection on plant height should be applied when selection is done based on plant height only. In such situation, yield estimation of the plants above mean height may increase selection efficiency. But for higher yield direct selection appeared to be efficient over indirect selection.
  U.K. Nath and M.S. Alam
  Fifteen exotic groundnut genotypes collected from ICRISAT along with a local check (Dhaka-1) were used to study their performance, genetic variability, heritability and genetic advance of yield and yield contributing characters. Significant variations were observed for all the characters in all the genotypes used in the experiment. Higher phenotypic coefficients of variations were observed for plant height, primary branches per plant, pods per plant, harvest index and pod yield plant 1. Characters like plant height, pods per plant, 100-pods weight, shelling percentage, harvest index and pod yield per plant showed high heritability. Considerable high genetic advances in percentage of mean were found for plant height, pods per plant, harvest index and pod yield per plant.
  Lipika Ghosh , M.S. Alam , M.R. Ali , A.M. Shohael , F. Alam and R. Islam
  The biochemical parameters such as moisture, ash, protein, fat, carbohydrate, Vitamin-C, phenol, pectin and mineral contents of healthy and leaf spot disease infected mulberry (Morus sp.) leaves were analyzed. Most of these nutrient contents in mulberry leaves were affected greatly with the infection of fungi. Total sugar, reducing sugar, non-reducing sugar, starch, moisture, ash, protein and lipid contents were found to be decreased in infected mulberry leaves due to leaf spot disease caused by Cercospora moricola Cooke and these contents were decreased by 8.58, 1.6, 60.09, 20.22, 24.52, 38.16, 33.84 and 40.26%, respectively. Among the contents, only Vitamin-C, phenol, pectin and mineral contents were found to be increased in infected samples over healthy samples and these contents were increased by 90, 84.21, 35 and 39.97%, respectively. The changes of total sugar, reducing sugar, non-reducing sugar, starch, protein, ash and lipid contents decreased remarkably but those of Vitamin-C, phenol, pectin and mineral contents increased significantly in leaves of disease affected mulberry as compared to those in healthy mulberry.
  M.S. Ali , S.Khatun , M.K. Bashar , M.S. Alam , D. Purba , M. Kawase , K. Okuno and S. Kiyosawa
  In two tests, 108 and 96 F3 lines derived from a cross of rice varieties, Nipponbare (japonica) and Juma (indica) were used for gene analysis of lesion size and lesion number as components of field resistance to blast, respectively. Blast isolate, Ken 54-20 was used in evaluating disease resistance of the hybrid population. Nipponbare showed a small number of large lesions and Juma showed a large number of small lesions in one of the two tests. F3 plants with higher levels of resistance (evaluated as; highly resistant) than their parents were observed in some lines. Resistances were evaluated on individual plant basis and divided into four reaction types, R, N (Nipponbare type, small lesion number), J (Juma type, small lesion size) and S (susceptible). Resistances in three classes, R, R+N and R+N+J, were analyzed by the cumulative frequency distribution curve method. To explain these three types of segregations, three genes (controlling inhibition of lesion size and number) with minor effect were assumed: AACC in Nipponbare and BB in Juma. Additive effect of these three genes, AABBCC, was considered for explaining R type resistance, AACC for N type field resistance and BB for J type field resistance. But in another test (Test 2) with different F3 segregating lines derived from the same F1, resistance was explained by BBDD genes in Juma and EE gene in Nipponbare. This suggests that at least one gene in Nipponbare was not expressed in Test 2, indicating of epistatic change of gene action between the tests. There was no association between seed sterility and blast resistance, although there was an association between color of the basal leaf sheath and seed sterility. This means that genes responsible for seed sterility are not linked with blast resistance genes.
  N. Khan , M.S. Alam and U.K. Nath
  Garlic (Allium sativum) root tips were induced to regenerate shoots through callus culture and somatic embryogenesis to obtain plantlets. The experiment was designed to investigate the regeneration potentiality of two garlic verities and also to develop an efficient protocol for regeneration of garlic via callus culture. Higher percentage of callus was initiated from the combination of 5 mg l ha-1 Kinetin and 1.5 mg l ha-1 2,4-D. Embryogenic callus produced higher number of shoots in MS medium supplemented with 10 BAP. Rooting of individual shoots was induced after transfer to medium without growth regulator. The plantlets were established in the soil after acclimization. Cultivar differences in regeneration from root tips were observed.
  S.J. Uddin , M.M. Ferdous , R. Rouf , M.S. Alam , M.A.M. Sarkar and J.A. Shilpi
  The methanolic and aqueous extracts of E. fluctuans was evaluated in experimental diarrhoea, induced by castor oil in mice. Both methanolic and aqueous extracts, given orally at the dose, of 250 mg kg-1 body weight, showed significant anti-diarrhoeal activity as compared to that of the control. Both the extracts at the above dose levels also significantly reduced the intestinal transit of charcoal meal in mice. The in vitro antimicrobial activity of the extracts showed variable result. The methanolic extract moderately inhibited the growth of Shigella dysenteriae, Shigella boydii and Shigella flexneri, while the aqueous extract inhibited the growth of Staphylococcus aureus, S. dysenteriae and S. boydii. But both the methanolic and aqueous extracts did not show any significant effect on Escherichia coli and Pseudomonas aerugenosa. All the results indicated that the extract of E. fluctuans possesses anti-diarrhoeal activity.
  S.M. Shahidullah , M.A. Hakim , M.S. Alam and A.T.M. Shamsuddoha
  A study was conducted to evaluate the groundwater quality at Phulpur thane of Mymensingh district in Bangladesh. Water samples from 14 deep tubewells were analyzed for pH, EC, TDS, Na+, K+, Ca++, Mg++, Fe, P, B, NO3-N, SO4–, Cl–, CO3– and HCO3–. In addition SAR, SSP and RSC were calculated following standard equations. The range of EC was 180-380 μScm–1 and SAR 0.22-0.80 and these two parameters indicated that three samples were in 'low salinity-low alkali' and 11 were in 'medium salinity-low alkali' hazard class. There was no chloride toxicity in the area. The presence of SO4–, NO3– and P were negligible. As regards boron and SSP, all waters were of 'good' to 'excellent' class. In respect of TDS all were 'fresh water'. On the basis of RSC values all samples were of 'suitable' class. As a whole, groundwater of the area can safely be used for long-term irrigation. But some of those may not be suitable for drinking and industrial uses in consideration of Fe concentration, TDS and pH values. Among the quality determining factors SSP and SAR were highly correlated where correlation coefficient was 0.97.
  M.F. Hossain and M.S. Alam
  Induced mutation holds promise for effective improvement and have high potential for bringing about genetic variability. Regenerable calli of four rice varieties were exposed to 0 to 6 Gy of gamma rays to determine their effect on growth and plant regeneration capability. Both growth and regeneration capacity decreased with increasing levels of gamma rays ; however, plant regeneration capacity was more sensitive to gamma rays than growth. The 50% inhibition dose for callus growth and plant regeneration was approximately 5.0 Gy of gamma radiation in Binnatoa variety. But in remaining varieties 4.0 Gy was recorded for callus growth and 2.0 Gy for regeneration.
  M. Shahidul Alam , M.S. Alam , M. Rafiqul Islam , Most. Ferdousi Begum , Montaz Ali Sarkar and M. Sabina Banu
  Six types of poultry feed ingredients viz. maize, rice bran, sesame oil cake, soybean oil cake, wheat husk and oyster shell were used for determination of the presence of fungal flora. Eight genera of fungi have been isolated and identified. The genus Aspergillus was the highest in frequency followed by Penicillium, Rhizopus, Fusarium, Paecilomyces, Scopulariopsis, Alternaria and Candida. Sesame oil cake was the highest contaminated (43.15%) and oyster shell was the lowest (3.06%). Fungal contamination of poultry feed ingredients increased with the increase in their moisture content and storage period.
  M.K. Alam , Z. Islam , M.A.Rouf , M.S. Alam and H.P. Mondal
  A field experiment was conducted at the Hill Agricultural Research Station, Khagrachari to find out a suitable planting material and mulch material for turmeric production in the hill slope of Chittagong Hill Tracts. Nine treatment combinations comprising 3 levels of planting material (mother rhizome, primary finger and secondary finger) and 3 levels of mulching (rice straw, sungrass and non-mulched) were compared. Mother rhizome showed better yield performance. Sungrass appeared the best mulching material for producing higher turmeric yield. Mother rhizome coupled with sungrass mulching gave significantly higher yields (387.6 g clump-1 and 29.4 t ha-1) of turmeric in hilly region of Bangladesh.
  M.O. Faruq , M.S. Alam , M. Rahman , M.S. Alam and A.F.M. Sharfudddin
  The experiment was conducted at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh during November, 2000 to August 2001 to determine optimum planting time on growth, yield and storage performance of onion. Three dates of planting viz., November 22, December 7 and 22 and, two storage conditions viz., inside sand and open on bamboo platform. The planting time had significant effect on growth, yield components, yield and also storage parameter studied. The November 22 planting produced the highest yield (25 t ha-1) by increasing leaf number per plant(11.73), bulb diameter (5.31cm), fresh weight of bulb(59.60g) and dry matter content of bulb(13.44%). In the three planting times, the rotting percentage was higher (15.51, 8.66 and 8.34 respectively) under inside sand storage. The highest weight loss (29.21%) and sprouting (1.98%) were obtained by November 22 planting with open storage on bamboo platform.
  M.S. Alam , K.M. Masum and Mamun-Or-Rashid
  Diversity of tree species, management practices of woodlot in the homegarden and its contribution to the socio-economic condition of rural household has been studied in the offshore island of Bangladesh. Assessment was done by means of multistage random sampling. Based on the homestead size respondents were categorized into small, medium and large and a total of 45 homesteads 15 from each category were selected randomly for the study. The study reveals that the diversity of tree species was found to increase with the increase of homestead size of the respondent. A total of 76 tree species under 34 families were identified in the study area Floristic elements of the homestead flora consists of both native and exotics species. Most of the farmer (75.5%) preferred to plant fruit tree species for future plantation. Diversity and abundance of fruit tree species was found higher in all homestead. But recently fruit bearing were gradually being replaced by some exotic timber species such as Swietenia mahagoni, Acacia auriculiformis, Tectona grandis and Eucalyptus spp. etc. Bambusa spp., Albizia saman, Areca catechu, Cocos nucifera, Mangifera indica were in the top in species richness. The average annual income from homestead`s plant species was 5733.33 Taka. Lack of good seed/ seedlings, lack of technical knowledge and unavailability of space appeared to be the major constrains for planting trees. The major problems faced by the farmers in tree establishment and management were the damage caused by animals, storms, pest and insects.
  M.M. Hasan , S.P. Chowdhury , Shahidul Alam , B. Hossain and M.S. Alam
  Ten plant extracts, such as rhizome of Zingiber officinale, bulb of Allium sativum, Allium cepa, leaves of Adhatoda vesica, Lawsonia alba, Azadirachta indica, Achyranthes aspera, stem of Cuscuta reflexa, root of Vinca rosea and seeds of Nigella sativa were tested for their efficacy in vitro against seed-borne fungi of wheat. All the plant extracts significantly reduced the incidence of seed-borne fungi; increased seed germination; number of healthy seedlings and vigour index. Alcoholic extracts of neem (Azadirachta indica) and garlic (Allium sativum) completely controlled the intensity of Bipolaris sorokiniana, Fusarium sp., Aspergillus sp., Penicillium sp. and Rhizopus sp. after the treatment on wheat seeds. Next to garlic and neem, V. rosea extract showed good inhibition and 1.40% intensity of B. sorokiniana followed by bulb extract of A. cepa and leaf extract of A. aspera (1.53 and 1.53%). Water extract of test plants also showed good antifungal effects against seed-borne fungi of wheat. Treated seeds of wheat by the extract of A. indica gave 99.33% seed germination, which is 16.86% higher over untreated control. The highest vigour index (1936, 2194; 1826, 2223 and 1871, 2174) was recorded after the application with alcoholic and water extracts of rhizome of ginger, bulb of garlic and leaf of neem on seeds of wheat while the lowest was in untreated control. The highest (86.95%) and the lowest (13.05%) healthy and infected seedlings were recorded when the seeds were treated with neem extract. Next to neem extract, garlic extract treated wheat seeds gave 84.70% healthy seedlings and 15.13% infected seedlings, respectively.
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