Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by M. Ahmed
Total Records ( 15 ) for M. Ahmed
  A. W. Baloch , A. M. Soomro , M. A. Javed , M. Ahmed , H. R. Bughio , M. S. Bughio and N. N. Mastoi
  Three mutant strains Basmati 370-32, Jajai 77-30 and Sonahri Sugdasi-6 along with their respective mother varieties Basmati 370, Jajai 77, Sonahri Sugdasi and check variety Basmati 385 were evaluated under different plant population (spacings, 20 x 20 cm2, 22.5 x 22.5 cm2 and 25 x 25cm2 between plant and rows) for grain yield and yield contributing parameters. An increase in spacing induced vigorous plant growth as well as increased the number of panicles per hill, grain yield per hill, filled grains per panicle and 1000 grain weight. The spacing 22.5 x 22.5 cm2 proved more appropriate because it produced better plant stand, gave more panicle density and higher grain yield than other two spacings. The mutant strains Jajai 77-30 produced significantly higher grain yield at all spacings as compared with all other entries.
  A. M. Soomro , A. W. Baloch , M. Ahmed , M. A. Javed , H. R. Bughio , M. S. Bughio , T. Muhammad and N. N. Mastoi
  Fast neutrons (10 and 25 Gy) and gamma rays (150, 200, 250 and 300 Gy) were used to induce desirable mutations with regard to yield and quality characteristics in IR6 (non-aromatic) and Basmati-370, Jajai-77 and Sonar Sugdasi (aromatic) varieties of indica rice. Six stable mutants of non-aromatic varieties viz., IR6-252, IR6-25-1, IR6-30-1, IR6-1.0-2, IR6-1.5-2 and IR6-2.5-2 and six mutants of aromatic varieties viz., Basmati-2.5, Basmati-15-14, Basmati-20-1, Basmati-30-2, Jajai-77-2 and Sonahri Sugdasi-20-1 were evaluated in zonal trials over 9 different locations in the Province of Sindh and Balochistan. All the non-aromatic mutants except IR6-2.5-2 were significantly (P≤ 0.05) superior in yield to the parent IR6. The mutant IR6-252 had the highest paddy yield. Similarly, all the aromatic mutants except Basmati-2.5 were significantly (P≤ 0.05) superior to their respective parents and check variety. The mutant Basmati-20-1 had the highest paddy yield followed by mutant Basmati –15-14. All the mutants maintained their superiority in grain quality characters over their respective parents.
  S.K. Paul , M.A.R. Sarkar and M. Ahmed
  Leaf production, leaf and culm dry matter yield of transplant aman rice as affected by row arrangement and tiller separation was investigated in this study. The highest number of leaves hill-1 (44.53, 70 DAT) was produced in single row, when tiller separation was done (41.00, 55 DAT) at 25 days after transplanting (DAT) and intact hills (48.74, 55 DAT). The lowest leaf production hill-1 was recorded in triple row (26.10, 100 DAT), when tiller separation was done at 35 DAT (26.99, 40 DAT) and 2 tillers kept hill-1 (19.88, 40 DAT). The maximum leaf dry matter yield (2.78 t ha-1, 70 DAT) was obtained in triple row which was statistically identical to double row (2.59 t ha-1), while tiller separation was done at 35 DAT (2.47 t ha-1, 85 DAT) and 4 tillers kept hill-1 (2.56 t ha-1, 85 DAT) which was statistically identical to intact hills (2.50 t ha-1, 85 DAT). But the lowest one was recorded in single row (0.47 t ha-1, 25 DAT), where tiller separation was done at 35 DAT (0.53 t ha-1, 25 DAT) and 2 tillers kept hill (0.56 t ha-1, 25 DAT). The maximum culm dry matter yield was recorded in triple row (4.14 t ha-1, 85 DAT), when tiller separation was done at 35 DAT (4.01 t ha-1, 85 DAT) and intact hills (4.10 t ha-1, 85 DAT) which was statistically identical to 4 tillers kept hil-1 (3.97 t ha-1, 85 DAT). But the lowest dry matter of culm was recorded in single row (0.42 t ha-1, 25 DAT); when tiller separation was done at 25 DAT (0.50 t ha-1, 25 DAT) and 2 tillers kept hill-1 (0.49 t ha-1, 25 DAT). Closer row spacing significantly reduced the leaf production ability hill-1 but increase leaf and culm production unit-1 area and hence, dry matter yield increased. To enhance leaf production hill-1, transplant aman rice cv. BR 23 (Dishari) can be grown in single row but to increase dry matter yield it can be grown in triple or double row arrangement. Tillers can be separated at 25 or 35 DAT keeping 4 tillers hill-1.
  M.F. Hossain , M.S.U. Bhuiya and M. Ahmed
  The study was conducted in order to investigation the relationship between grain yield with the morphological parameters of five local and three modern aromatic rice varieties. The varieties Kataribhog, Radhunipagal, Chinigura, Badshabhog, Kalizera, BRRI dhan34, BRRI dhan dhan37 and BRRI dhan38 were transplanted. All the parameters varied significantly in different aromatic rice varieties. Among the aromatic rice varieties the highest grain yield was obtained from BRRI dhan34 which identically followed by Kataribhog. The highest plant height was observed in Chinigura which statistically similar to Kataribhog The highest number of fertile tillers hill-1 was observed in BRRI dhan37 and it was identically followed by Radhunipagal, Badshabhog, Chinigura, BRRI dhan38 and the lowest fertile tillers hill-1 was obtained from Kalizera which was statistically similar to Kataribhog. The highest number of grains panicle-1 was found in BRRI dhan34 and that was the lowest in BRRI dhan38. Maximum 1000 grain weight was observed in BRRI dhan38. In respect of yield BRRI dhan34 and Kataribhog are suitable for Dinajpur region in Bangladesh during T. aman season.
  S. K. Paul , M. A. R. Sarkar and M. Ahmed
  The effect of row arrangement, time of tiller separation and number of tillers kept hill-1 was studied on the yield of transplant aman rice (cv. BR23). The highest number of total tillers hill-1, effective tillers hill-1 and harvest index were found in single row. The highest harvest index was found in single row. The highest grain yield was obtained in double row arrangement. Plant height and panicle length were higher when the tillers were separated at 25 DAT but number of total tillers hill-1 was maximum when the tillers were separated at 35 DAT. The highest number of effective tillers hill-1, number of grains panicle-1 and grain yield were obtained when 2 tillers were kept hill-1. The highest number of effective tillers hill-1 was obtained when tillers were separated at 35 DAT and 4 tillers kept hill-1 which was similar to tiller separation at 25 DAT keeping 2 tillers hill-1. Growing transplant aman rice in double row arrangements appears as the promising practice. Cultivar BR23 of transplant aman rice appears to be resistant to tiller separation leaving behind only 2 tillers hill-1. Tillers can be separated at 25 or 35 DAT without hampering the grain yield.
  M. K. Hossain , M. Ahmed , H. Kabir , M. R. R Sarker , M. A. Jalil and G. N. Adhikary
  A pathological study was conducted on the poultry diseases occurring at Rajshahi region of Bangladesh during the period January,2001 to February,2002. A total of 327 cases were studied of which some are sick birds and others are dead. Diagnosis of different disease conditions were made on the basis of history, clinical findings, pathological findings, age(IBD) (12.53%),Infectious laryngo-tracheitis (ILT) (0.61%), Avian leucosis complex (3.36) , Mareks disease (0.61%), Duck plague(2.14%),Pullorum disease(5.81%), of birds, isolation of the organisms ,serology and response to treatment. The diseases thus diagnosed are Newcastle disease (ND) (14.37%), Infectious bursal disease Colibacillosis(5.19%), Fowl cholera(1.83%) , Fowl typhoid (3.66%), Necrotic enteritis (0.91%), Pneumonia (non specific )( 7.03%), Enteritis (non specific) (3.97%), Infectious coryza (1.22%), Aspergillogis (2.44), Chronic respiratory disease(CRD) (8.56%), Coccidiosis (10.70%), Helminthiasis , Deficiency disorders (3.66%) and Miscellaneuos diseases (4028%). Young birds were mostly affected by Colibacillosis, Pullorum disease,ND , IBD etc. Adult birsds were mostly affected by Mycoplasmosis, Fowl typhoid, ND etc. Vaccination failure was common in case of IB. CRD was commonly found as mixed infection with ND.
  M.E. Haque , M. Ahmed , M.E. Haque , M.R.H. Khan and M.S. Hossin
  A field experiment was conducted to investigate the effect of four different number of seedling hill -1 viz., 2, 3, 4 and 5 and five different culm cutting height viz., 5, 10, 15, 20 cm and no cutting (control) on rice green fodder, hay and seed yield of transplant aman rice cv. Binadhan 4. Results revealed that the green fodder yield increased with the decreasing cutting height. The highest (4.55 t ha -1) and the lowest (2.75 t ha -1) green fodder yields were obtained from cutting at 5 and 20 cm, respectively. Identically the highest green fodder yields (3.03 and 2.99 t ha -1) were found by 5 and 4 seedling hill-1 treatments. The highest hay yield was obtained from 20 cm cutting height and 5 seedling hill -1. Plant height was positively related to cutting height, the highest (141.38 cm) and the lowest (117.67 cm) plant height at harvest were due to control and cutting at 5 cm treatments, respectively. Seed yield decreased with the decreasing cutting height. The highest and the lowest seed yields were obtained from control and cutting at 5 cm, respectively. The highest seed yield was found in 3 seedling hill -1.
  M.S.H. Molla , M. Robiul Alam , F. Islam , M.O. Hoque , M. Akhtar Hossain and M. Ahmed
  An experiment was conducted to ascertain the feasibility of green fodder harvest without affecting the seed yield of transplant aman rice. Plant height, number of leaves hill-1, number of tillers hill-1, green fodder yield and seed yield were significantly differed due to different cultivar and leaf clipping height. Latishail produced the highest plant height, number of leaves hill-1 and number of tillers hill-1 at all growth stages where BR10 showed the lowest among cultivars. The green fodder yield was also obtained highest (1.98 t ha-1) from latishail, which was statistically identical with BR10 and BR11. The highest seed yield (4.23 t ha-1) was obtained from BR11, which was followed by BR10 (4.01 t ha-1). The highest value of all parameters except seed yield were obtained from control plot at all growth stage where the lowest were recorded from clopping at 10 cm height. The plants clipped at 20 cm height, produced an average green fodder yield in addition to higher seed yield which was statistically similar to control. So it is possible to get green fodder by leaf clipping without seriously affecting the rice seed yield.
  M. Ahmed , Abdul-Letif , M.A.Z. Habeeb and H.S. Jaafer
  The performance properties of the Minkowski curve fractal antenna have been investigated and compared with the performance properties of the traditional straight-wire dipole. Numerical simulations were done using NEC4 which is moment-method based software. Results of radiation pattern, voltage standing wave ratio, input impedance, gain and half power beamwidth are provided. The results show that the self similarity properties of the fractal shapes are translated into its multiband behavior. It is concluded that the Minkowski curve fractal can be used to achieve miniaturization in antenna systems while maintening the radiation properties of the traditional straight-wire dipole. Thus this fractal antenna is likely to have a very promising future in portable device applications.
  M. Helal Uddin Biswas , A. R. M. Ruhul Amin , M. Shah Alam Bhuiyan , M. A. Rashid , M. Ahmed and M. A. Islam
  A Monocillium species isolated from a soil sample which grown optimally in Czapek`s dox broth (acidic) medium yielded the metabolic compound HB identified as a mixture of novel compounds, Monocillinols A and B. Antibacterial activities of the compound were observed against fifteen Gram positive and Gram negative pathogenic organisms. The compound showed significant antibacterial activities against all pathogenic organisms tested except Gram negative Shigella sonnei. The minimum inhibitory concentration (MIC) values of the compound were determined against Bacillus subtilis, Sarcina lutea, Staphylococcus aureus, Shigella dysenteriae, Escherichia coli and Salmonella typhi and found to be 128, 256, 128, 128, 128 and 128 g/ml, respectively.
  M. A. Bakr , M. Ahmed , M. A. Islam , M. R. Karim and M. H. U. Biswas
  BMalic acid-propane 1, 2-diol and malic acid-propane 1, 2-diol-glycerol copolyesters are synthetic polymers and it was reported that both of them are good enteric coating materials. The research work was conducted to investigate the toxicological study of both compound. The LC50 values on brine shrimp nauplii of malic acid-propane 1, 2-diol and malic acid-propane 1, 2-diol-glycerol copolyesters were found to be 5.00 μg ml-1 and 5.62 μg ml-1, respectively. It is slightly higher toxic than standard ampicillin trihydrate on brine shrimp nauplii.
  M. Ahmed , R. Parvin , M.S. Rahman , M.S.H. Molla and S.M.J. Hossan
  The effect of rice leaf cutting on the production of green fodder, hay and seed yield of BR10 rice was evaluated. Tallest plant, maximum number of non-effective tillers hill-1, longest panicle, maximum seed panicle-1 and highest seed yield were obtained from without leaf cutting when the crop was transplanted using two seedlings hill 1 with plant spacing 25 x 15 cm2. Whereas leaf cutting treatment having two seedlings hill 1 with spacing 25 x 15 cm2 produced the highest number of effective tillers hill-1. Spacing 25 x 10 cm2 also produced statistically identical seed yield ha 1 with no cutting treatment having two seedlings hill 1 with 25 x 15 cm2. The highest forage yield and dry matter yield of forage were observed from leaf cutting treatment of six seedlings hill 1 with spacing 25 x 10 cm2. The highest cumulative hay yield was found in cutting treatment, two seedlings hill 1 with spacing 25 x 20 cm2 which was statistically similar to six seedlings hill 1 with spacing 15 x 10 cm2. Average forage yield was 2.81 t ha-1. It is possible to harvest rice forage from transplant aman rice like BR10 without decreasing grain or seed yield and length of leaf cutting may be up to 10 cm at vegetative growth stage.
  M. A. R. Sarkar , S. K. Paul and M. Ahmed
  The effect of row arrangement, time of tiller separation and number of tillers kept hill -1 was investigated on growth of transplant aman rice (cv. BR23). The experiment comprised of three row arrangements viz., single, double and triple row; two times of tiller separation viz., 25 days after transplanting (DAT) and 35 DAT ; and three levels of number of tillers kept hill -1 viz., 2,4 and intact hills. The tallest plant and the highest number of tillers hill -1 were recorded in single row, intact hills and when tiller separation was done at 25 DAT. On the other hand the highest leaf area index and total dry matter were recorded in triple row and intact hills. Growing of transplant aman rice in triple rows with intact hills appears as the promising practice in respect of highest leaf area index and total dry matter production. In single row tillers can be separated at 25 DAT without hampering plant height and tiller production hill -1.
  U.A. Naher , M.A. Hashem , M.K. Uddin , M. Ahmed and M.A. Saleque
  A study was undertaken to determine the oxidizable organic carbon mineralization rate of cowdung (CD) and poultry manure (PM) alone and with combination of rice straw (RS) and lime under covered condition. The oxidizable organic carbon mineralization rate followed the first order kinetics and was best in logarithmic model of (Co-Ct) vs. t. The carbon mineralization rate was higher in the PM than CD. The application of rice straw reduced mean mineralization rate of both CD and PM and it increased by liming. The cumulative carbon dioxide evolution flux was higher in CD (854 mg kg-1) followed by CD + RS (828 mg kg-1) and CD + lime 1 1 treatments (780 mg kg-1). The carbon dioxide evolution rate was high up to 20 days in the CD and CD + lime 1 treatments and in the PM it was high up to 30 days. The cumulative carbon dioxide evolution rate was higher in CD treatments than PM treatments. The mineralization rate became steady after 45 days in CD and 60 days in PM treatment so within this period it is mature enough for field application. The addition of lime increased half-life of cowdung and poultry manure. The lowest half- life (19 days) obtained from PM + lime treatment.
  I. Hussain , M. Asif , M. Ahmed , M. Khan and I. Shakir
  A 45 days storage experiment was conducted to investigate the effect of Uni-Packaging treatments on the shelf life of citrus fruits. Different treatments were polyethylene bags of 0.0254mm, 0.0508mm thickness and control. The result showed that the uni-packaging had no significant effect on the pH of citrus fruit. Weight loss increased significantly as storage increased. Maximum weight loss observed in control and minimum weight loss in thick packaging (0.0508mm). The T.S.S increased during storage but individual packaging had non-significant effect on the T.S.S. Ascorbic acid decreased from 1.59-0.63% during storage. The organoleptic properties evaluation revealed that individual packaging had significant effect on the external appearance, taste and texture. Thick packaging perform significant effect in prolonging the shelf life of citrus fruit.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility