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Articles by Bashir Ahmad
Total Records ( 15 ) for Bashir Ahmad
  Bashir Ahmad , Shahida Zakir , Shumaila Bashir , Shehnaz Begum , Muhammad Ismail and A. Badshah
  Eucalyptus citriodora of Myrtaceae family was collected from Manzary Baba, Malakand Agency, NWFP Pakistan . After identification and post harvest treatment, a preliminary separation of constituents by TLC and best solvent for extraction was attempted. Further resolutions of the component of the crude extracts by TLC and Rf values suggested that two major compounds were present in the sample. Also an economically feasible procedure for the isolation of rutin, a glycoside, from Eucalyptus Citriodora has been developed.
  Bashir Ahmad , Qasim Jan , Shumaila Bashir , Muhammad Iqbal Choudhary and Muhammad Nisar
  Phytochemical evaluation of Chenopodium murale Linn. whole plant,revealed the presence of two flavonoids along with two steroidal glycosides, which were identified as 3,7-Dihydroxy-3`-(4-hydroxy-3-methylbutyl)-5,6,4`-trimethoxyflavone (1), 5,7-Dihydroxy-3`-(2-hydroxy-3-methyl-3-butenyl)-3,6,4`-trimethoxyflavone (2), βSitosterol 3-O-βD-glucoside (3),Stigmasterol 3-O-βD-glucoside (4). Although these were known compounds, but isolated for the first time from this plant specie. The characterization of all these compounds was achieved by various spectroscopic methods and the results were compared with the literature.
  Khuda Bakhsh , Bashir Ahmad and Sarfraz Hassan
  Stochastic frontier production function was used to determine technical efficiency and its determinants in potato production. Cobb Douglas production function was adopted. Results indicated that age of the respondents, consulting extension staff and cost of plant protection measures were positively related with technical efficiency. However, cost of fertilizer was negatively affecting technical efficiency. The main reason was injudicious use of fertilizer especially nitrogenous fertilizer. The mean technical efficiency level was 76% indicating that there exist a large potential to increase potato production in Pakistani Punjab. Results of the study suggest that by improving technical efficiency, food security problem could be handled to a great extent with available technology and resources.
  Bashir Ahmad , Shahida Zakir , Bahadur Nawab , Asim Jehangir and Dilawar Farhan
  The untreated effluent of Gadoon Amazai Industrial Estate (GAIE) is a serious threat to the receiving surface and ground water. The study was carried out to evaluate the pollution load of five collector drains. A total of 60 samples were collected during three months period of time i.e., December, January and February 2001 from the five drains and were analyzed for different parameters. The results revealed that collector drains had high concentration of BOD, TS, SS, DS, Sulfate and Sulfide while pH, EC, Nitrite and nitrate were found within the permissible limits as recommended by the US EPA. To combat with the pollution problem at GAIE the treatment of the industrial effluents prior to its discharge was strongly felt through constructed wetlands.
  Bashir Ahmad , Shahid Bashir Khokhar and Hammad Badar
  The purpose of precision land levelling is to produce a best-fit uniform and plane soil surface that makes optimum use of soil and water resources for agricultural purpose. Precision land levelling amongst other methods is made with the help of laser technology. This research paper attempts to find out the impact of laser land levelling on the changes in output level and to determine the extent of water saving. The study is based on primary data collected from the farmers who have got their fields leveled with their traditional methods and with laser technology. Partial budget technique has been employed to determine benefit cost ratio.
  Shahida Zakir , Bashir Ahmad , Tanveer Hussain , Shumaila Bashir , M. Ismail and A. Badshah
  The study was aimed to analyze the concentration of lead in blood samples of 60 randomly selected children aged between 7-14 years from different auto-workshops of Peshawar. The results revealed that a large proportion of the children had high level of lead ranging from 8.2 to 68.5 μg dL‾1 with mean 38.203. This attempt disclosed the health risks including loss in memory, anemia and body pain, rising of threshold of hearing and general weakness related to child labour.
  Bashir Ahmad , Shumaila Bashir , Muhammad Nisar and M.B.Huglin
  Anionic hydrogels, using Azo-iso butyronitrile as cross linker, with varying ionic moieties were prepared from N vinyl-2-Pyrrolidone/Methylene Succinic acid/water by heating them at different temperatures for different interval of times. Swelling/drug loading sensitivity with pH and ionic strength of the medium for these hydrogels were investigated. The results anticipate that hydrogels in the ratio of VP/IA 90:10 can be used for local therapeutic Transdermal drug delivery application of cationic, antifungal terbinafine hydrochloride (TER-HCl) in the concentration range of <100 mg ml G 1. In vitro studies in different buffer solutions indicated that pH and IA contents are two basic parameters which affect the release behaviour of the hydrogels.
  Saeed Anwar , Bashir Ahmad , Muhammad Subhan , Waseem Gul and Nazar-ul-Islam
  Crude methanolic (90%) extract of Aconitum chasmanthum as well as various fractions of the same obtained by using different solvent systems were screened for biological and pharmacological activities such as antifungal, antibacterial, insecticidal and Brine shrimp cytotoxic activities. It was observed that the antifungal activity varies from negligible to strong depending upon the solvent system used for the extraction. All the fractions exhibited remarkable antifungal activity against Trichophyton mentagrophyte. However the activity against other organisms varies from no activity to strong inhibition. Antibacterial, insecticidal activities and Brine shrimp cytotoxicity results are also presented.
  Waqar Ahmad , Bashir Ahmad , Manzoor Ahmad , Zafar Iqbal , Muhammad Nisar and Mansoor Ahmad
  The 80% methanolic extract of Myricaria elegans Royle was investigated for in vitro acetylcholinesterase (ACHE), butyrylcholinesterase (BCHE) and lipoxygenase enzyme inhibition activities. The crude extract was found to have significant acetylcholinesterase inhibitory activity (74.8%) and remarkable butryrylcholinesterase inhibitory activity (96.0%). However, no activity was observed against the enzyme lipoxygenase (0.0%).
  Fazle Subhan , Sadur Rahman , Nazir Ahmad , Imtiaz Ahmad , Mohammad Siddiq , Mohammad Anwar , Iftikhar. H. Khalil , Bashir Ahmad , Irshad Ali and Nasir Uddin
  The wheat cultivar, Haider-2000, was first tested at CCRI, Pirsabak in 1996-97 in a nursery of 282 lines. The lines which showed resistance to stripe and leaf rust and gave higher yields were advanced to preliminary yield trials for two years at CCRI. As the ability of the lines regarding grain yield and disease reaction were confirmed, the lines were tested at different locations in the province in the year 1999-2000. As of its comparative advantage over checks the line was evaluated in National Uniform wheat Yield trials during 2000-01 and 2001-02 . Haider-2000 has earned 5th position in NUWYT trials (2000-2001, RF) on national as well as provincial level. In 2001-2002 Haider-2000 has achieved 3rd position in national trials and 2nd position in provincial trials NUWYT(RF). Its chapati quality is excellent. The variety was approved by the Provincial Seed Council in 2000 and by VEC (Variety Evaluation Committee) Islamabad in 2002 for rainfed areas of NWFP, for normal sowing.
  Amir Badshah , Mohammad Farid Khan , Bashir Ahmad , Shumaila Bashir and Gul Majid Khan
  The objective of this investigation was to determine the chemical status of Glutathione (GSH) in the presence of a drug and its copper complex employing simple spectrophotometric analysis. A salicylic acid derivative, 3, 5-di-isopropyl salicylic acid (3,5-DIPS) and its copper complex, tetrakis-μ-3,5-di-isopropylsalicylato-diaquodicopper (II) [Cu (II)2 (3,5-DIPS)4.2H2O] was used as a model drug and its complex, respectively. A prominent and regular decrease in the level of GSH was caused by Cu (II)2 (3,5-DIPS)4 2H2O as compared to the simple ligand 3, 5-DIPS. The decrease in the levels of GSH was found to be dependant upon the concentration and time of the Cu (II)2 (3,5-DIPS)4 2H2O. Some changes in the status of GSH might be the basis of this chemical change observed in the form of depletion.
  Kiramat Khan , Muhammad Iqbal , Abdul Azim , Bashir Ahmad , Fazli Karim and Hassan Sher
  Effect of gamma radiation doses; 10, 20 and 30 Krads on yield and yield components of barley was studied in a replicated experiment during the year 2001-2002 at Cereal Crops Research Institute (CCRI) Pirsabak Nowshera NWFP. Except for 1000-grain weight, significant decrease in grain yield and yield components was observed with radiation doses. However, 1000-grain weight showed an increase as the radiation dose was increased. The findings of the study suggested that low doses up to 30 Krads of gamma radiation have direct inhibitory effect on some yield related traits in vegetative growth stage of barley. However, inhibitory effects on yield components related to reproductive stages in barley could not be fully understood which suggests further investigation.
  Kiramat Khan , Muhammad Iqbal , Zubair Shah , Bashir Ahmad , Abdul Azim and Hassan Sher
  Establishment of optimum plant population is an important factor for increasing grain and stover yield in corn (Zea mays L.). The effect of varying times of thinning on the stover and grain yield of maize was investigated in a replicated field experiment, using an open pollinated maize variety Azam, at farmer=s field at Swat, during summer, 2001. Significant differences were observed among the four thinning treatments for grain and stover yield. The grain and stover yield were found to have decreased as thinning was delayed. Yield components such as number of ears, ear length, number of grains per ear row, ear diameter and 100 kernel weight were significantly affected by late thinning. In vegetative phase, LAI (leaf area index) was the only character, which exhibited significant differences among thinning treatments. The results suggested that thinning of maize crop as early as seedling emergence is important for increasing yield.
  Muhammad Ismail , Zafar Iqbal , Bashir Ahmad , Shahida Zakir and Uzma Niaz
  The ethanol (70%) crude extracts of Rheum emodi and Paeonia emodi were screened for various biological and pharmacological activities including antifungal, antibacterial, insecticidal, phytotoxic and brine-shrimp cytotoxic activities. It was explored that the extracts of both these plant posses moderate antifungal activities. The Rheum emodi exhibited remarkable phytotoxic activity against Lemna aeguinoctailis Welve while the said activity of the Paeonia emodi was also reasonable. However, these extracts did not show any significant antibacterial, insecticidal activities and Brine shrimp cytotoxicity during this study.
  Fazle Subhan , Sadur Rahman , Nazir Ahmad , Imtiaz Ahmad , Mohammad Siddiq , Mohammad Anwar , Iftikhar. H. Khalil , Bashir Ahmad , Irshad Ali and Nasir Uddin
  Saleem-2000 (PR-70) was first received as entry no.6 in Regional Bread Wheat Segregating Population (RBWSP) with the pedigree, CHAM-6//KITE/PGO and planted at CCRI (space planting was done in 9 m2 plots). Single plant selection was made and the generation was advanced as entry no. 5045 at Hill Agriculture Research Station (HARS), Kaghan in 1995. In the year 1995-96 the entry was planted at CCRI as # 6025. It was selected as fix line on the basis of its plant type and disease reaction. From 1996-97 to 1998-99 it was tested among other lines at CCRI in preliminary yield trials, (A and B ) and multi-location trials in NWFP. Randomized Complete Block Design (RCBD) was used with 3 replications. Each plot has six rows 25 cm apart and 5 m long. In 1999-2000 and 2000-2001the line was evaluated in National Uniform Wheat Yield Trials (NUWYT) Islamabad for regional and national level testing . The variety has an edge in yield over the check varieties. It is high yielding and suitable for normal and late planting (which is a major reason for low yield ) in irrigated areas of NWFP. Saleem-2000 has shown Ist position in six sites averages of NWFP both in Normal / Late Seeding Date Trials of NUWYT. Its Chapati quality is better than the existing varieties. The variety was approved in September 2000 by the Provincial Seed Council for the irrigated areas of NWFP and in 2001 by Variety Evaluation Committee (VEC) Islamabad for normal and late sowing irrigated areas of NWFP.
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