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Articles by S. Nadeem
Total Records ( 2 ) for S. Nadeem
  Babar Hassan , M. Asghar , S. Nadeem , H. Zubair , H.M. Muzammil and M. Shahid
  Twenty eight strains from buffalo and cow milk were tested for amino acids production in M-1, M-II and L-6 media, fourteen being from each source. Generally, bacterial strains did not produce significant amount of all amino acids, but bacteria from both sources produced aspartic acid and alanine in molasses media (M-I and M-II). Maximum production of aspartic acid (1.9 g L-1) was given by MB-7 and MB-12 in M-I medium after 72 h of fermentation. Some strains of both the sources also produced glutamic acid. Valine (maximum 1.4 g L-1 by MC-10) was produced in M-I medium by some bacterial strains isolated from cow`s milk only. In L-6 medium, lysine (maximum 1.8 g L-1 by MB-6 and MC-13) was produced by all the isolates of both sources. The other amino acid which was produced in L-6 medium by majority of strains was isoleucine (maximum 2.1 g L-1 by MB-6). MB-5 isolated from buffalo milk was found as the best strain in L-6 medium and its produced glutamic acid, lysine and alanine as 4.5, 1.3 and 5.1 g L-1, respectively. It was observed that bacterial strains isolated from buffalo milk were more productive than the strains obtained from cow milk. The strains MB-1, MB-5, MB-13 and MB-14 obtained from buffalo milk and MC-1, MC-7 and MC-13 from cow milk were selected as good amino acids producers strains. Thus aspartic acid, alanine, glutamic acid, lysine and isoleucine were the major amino acids produced from the bacterial strains of both the milk sources.
  Z. Ahmad , F. Azam , T. Mahmood , M. Arshad and S. Nadeem
  A pot experiment was conducted in the greenhouse to evaluate the effect of calcium carbide (as a source of ethylene) on some agronomic parameters of wheat (Triticum aestivum L., var. Inqalab-91) that was grown without or with two levels of N, P and K fertilizers (120-90-60 kg ha-1 and 60-45-30 kg ha-1). Half dose of N and full dose of P and K was applied at sowing while remaining half after one week of germination. Calcium carbide as a source of ethylene was applied at 60 kg ha-1 after 2 and 8 weeks of germination. A factorial completely randomized design was followed with nine treatments each with three replicates. Data regarding plant height, number of tillers, length of spike, number of spikelets spike-1 and grain yield was recorded. Plant height, number of tillers and spike length were significantly affected when CaC2 was applied after one week of germination while number of spikelets and grain yield was maximum when CaC2 was applied after 8 weeks of germination.
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