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Articles by M. Fayyaz Chaudhary
Total Records ( 2 ) for M. Fayyaz Chaudhary
  Sara Kayani , Muhammad Zia , Sadia Sarwar , Riaz -ur-Rehman and M. Fayyaz Chaudhary
  With the objective to promote in vitro callus induction, leaf segments of Achyranthes aspera were inoculated on basal MS medium supplemented with 3.0% sucrose and 0.8% agar with different concentrations of 2,4-D alone and in combination with NAA, BAP, IAA, IBA and Zeatin. The explants were maintained in growth room at 25 ±1 °C and 16 h light cycle. The best callus induction was obtained with 2,4-D (1.0 and 2.0 mg L-1) in combination with NAA (0.5 mg L-1). Callus induction and good texture from leaf explant was also observed at 2,4-D with BAP. On these combinations morphologically, light green, soft, compact and non-embryogenic callus (Type III callus) was observed. While morphology of callus and callogenic response was poor at 2,4-D alone or in combination with other hormones at different concentrations.
  M. Fayyaz Chaudhary and Azhar Ali Abbasi
  Effect of different concentrations of three pre-emergence herbicides namely, pendimethalin (N-(1-ethylopropyl) 2,6-dinitro-3-4-xylidine), trifluralin (2,6-dinitro-N-N-dipropyl-4-trifluoromethylaniline) and oxadiazon (3-(2-4 dichloro-isopropoxy Phenyl) -5-t-butyl -3, 4 oxadizaolin 2-one) on nodulation, nitrogen fixation, morphological characters and some other parameters have been investigated in groundnut (Arachis hypogaea), L. cv Banki. Pendimethalin at 0.74, 1.49, 2:23, trifluralin at 0.37, 0.75, 1.20 and oxadizon at 0.30, 0.60, and 0.90 kg ha–1 was incorporated in soil before sowing. Data were recorded 40, 70 and 90 days after germination. Recommended doses of these herbicides in general had no significant effect on different parameters under investigation. Higher doses of these herbicides adversely affected the nodulation and the fresh and dry weights of nodules. However higher concentration of oxadiazon resulted in increased N accumulation in shoots of groundnut plants. It was concluded that the herbicides under investigation did not affect the groundnut plants adversely if used at recommended levels.
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