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Articles by Sultana Rasheed
Total Records ( 2 ) for Sultana Rasheed
  Sultana Rasheed and Altaf Ahmad Dasti
  Twenty-four different plant species belonging to 19 families were analyzed in the current investigation. Plants were ranked according to the felting power, suitability of fibers and strength of the fibers. Among monocots, Caryota urens (garden palm) and Eucalyptus camadulensis, in dicotyledonous plant species had the strongest fibers. Caryota urens (garden palm) in monocots while Terminalia arjuna in dicots had high felting power. Cluster analysis had separated out the Agave americana in monocot which was significantly apart from Saccharum spontaneum, on the basis of derived characters like Slenderness ratio, Runkle ratio and Coefficient of suppleness. Phoenix dactylifera was dominant due to its great fiber length and lowest Runkle ratio. In this investigation, it was concluded that different plant species can be used for different purposes and evolution does not necessarily involve all the qualities of fibers at the same time.
  Sultana Rasheed , Tahira Fatima , Khurram Bashir , Tayyab Husnain and Shiekh Riazuddin
  Seeds of three indica rice varieties B-370, B-2000 and Super basmati were sterilized and incubated on callus inducing medium (MS-Medium with 2 mgl-1 2,4-D) for 2, 4, 6 and 8 weeks and calli were obtained after somatic embryogenesis. After the incubation periods, calli were transferred to the regeneration medium. Regeneration efficiencies decreased from 98.5, 98 and 95% after two weeks incubation to 30, 34 and 24% after eight weeks incubation for B-370, Super basmati and B-2000 respectively. Some interesting patterns for adventitious root formation were also observed. Significant variation was observed within and among different cultivars and incubation periods for average number of tillers, average plant height, number of panicles per plant, panicle length and average yield per plant. Seven interesting somaclones were marked and scored for agronomic and physiochemical analysis. Physiochemical studies did not reveal any significant variation. Present studies clearly indicated that somaclonal variation can successfully be used for creating genetic variation for varietal improvement.
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