• Cytological Studies On The Effect Of The Herbicide "Dual" On Allium Cepa 

      El Bayoumi, A. S. [عبد العزيز البيومي]; Soliman, M.; Habib, A. A. ( Qatar University , 1988 , Article)
      Dual is widely used in Egypt as an active herbicide against annual grass weeds in soybean, sunflower, sugar beet and maize. Cytological studies have been carried out to show the effect of the herbicide on cell division in ...
    • Mitotic Disturbances Induced By The Drug "Novalgin" In Allium Cepa Root Tips 

      El Bayoumi, A. S. [عبد العزيز البيومي]; Halieem, A. S.; Habib, A. A. ( Qatar University , 1984 , Article)
      Growing root tips of Allium cepa are treated with seven concentrations of Novalgin ranging from 2.81 x 10 4 M to 1.5 x 10 4 M for 4, 8, 24,48 and 72 hours. The frequency of mitotic phases in the treated roots varies ...