Browsing by Author "Behidj-Benyounes, N."

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    Effect of cold and scarification on seeds germination of pistacia atlantica L. for rapid multiplication
    (Pakistan Botanical Society, 2014) Chebouti-Meziou, N.; Merabet, A.; Chebouti, Y.; Bissaad, Fatima Zohra; Behidj-Benyounes, N.; Doumandji, S.
    This study was carried out to determine the effects of mechanical scarification and cold treatment of seeds at + 4°C before sowing seed of Pistacia atlantica. In these cases, the durations at cold temperature, which have been taken into account, are successively 60, 50, 40, and 30 days. After these periods, the rate of germination and the speed of germination are calculated every 4 days. The rates of germinations concerning the not scarified seeds having undergone a cold treatment lasting 50 days are the most important that is a value of 39% from the 09-05-2010 until the 29-05-2010. The speed germination is maximum that is 89 germinated seeds /4 days. In addition this same rate reaches a maximum of 70%. Concerning the pistachio tree seeds of the atlas treated mechanically with duration of cold treatment at + 4°C during 30 days. For the same category of seed the speed of germination is maximum that is 214 seeds/4 days. Thus the scarification and the 30 days stay are the fastest means which allow to obtain the seedlings of pistachio tree in a rather short time
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    Physicochemical Profile of Essential Oil of Daucus carota
    (International Science Index, 2015) Behidj-Benyounes, N.; Benyounes, Khaled; Dahmene, T.; Chebouti, N.; Kebbouche-Gana, Salima
    Essential oils have a significant antimicrobial activity. These oils can successfully replace the antibiotics. So, the microorganisms show their inefficiencies resistant for the antibiotics. For this reason, we study the physicochemical analysis and antimicrobial activity of the essential oil of Daucus carota. The extraction is done by steam distillation of water which brought us a very significant return of 4.65%. The analysis of the essential oil is performed by GC / MS and has allowed us to identify 32 compounds in the oil of D. carota flowering tops of Bouira. Three of which are in the majority are the α-Pinene (22.3%), the carotol (21.7%) and the limonene (15.8%)
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