Browsing by Author "Sofia Hamli"

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    EFFECT OF EARTHWORM CASTS FROM A NATURAL MEADOW ON SOME SOIL PHYSICO-CHEMICAL CHARACTERISTICS AND LETTUCE GROWTH
    (Journal of Fundamental and Applied Sciences, 2020-09-01) Dalila Addad; Kenza Kadi; Sofia Hamli; Dounia Dib
    Fertile Grounds are the source for agricultural production and effective nutrients management. We aim at surveying the contribution effect of earthworm casts on physical and chemical soil characteristics (pH, organic matter, electrical conductivity, exchangeable cations) and their impact on morphophysiological parameters of lettuce. Basically, for this operation we have choose three levels of intake (100, 250 and 500g of earthworm casts/pot). The obtained results have shown that the earthworm casts are rich in nutrients such as nitrogen, calcium, potassium and organic matter. Correspondingly, the contribution of earthworm casts has increased the soil content of OM, NTK, K+ and CaCO3. Also, it has a positive effect on chlorophyll, aerial, root biomass and on lettuce growth in general. The results also have indicated that the 500g dose of earthworm casts/pot have been increased the various parameters.
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    Phytochemical Screening and Radical Scavenging Activity of Whole Seed of Durum Wheat (Triticum durum Desf.) and Barley (Hordeum vulgare L.) Varieties
    (Jordan Journal of Biological Sciences, 2017-09-04) Sofia Hamli; Kenza Kadi; Dalila Addad
    Three durum wheat (Triticum turgidum L. var. durum) cultivars, namely Bousselam, Vitron, and Gaviota durum, and one barley genotype (Hordum vulgare L.), Fouara, grown under semi-arid conditions were compared for their total phenolic and flavonoids content and antioxidant activities. Antioxidant activity was tested using DPPH radical scavenging assay method. The phytochemical screening revealed the presence of tannins, flavonoids, coumarins, saponins and phenolic compounds in each variety seeds. The results of the present study indicate significant differences among the evaluated varieties in terms of total phenolic and flavonoid contents and for radical scavenging capacity. Among the tested varieties Gaviota durum showed high total phenolic (95.32± 0.27 μg /mg) and flavonoid content (78.80 ± 0.27 μg/mg) and an intermediate radical scavenging capacity. While barley variety Fouara expressed high radical scavenging capacity (54.8% ±0.34) and intermediate total phenol and flavonoids contents. The tested durum wheat and barley varieties possessed varying but meaningful antioxidant activities which were not significantly correlated to their phenol and flavonoid contents. It is necessary to ensure that increased bioactive components in grains are combined with good agronomic performance, high grain yield and high quality for processing. The results of the present study should have significant implications for plant breeders as well as for grain and food processors.