الباحثون

John R. Williams

المنشورات 2

مقال بحثي وصول مفتوح

Volatile Compounds of the Leaves and Flowers of Lavandula dhofarensis A.G. Miller

John R. Williams, Majekodunmi O. Fatope, Salma M.Z. Al‐Kindy وآخرون · مجلة جامعة السلطان قابوس للعلوم · 2013 · 10.24200/squjs.vol18iss0pp33-40

The leaves and flowers of Lavandula dhofarensis were collected from the Dhofar region of Oman and hydro-distilled to give low boiling volatiles, which did not condense at 10 oC. The dichloromethane extract of the hydrosol was analyzed by GC/FID and GC/MS. Sixty four compounds were identified in the volatiles of the lea …

مقال بحثي وصول مفتوح

Influence of Alternate Bearing on Leaf and Fruit Mineral Composition at Different Developmental Stages of Date Palm Fruits

Mahdi Osman ElMardi, Avin E. Pillay, John R. Williams وآخرون · مجلة العلوم الزراعية والبحرية · 2005 · 10.24200/jams.vol10iss1pp5-12

Samples of leaflets and fruits at different stages were collected from 6 “on-palms” and 6 “off-palms” (15-16 years) of the Fard Cultivar. Samples were dried, ashed and digested. Macro and micronutrient concentrations of K, Ca, Mg,Na, Fe, Zn, Cu and Mg were determined by ICP-AES and N was measured by Kjeldhal method. Si …

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