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Document Type |
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Thesis |
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Document Title |
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EFFECT OF SILICON IN ALLEVIATING DROUGHT STRESS IN (NIGELLA SATIVA L.) AND ITS RELEVANCE ON OILS PRODUCTION تأثير السيليكون على تخفيف الإجهاد الناتج من الجفاف في نبات حبة البركة Nigella sativa L.) و علاقته بإنتاج الزيوت |
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Subject |
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Faculty of Science |
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Document Language |
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Arabic |
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Abstract |
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Drought is the most significant abiotic factor that limits growth, harms growth and crop production. Silicon is the second element mineral and it has shown to improve soil properties under stress conditions. This study shows the effect of silicon application under normal conditions, and different levels of drought stress (75%, 50%, and 25% FC) on soil physical and chemical properties in addition to minerals availability. The results of the study indicated that, silicon treatments decreased soil pH value compare to silicon un-treatment under all studied water levels. On another hand, CE and OM significantly enhanced in response to Si treatment under most of the studied water levels. Generally, the concentration of soil mineral elements (P, K, Ca, Mg, and Fe) increased due to Si treatment. However, this induction in minerals concentration was more pronounced at higher water levels (100%, 75% FC) in case of K, Ca and Fe. While, the enhancement in P and Mg concentration after Si treatment was much remarkable under higher stress conditions (50%, 25% FC). |
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Supervisor |
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Dr. Amal Ahmed Mohammed Al-Ghamdi |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1442 AH
2020 AD |
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Added Date |
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Friday, May 21, 2021 |
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Researchers
| أروى محمد أشرم | Ashram, Arwa Mohammed | Researcher | Master | |
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