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Item تأثير معالجة البذور ومياه الري بتقنية البلازما على خصائص انبات ونمو نبات القمح - دراسة حالة صنفي(سوسة – تونس, 2024-06-28) مسعودي محمدتستهدف تقنية البلازما تعقيم البذور وتحسين ظروف تخزينها. كذلك يُعترف بهذه الطريقة كأحد الأساليب المستخدمة في معالجة مياه الري المالحة، بالإضافة إلى تقنيات مثل التمغنط. ونتيجة لذلك، فإن تقنية البلازما قادرة على تحسين عمليات الإنبات وتطوير الجذور ونمو النبات بشكل عام. تقوم هذه الدراسة بتقييم تأثير تقنية البلازما على خصائص الإنبات والنمو لصنفين من نبات القمح: Ble tendre HD 1220 وBle dun Amar 06. تم تصميم التجربة لتقييم تأثير معالجة البذور ومياه الري بتقنية البلازما، حيث تم اختيار 6 معاملات لكل صنف، ممثلة في ماء عادي بدور عادية 0T، وماء معالج بدور عادية 1T، وماء عادي بدور رطبة 2T، وماء معالج بدور رطبة 3T، وماء عادي بدور جافة 4T، وماء معالج بدور جافة 5T، بثلاث تكرارات لكل معاملة. تم تقييم الخصائص الفيزيولوجية والمورفولوجية للنباتات، بالإضافة إلى تحليل تشريح الأوراق والجذور والساق. أظهرت النتائج تأثيرًا واضحًا للبلازما على خصائص النمو الخضري والتشريحية والفيزيولوجية خلال مراحل النمو والانبات للصنفين. ولوحظت زيادة في معدلات النمو الخضري مثل سمك الساق، ارتفاع النبات، عدد الأوراق، وعدد الأفرع، بالإضافة إلى تحسين قياسات كيميائية مثل تقدير كمية الكلوروفيل الكلي وكمية السكريات الذائبة. Abstract: Plasma technology targets the sterilization of seeds and the enhancement of their storage conditions. This method is recognized as one of the approaches employed in treating saline irrigation water, in addition to techniques like magnetization. Consequently, plasma technology has the potential to improve germination, root development, and overall plant growth processes. This research assesses the effects of plasma technology on the germination and growth attributes of two wheat varieties, Ble tendre HD 1220 and Ble dun Amar 06. The experiment was designed to assess the effect of plasma treatment on seeds and irrigation water, with 6 treatments selected for each variety, represented by normal water in a normal cycle (0T), treated water in a normal cycle (1T), normal water in a wet cycle (2T), treated water in a wet cycle (3T), normal water in a dry cycle (4T), and treated water in a dry cycle (5T), with three repetitions for each treatment. Physiological and morphological characteristics of the plants were evaluated, in addition to analyzing leaf, root, and stem anatomy. The results clearly showed the impact of plasma technology on vegetative growth, anatomical, and physiological characteristics during the growth and germination stages of both varieties. An increase in vegetative growth rates such as stem thickness, plant height, leaf count, and branch count was observed, along with improved chemical measurements such as total chlorophyll estimation and soluble sugar contentItem Impact of plasma -treatment Water on the growth and germination Of Vicia Faba L(Sousse, Tunisia, 2024-06-28) Mekhadmi Nour El houda; Amara Ghemam Djilani; Mlik Randa; Messaoudi Mohammedأجريت هذه التجربة بكلية العلوم الطبيعية والحياتية جامعة الوادي سنة 2023 بهدف تحديد تأثير مياه الري المعالجة بالبلازما على نمو وإنبات نباتات أصناف. صممت التجربة باختيار 18 أصصاً لكل صنف، مقسمة إلى ست معاملات (بذور غير معاملة بالماء العادي، بذور معاملة بالماء العادي الجاف، بذور معاملة بالماء العادي الرطب، بذور غير معاملة بالماء المعالج، بذور معاملة بالماء الجاف العادي، ومعاملة البذور بالماء المعالج الرطب) بواقع ثلاث مكررات لكل معاملة. أظهرت النتائج المتحصل عليها أن المياه المعالجة بالبلازما لها تأثير واضح على الصفات المورفولوجية والفسيولوجية خلال مرحلتي الإنبات والنمو لصنفي فيتو هيستال وهابا فافا. وأدى إلى زيادة في القياسات الخضرية المختلفة والمعايير الكيميائية. وهذا يدل على أن المياه المعالجة بالبلازما لها فعالية نسبية في التأثير إيجابياً على نمو وإنبات نباتات Vicia faba L في صنفي Fito Histal وHaba Fava. Abstract: This experiment was conducted at the Faculty of Natural and Life Sciences, University of El Oued, in 2023, with the aim of determining the effect of plasma treated irrigation water on the growth and germination of Vicia faba L plants of the Fito Histal and Haba Fava varieties. The experiment was designed by selecting 18 pots for each variety, divided into six treatments (untreated seeds with regular water, treated seeds with dry regular water, treated seeds with wet regular water, untreated seeds with treated water, treated seeds with dry treated water, and treated seeds with wet treated water), with three replicates for each treatment. The results obtained showed that plasma-treated water had a clear effect on the morphological and physiological characteristics during the germination and growth stages of the Fito Histal and Haba Fava varieties. It led to an increase in various vegetative measurements and chemical criteria. This demonstrates that plasma-treated water has a relative effectiveness in positively affecting the growth and germination of Vicia faba L plants in both the Fito Histal and Haba Fava varieties.Item دراسة أثر مغنطة مياه الري على مميزات محصول البطاطس(سوسة - تونس, 2024-06-28) غمام عمارة الجيلانيأجريت تجربة حقلية بمستثمرة فلاحية بمنطقة حاسي خليفة ولاية الوادي اثناء الموسم الزراعي الربيعي على محصول البطاطس بهدف معرفة مدى استجابة خصائص انتاج محصول البطاطس للري بالمياه الممغنطة. نفذت التجربة ضمن تصميم القطاطات العشوائية الكاملة بعاملين للري (ممغنط وغير ممغنط) بواسطة جهاز Delta Water المتحصل عليه من مجمع CPH بقوة مغناطيسية 14500 قاوس، وبثلاث تكرارات مختارة من الحقل ذات ري محوري وقورنت المتوسطات حسب اختبار LSD على مستوى احتمالية 0.05 . بينت النتائج وجود فروق معنوية في متوسط وزن الدرنة والإنتاج في النبات وفي المساحة إضافة الى نسبة الدرنات القياسية وكذلك نسب الدرنات الكبيرة والمتوسطة والصغيرة. وأوضحت النتائج زيادة في عدد الدرنات بالنبات تفوق 20 % ومتوسط وزن الدرنة بنسبة 25% بينما وصلت الزيادة في الإنتاج بنسبة 35%، كما بينت النتائج ان نسبة الدرنات التي تفوق 450غ كانت 10% في معاملة الري الممغنط في حين غياب هذا الحجم في المعاملة الشاهد ، وان نسبة الدرانات الاكبر من 300غ تزيد في معاملة الري الممغنط بنسبة 15%. Abstract: province, during the spring growing season, focusing on potato cultivation. The study aimed to assess the impact of magnetized water irrigation on various aspects of potato crop production. The experiment employed a completely randomized block design, with two irrigation treatments—magnetized and non-magnetized—utilizing the Delta Water device acquired from the CPH complex, delivering water with a magnetic strength of 14500 Gauss. The experiment included three replicates, employing drip irrigation in the selected field plots. Statistical analysis was performed using the LSD test at a significance level of 0.05. The findings revealed significant disparities in average tuber weight, plant yield, and tuber count per unit area, along with variations in the proportions of standard, large, medium, and small tubers. Notably, the results demonstrated a notable increase in tuber count per plant, exceeding 20%, and a substantial 25% rise in average tuber weight, leading to a remarkable 35% boost in overall yield. Furthermore, the magnetized irrigation treatment exhibited a 10% prevalence of tubers exceeding 450g, contrasting with their absence in the control group. Moreover, there was a 15% rise in the occurrence of tubers larger than 300g in plots subjected to magnetized irrigation.Item Analysis of the variance water distribution of pivot sprinkler irrigation on the productivity of the potato plant in El Oued region of Algeria(Edirne. Turkiye, 2023-09-18) Messaoudi Mohammed; Hacene Laouedj; Ghemam Amara DjilaniThis study aimed to determine the extent different of distribution of the axial sprinkler water as a method of irrigation, and the effect of this on the quantity and quality of potato plant production in different areas along the axis sprinkler in the sandy soil of Eloued region in Algeria. For this, we relied on a sample of data consisting of 150 observations distributed over 10 areas according to the length of the axis. statistically we used oneway-analysis of variance after ensuring its statistical validity. Accordingly, we concluded that despite the significant statistical significance of the difference in the distribution of irrigation water( and the time taken and flow strength) along the axis, the difference in the amount of water supplied in the tenth area (tail region) reached a maximum of 57,58 % relative to the reference area ( the fourth region), which recorded at 42,42 % of what the reference area obtained, and at least 21,60 % was obtained in the eighth area relative to the reference region, which obtained 78,40 % of what the reference area obtained. However, according to the tests of our study, this had no significant effect on the difference, quantity and quality of production along the radius at the 5 % level. In light of these results, we concluded that the productivity of the irrigation water component fundamentally differs between the areas along the axis, which means that this irrigation method is not economical in sandy soils.Item Morphological and anatomical comparison of leaves of date palm cultivars (Phoenix dactylifera L) grown in the southeastern region (Algeria)(Edirne. Turkiye, 2023-09-18) Hacene LaouedjThis study was carried out in the laboratory of the Faculty of Natural and Life Sciences at the University of ElOued. Where this work aims to study the anatomical comparison for leaves from the date palm of five varieties (Garess, Hamray, White Deggla, Nour Deggla, Tekermist) and cultivated in the area EL-oued (Hassi Khalifa), Through a morphological description (The length and width of the frond, payoff) and anatomical study (the diameter of the clipsome of the leaf, the diameter of the large, medium and small vascular bundles, the diameter of the large fibrous bundle, the number of fibrous bundles between the two large bundles, the number of small and medium vascular bundles between the two large bundles, The area of the primary and secondary wood in the large beam, the thickness of the epidermis and waxy layer and the middle tissue). Through the results obtained, it was found that the Hamraya varietiy achieved the most returns by the number of buds in the palm, Where this breed is distinguished (Hamraya) With the largest number in the medium vascular bundles compared to other varieties, It was also characterized by the smallest thickness of the wax layer, the diameter of the medium vascular bundle as well as the diameter of the large fibrous bundle, while in The rest of the characteristics were average compared to the other varieties.Item Study of the nutritional value of seeds and leaves of some quinoa cultivars Chenopodium Quinoa Willd(Edirne. Turkiye, 2023-09-18) Ghemam Amara Djilani; Messaoudi Mohammed; Hacene LaouedjThe aim of this study is knowing some of the chemical properties of four quinoa plant varieties (white, red, black and V2). Where we focused on the chemical and nutritional compositions of the quinoa plant, and the changes are represented in the elements of nutritional value (compounds of primary metabolism, secondary metabolism and mineral content). In addition to determining electrical conductivity and acidity (pH). The results showed that white quinoa seeds are characterized by a high content of proteins compared to the other three varieties. The fat and carbohydrate content were better in red quinoa followed by black quinoa while V2 variety was the lowest content. Regarding the value of the mineral content, the content was somewhat weak for the four studied varieties, within the range of 3.5%. The results of the study on the leaves show that the mineral content is high in the range of 35%. Whereas the highest protein content was found in black quinoa leaves. The content of carbohydrates and fats was relatively high for the white quinoa, followed by the red quinoa. All of this is due to genetic factors related to the quality of seeds, plant morphology, the extent of their adaptation and tolerance to various stresses and the various influences of climatic factors.Item Morphological and anatomical comparison of leaves of date palm cultivars (Phoenix dactylifera L) grown in the southeastern region (Algeria)(University of Eloued جامعة الوادي, 2023-10-22) Laouedj, Hacene; Kheraze, Khaled; Ghemam Amara, Djilani; Keddour, AbdelbasetThis study was carried out in the laboratory of the Faculty of Natural and Life Sciences at the University of ElOued. Where this work aims to study the anatomical comparison for leaves from the date palm of five varieties (Garess, Hamraya, Deggla Bidha, Deggla Nour, Tekermist) and cultivated in the area EL-oued, Through a morphological description (Length and width of the frond, yield) and anatomical study (the diameter of the leaf, Diameter of the large, medium and small vascular bundle, the diameter of the large fibrous bundle, the number of fibrous bundle between the two large bundles, the number of small and medium vascular bundles between the two large bundles, The area of the primary and secondary wood in the large beam, the thickness of the epidermis and waxy layer and the middle tissue). Through the results obtained, it was found that the Hamraya variety achieved the highest yield in the number of inflorescences per palm tree, This variety (Hamraya) was characterized by the largest number of medium vascular bundles compared to other varieties, It was also characterized by the smallest thickness of the waxy layer, the diameter of the medium vascular bundle as well as the diameter of the large fibrous bundle, As for the rest of the studied characteristics, they differed between the largest and the smallest compared to the other varieties. نفذت هذه الدراسة في مخبر كلية العلوم الطبيعة والحياة في جامعة الشهيد حمه لخضر بالوادي للسنة الجامعية 2021/2022. حيث يهدف هذا العمل الى دراسة المقارنة التشريحية لأوراق من نخيل التمر لخمسة أصناف (غرس، حمراية، دقلة بيضاء، دقلة نور، تكرمست) والمزروعة في منطقة الوادي (حاسي خليفة)، من خلال الوصف المرفولوجي (طول و عرض السعفة، المردود ) والدراسة التشريحية (قطر مقطع الورقة، قطر الحزمة الوعائية الكبيرة، متوسطة وصغيرة، قطر الحزمة الليفية الكبيرة، عدد الحزم الليفية بين الحزمتين الكبيرتين، عدد الحزم الوعائية الصغيرة والمتوسطة بين الحزمتين الكبيرتين، مساحة الخشب الأولي والثانوي في الحزمة الكبيرة، سمك البشرة والطبقة الشمعية والنسيج الوسطي). من خلال النتائج المتحصل عليها تبين أن صنف حمراية حقق أكثر مردود من خلال عدد النويرات في النخلة، حيث تميز هذا الصنف (حمراية) بأكبر عدد في الحزم الوعائية المتوسطة مقارنة بالأصناف الأخرى، كما تميزت بأصغر سمك للطبقة الشمعية، قطر الحزمة الوعائية المتوسطة وكذلك في قطر الحزمة الليفية الكبيرة، أما في باقي الصفات فكانت متوسطة مقارنة بالأصناف الأخرى.Item Current Review on Herbal Pharmaceutical improve immune responses against COVID-19 infection(A&V Publications, 2020-07-01) Derouiche, SamirCoronavirus SARS-COV2 (COVID-19) represents the causative agent of a potentially fatal disease that is of great global public health concern. The pandemic outbreak of COVID-19 is rapidly spreading all over the world. This review aims to provide the role of Herbal Pharmaceutical in reducing the spread or complications of COVID-19 infection in the body of people. The evidence of generation of oxygen free radicals and oxidative stress is a key process in the onset of chronic disease which participate in the development of the systemic inflammatory response syndrome. Medicines of plant origin aroused a lot of interest due to their wide use, abundance, high efficacy and lack of secondary effects as an antioxidants and anti-inflammatory agents, antiviral efficacy or in their preventive efficacy of the immune system From it we suggest that the combination of conventional therapy and herbal medicine for patients infected with COVID-19 to reduce the complexities and development of the virusItem EFFECT OF EXTRACTS AQUEOUS OF PHRAGMITES AUSTRALIS ON CARBOHYDRATE METABOLISM, SOME ENZYME ACTIVITIES AND PANCREATIC ISLET TISSUE IN ALLOXAN-INDUCED DIABETIC RATS(International Journal of Pharmacy and Pharmaceutical Sciences, 2017-06) Derouiche, SAMIR; Azzi, Manel; Hamida, AbirObjective: The present study was aimed to investigate the effects of the aqueous extract of rhizome of phragmites australis on carbohydrate metabolism, some enzyme activities and pancreatic tissue in alloxan induced diabetic rats. Methods: Wistar rats were divided into three groups (n=6) as control, diabetic group and test groups (Diabetic+AEPA). Diabetes in rats was induced by alloxane using a single peritoneal injection of 150 mg/kg dose. Aqueous extract of Phragmites australis was supplemented (200 mg/kg b. w) orally for three weeks. The aqueous extract of Phragmites australis was prepared and phytochemical were analyzed by using standard methods. Blood glucose level, pancreas histology and various biochemical parameters were assessed. Results: The results of the phytochemical analysis of aqueous extract of Phragmites australis (AEPA) revealed the presence of tannin, terpenoids, glycosides and flavonoids. Compared with the control, a significant decrease in the body weight gain (p<0.01) and increase in food intake (p<0.001) were noticed in the diabetic group. The biochemical evaluation showed significantly higher values for glucose (p<0.001), lipid profile (p<0.05), transaminases (p<0.05), amylase and alkaline phosphatase (p<0.001) activities in diabetic group compared with the control. Histology of the pancreas showed congestion of vessels and focal area of necrosis in diabetic untreated rats. However, treatment with aqueous extract of Phragmites australis significantly normalized blood glucose, serum biochemical profile and pancreas histomorphology. Conclusion: It is suggested that aqueous extract of Phragmites australis exhibits a benefic effect in rat to a great extent in attenuating and restoring the damage sustained by diabetesItem Zinc Supplementation Overcomes Effects of Copper on Zinc Status, Carbohydrate Metabolism and Some Enzyme Activities in Diabetic and Nondiabetic Rats(Elsevier, 2016-08-01) DEROUICHE, Samir; Kechrid, ZineObjective: The aim of this study was to investigate the effect of zinc supplementation on zinc status, carbohydrate metabolism and some enzyme activities in rats with alloxan-induced diabetes that were fed high-copper feed. Methods: Male albino Wistar rats were randomly divided into 6 groups (n=10). The first and fourth groups were nondiabetic and diabetic controls. The second, third, fifth and sixth groups were copper, copper + zinc, diabetes + copper and diabetes + copper + zinc groups, respectively. Diabetes in the fourth, fifth and sixth groups was induced by alloxan. Copper (30 mg/kg feed) as CuSO4 5H2O and zinc (231 mg/kg feed) as ZnSO4 7H2O were added to the feed of the animals in the copper and zinc groups for 21 days. Results: Copper supplementation caused a significant decrease in body weight gain, serum zinc, tissue zinc, serum protein concentrations, alkaline phosphatase, lactic dehydrogenase and amylase activities. In contrast, it led to an augmentation in creatinine, uric acid and transaminases activities in rats with and without diabetes. Zinc supplementation in the feed for animals given copper ensured a partial correction of the previous parameters. Conclusions: The study demonstrated the beneficial effects of zinc treatment in copper-induced metabolic disturbance in diabetic and nondiabetic ratsItem STUDY OF FLUORIDE-INDUCED HAEMATOLOGICAL ALTERATIONS AND LIVER OXIDATIVE STRESS IN RATS(WORLD JOURNAL OF PHARMACY AND PHARMACEUTICAL SCIENCES, 2017-05) Djouadi, Anfal; Derouiche, SamirFluorine is a necessary biological trace element for human health. However, fluoride accumulation leads to cascading effects resulting in altered physiological functions in human being. The current studies evaluated the effect of fluoride induced hematological alterations and oxidative stress in the liver of experimental rats. For this purpose, adult female Wistar albino rats divided into control and NaF treated group. sodium Fluoride (400 mg/kg b.w) added in their drinking water for 70 days. Compared with the control, a significant decrease in the body weight gain (p<0.001) and increase in relative liver weight (p<0.001) were noticed in the NaF group Our results showed that fluoride treatment caused a increase in Granulocyte (p < 0.001), White blood cell (p < 0.001), Lymphocyte (p < 0.01) and Platelets (p < 0.01) compared with the control. In addition, it led to an increases in triglyceride (p<0.001), cholesterol (p<0.01) level, GOT (p<0.01) and GPT (p<0.001) activities in serum animal compared to the control group . In contrast fluoride caused an oxidative stress by decrease in GSH level and GST activity and increase in MDA concentration compared with the control group. In Conclusion, Results demonstrated the toxic effect of high-dose of fluoride by causing oxidative stress and inflammation in hepatic tissue.Item Biological properties and Acute Toxicity Study of Copper oxide nanoparticles prepared by aqueous leaves extract of Portulaca oleracea(A & V Publications, 2020-06-03) Atoussi, Ouidad; Chetehouna, Sara; Derouiche, SamirThe aim of this study is to use the purslan (Portulacae oleracea L) leaves aqueous extract in order to prepare copper nanoparticles and to explore antioxidant and anti-inflammatory activity of aqueous extract of P.oleracea L and CuNPs. The nanoparticles were characterized from structural and morphological point of view by using analytical techniques such as: UV-Vis spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), and Scanning Electron Microscopy (SEM). Antioxidant activity of purslane and CuNPs was studied done FRAP assay also the anti-inflammatory and hemolysis essay were studies. The acute toxicity test was applied in Wistar albino rats. Obtain results show that the SEM analysis revealed that the particle size was found to be ranging under 46 nm. On the other hand, the copper nanoparticles and purslan possessed the reducing capacity when IC50 value was 68, 316 μg/ml and 79, 675 μg/ml respectively, the anti-inflammatory ability while IC50 value was 77, 503 μg/ml and 60, 727 μg/ml respectively. In this study, the toxicity test showed no mortality or behavioral change up to 20 mg/kg of albino Wistar rats CuNPs. We concluded that Portulaca oleracea L has potential properties as biocatalyst or natural stabilizers for CuNPs synthesis. Each CuNPs as P.oleracea L leaves extract were have a reducing and anti-inflammatory capacity which can be protect the cells against the degenerative effects of Reactive Oxygen Species (ROS).Item Study of oxidative stress during pregnancy(Juniper Publishers, 2017-10-10) Derouiche, Samir; Doudi, Dalal; Atia, NouraOxidative stress is defined as an imbalance in the balance between antioxidants and pro-oxidants in favor of antioxidants. The increase in lipid peroxidation and the significant decrease in GSH and total antioxidant power ORAC in the serum and erythrocytes of pregnant women especially during the third trimester of pregnancy clearly show the evolution of the state of stress oxidative therapy associated with pregnancy in pregnant women. So pregnancy is a physiological state characterized by oxidative disturbance that contributes to the initiation and progression of complications associated with pregnancyItem Oxidative Stress Associated with SARS-Cov-2 (COVID-19) Increases the Severity of the Lung Disease - A Systematic Review(Journal of Infectious Diseases and Epidemiology, 2020-05-04) Derouiche, SamirCOVID-19 patients have a higher risk of developing inflammatory responses associated with serious and even fatal respiratory diseases. This review focuses on the relationship between oxidative stress and COVID-19. Coronaviruses are a family of common RNA viruses that can cause serious lower respiratory tract infections, followed by bronchitis and pneumonia. Pulmonary inflammation, fever and fibrosis are symptoms of COVID-19 mediated by cytokine pro-inflammatory. Oxidative stress affect repair mechanisms and the immune control system, which is one of the main events of the inflammatory response which allows us also to conclude that oxidative stress is a major factor increasing the severity of COVID-19 especially during chronic diseases associated with the fragility of the antioxidant system, suggesting to recommend antioxidants supplementation in therapeutic strategies against COVID-19.Item Bio-activity of essential oils from Cymbopogon schoenanthus L(University of Eloued جامعة الوادي, 2021-10-24) KADRI, Mounira; BELBOUT, Amel; SALHI, Nasrine; YAHIA, Abedelouahabالفعالية البيولوجية للزيت الأساسي للماد Cymbopogon schoenanthus L تهدف هذه الدراسة إلى التحقق من الفعالية المضادة للأكسدة و الفعالية ضد بكتيرية للزيت الأساسي لنبات اللماد النامي في الصحراء الجزائرية تم استخلاص الزيت الأساسي للجزء الخضري للماد عن طريق التقطير المائي (كليفنجر) لمدة 3 ساعات. أما الفعالية البكتيرية للزيت الأساسي للماد فاستعملنا طريقة الانتشار عبر الأقراص في وسط الجيلوز . السلالات البكتيرية المختبرة هي .Klebsiella pneumoniae ATCC 700603, Listeria innocua Clip74915, Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Salmonella enterica ssp. Arizonae CIP 81, Staphylococcus aureus ATCC 25923, Bacillus cereus, Enterococcus faecalis الفعالية المضادة للأكسدة تم اختبارها عن طريق قدرة الزيت على كبح الجذر الحر للDPPH. نبات اللماد غني بالزيت الأساسي و الذي قدر مردوده بـ 6.06±0.54 % كما قدرت قيمة IC50 في الفعالة المضادة للأكسدة ب28.82±11.72 mg/ml لم يكن للزيت الأاسي تأثير واضح على السلالت البكتيرية Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Salmonella enterica ssp. Arizonae CIP 81, Bacillus cereus, Enterococcus faecalis،لكنه اضهر فعالية ضد Klebsiella pneumoniae, Listeria innocua, Staphylococcus aureus،و أعلى قطر تثبيط رسم عند السلالة Klebsiella pneumoniae,بـ 36.67±1.53mm. Bio-activity of essential oils from Cymbopogon schoenanthus L. This study aimed at investigating the Antioxidant and antibacterial activity of essential oils from Cymbopogon schoenanthus L. (spreng) was collected of south Algeria. The essential oils were extracted by hydrodistillation of fresh aerial part of C. schoenanthus a (Clevenger-type apparatus) for 3 h. The antimicrobial activity of C. schoenanthus essential oil was evaluated using Agar well-diffusion test (Lopes-Lutz et al., 2008). The microorganisms tested were Klebsiella pneumoniae ATCC 700603, Listeria innocua Clip74915, Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Salmonella enterica ssp. Arizonae CIP 81, Staphylococcus aureus ATCC 25923, Bacillus cereus, Enterococcus faecalis. The antioxidant and free radical scavenging activity were determined by spectrophotome, Based on DPPH hydroxyl radical scavenging activity. The Cymbopogon schoenanthus was rich in essential oil, yielding (6,06±0,54%). Antioxidant activity essential oil has been done by using DPPH essay. IC50 values observed for DPPH essay were 28,82±11,72 mg/ml. The essential oil was not effective against Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Salmonella enterica ssp. Arizonae CIP 81, Bacillus cereus, Enterococcus faecalis. The essential oil of C. schoenanthus has an antibacterial effect against, Klebsiella pneumoniae, Listeria innocua, Staphylococcus aureus, the Highest inhibition was noted against Klebsiella pneumoniae (36,67±1,53mm).Item The Effect of natural organic manure on the growth and productivity ofpotato (solanum tuberosum Z var spunta) in a Sahara desert region(University of Eloued جامعة الوادي, 2013-12-17) Ghemam Amarad, D.; Senoussi, M. M.Many studies have been carried out on the growth, productivity and nutritional properties of potato, including the effects of organic manures on tuber yield and quality. However, there are few studies on the effect of organic manure on potatoes agriculture in arid zones. The main objective of this study was to investigate the effects of natural organic manure on the growth and productivity of potato (Solanum tuberosum, cv. Spunta) in a Saharian region (El-oued, Algeria). An experiment was laid out out in a randomized complete block design (RCBD), with four replications and five labeled treatments, the control (no manure), the common fertilization treatment applied by the potatoes farmers 2 q/h (15-15-15 NPK) + 25 t/h poultry manure, 50 t/h of poultry manure, sheep manure and 50 t/h of mixed manure poulty and sheep 1:1 w/w. Results showed an increase in the foliage area, plant cover area and the number of stems per plants by adding poultry manure, and mixed manure more treatments of mixed manure (poultry and NPK) or sheep manure in comparison with control (no manure). The treatment by mixed manure showed significant increase in the number of tubers per plant in comparison with other treatments, but all the used treaments caused a significant increase in the tuber weights and the quantity of production and the percent of standard tubers in comparison with control. The treatments with poultry manure gave the hihest yied in increasing the yield with high significant difference incomparison to other treatments. Thus, the combination of natural organic manures and low rates of inorganic fertilizers is a promising low cost option in production of high yields of potatoes.Item Composition chimique et évaluation des activités biologiques de la partie aérienne d,une plante endémique Myrtus nivellei(University of eloued جامعة الوادي, 2017-10-05) Ramdane, Farah; Mahfoud, Hadj Mahammed; Ould Hadj Mohamed, DidiLes substances naturelles issues des végétaux ont des intérêts multiples mis à profit dans l'industrie: en alimentation, en cosmétologie et en dermopharmacie. Parmi ces composés on retrouve dans une grande mesure les métabolites secondaires qui se sont surtout illustrés en thérapeutique. Selon lalittérature, les composés d'origine naturelle présentent I'avantage d'une très grande diversité de structures chimiques et ils possèdent aussi un très large éventail d'activités biologiques, dans le but d'avoir des nouvelles ressources bioactive; nous avons réalisé une étude ethnobotanique dans le Hoggar afin de connaitre l'utilisation de cette plante dans la médecine populaire, ensuite Les constituants des huiles essentielles des parties aériennes de cette plante extraites par hydrodistillation ont été analysés par GC-MS. Cette analyse fait apparaître 24 composés représentant 98,87yo de I'huile total. Le 1,8 cineole (53,44%) est le composé majoritaire de cette huile suivi par 12,2, 6,7-tetramethyl-10- oxatricyclo 14.3.0.1(1,7)]decan-5-one (ll,73Yo), trans ocimene (7,54yo),linalyl propirionate (6,8t%) et lavandulyl acetate (5,24%). Cette huile a montré une activité importante contre le radical DPPH. L'activité antibactérienne de cette huile a été déterminée par la méthode de diffusion sur des souches Gram positif et d'autres Gram négatif, cette huile n'a pas montré une efficacité que sur la souche testée Listeria monocytogenes. Egalement l'huile de cette espèce a inhibé modérément la charge parasitaire testée particulièrement la souche Leishmania majorItem ETUDE PHYTOCHIMQUE ET BIOLGIQUE D'EXTRAIT METHANOLIQUE DU ZIZYPHUS LOTUS L.(University of eloued جامعة الوادي, 2017-10-05) Kadri, Mounira; Salhi, Nasrine; Abdelouahad, Yahia; Sahraoui, Nada; Selami, AmelItem Effect of some medicinal plant extracts to combat disease worm (Ectomyelois ceratoniaezeller) in the date Deglet Nour (phoenix dactyliieraL.)(University of eloued جامعة الوادي, 2017-10-05) Hamada, Samra; BelhamraThe varietyDeglet NourPhoenx dactytifera is the most famous and exporters date with an annual production of 26.5 million q/years. Because of the spread of some diseases and pests, especially worm dates Ectomyelois ceratoniae, as well as birds are harmful to its production marvelous is lost annually between 2O% to 30%, therefore the objective of this research, comes within the framework of agricultural development of wealth fruit of the date palms, and developing comprehensive strategy to combat diseases tree date palm. Applications of modern research appeared to àontrol crop pestJând vegetables, using of bioactive natural products as herbals, to protect agricultural production and human health. The first step of this research is the identification of medic]nal plants collected, and selected of more than 20 plants, and to know the nature of the Principe activé ingredients in each plant'As for the effect-of some extracts applied, we find an influence effectively à percentage the death of the worm: Alllum sativum (peel and cloves of garlic),Artemisia herbà aba, i-hapsia garganica, Teucrium polium, Euphorbia peptus, Solanum tuberosum, Papaver somniferum, punica gratum, and Camellia slnensi. The tested plant extracts are efficacy to combat against a disease worm dates Ecfomyelois ceratoniae, and we can use them as insecticideô.Item Effect of some agricultural residues on the characteristics of growth and yield of the onion bulb (Allium cepa L)(University of eloued جامعة الوادي, 2019-04-15) Ghemam Amara, Djilani; Rebiai, Abdelkrim; Alia, Zaid; Djihad, Saoud; Kherraz, Khaled; Mesbahi, Mohammed Adel; Chemsa, Ahmed Elkhalifa; Senoussi, Mohammad Mouradthe study was conducted at the primary school farm in Rabbah zone during in 2016/2017 season, To evaluate the contribution of fram residues (palm residues, Peanut Peels, cooked tea leaves) in vegetative growth and the bulb onion in addition to the total yield of onion plant. An investigation was a randomized complete block design in three replications. The obtained results of experiment showed that: - Application of fertilize by cooked tea leaves were significantly better in of the studied characters (plants height and Leaves Area) with rate increased to 47.15% and 93.4% respectively, than control treatment. Followed by T1 and then T3. - Peanut Peels treatment gave the largest number of tubular blades in the plant(12.33), the diameter of the bulb neck(13.48mm) and bulb Length(7.35cm) than other treatments. Followed by T2 and then T3. -cooked tea leaves plants gave highest diameter of bulb(5.42cm), highest bulb weight(66g) and yield(20.85 t/ha) in the season. where Achieving with T1(18.35t/ha) significantly increase in the yield total in comparison with other treatments.