Scientific Journal for Damietta Faculty of Science最新文献

{"title":"Effect of Garlic and Licorice Extracts on Vegetative Growth and Leaf Anatomy of Strawberry Plants Cultivated in Different Growing Media","authors":"A. Wanas, MennatAllah I. Khamis","doi":"10.21608/sjdfs.2021.195598","DOIUrl":"https://doi.org/10.21608/sjdfs.2021.195598","url":null,"abstract":"","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81736007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Form of the Nitrogen Source Affects the Response of the Two Congeneric Rumex Species to Phosphorus Nutrition in The Nile Delta Coast","authors":"T. El-Katony, A. Khedr, S. Abo-Shosha, A. El-Biany, I. Omar","doi":"10.21608/sjdfs.2021.195587","DOIUrl":"https://doi.org/10.21608/sjdfs.2021.195587","url":null,"abstract":"Phosphorus and nitrogen are limiting plant nutrients in young and old weathered soils, respectively. We investigated the N × P interaction on performance of Rumex dentatus and R. pictus . Plants were grown on washed sand and supplied with 11 mM N either as nitrate or ammonium and 0.01, 0.15, 0.40, 1.0 and 1.5 mM P. Rumex , particularly R. dentatus , preferred nitrate over ammonium as N source. Nitrate nutrition favored succulence of R. dentatus but the reverse was true in R. pictus. The optimum P supply of Rumex spp. under nitrate (0.4 mM) was lower than that under ammonium nutrition (1.5 mM P). R. dentatus exhibited less number of leaves but longer and wider blades compared with R. pictus . Allocation of plant biomass to root was favored under ammonium nutrition and P deficiency, particularly in R. pictus . Increasing P supply increased Chl a and carotenoid concentrations but reduced Chl b concentration. Soluble sugars were higher under nitrate nutrition compared with ammonium only in R. pictus , with limited effect of P supply. The higher proline concentration under ammonium compared with nitrate nutrition and under P deficiency is not a consequence of impaired protein synthesis and suggests that ammonium might be stressful, particularly to R. dentatus . Only in R. dentatus , nitrate nutrition led to higher phenolic concentration and DPPH scavenging activity but to lower malondialdehyde content relative to ammonium. Increasing P supply increased phenolic concentration and DPPH scavenging activity but reduced malondialdehyde content. The concentrations of K+ and Na+ in the shoot were non-significantly affected by the form of N but exhibited marked genotypic variability in favor of R . dentatus. Increasing P supply non-significantly affected shoot K+ concentration but reduced Na+ concentration. Shoot nitrogen concentration was higher in R . dentatus than R. pictus and under nitrate over ammonium nutrition only in R. pictus. The increase in P supply increased P concentration particularly in the ammonium-fed plants. Phosphorus concentration of the shoot was significantly higher in R. pictus than R. dentatus under ammonium nutrition but the reverse was true under nitrate nutrition.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79997772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Determination of available heavy metal concentrations in River Nile sediments, Damietta, Egypt","authors":"E. Assal, M. Khalil, A. Rakha, Mohamed Elakad","doi":"10.21608/sjdfs.2020.194996","DOIUrl":"https://doi.org/10.21608/sjdfs.2020.194996","url":null,"abstract":"The present study investigates the distribution and available concentrations of As, Co, Cu, Fe, Sb, Zn, Cd, Se, Ni, Pb in the bottom sediment of the Damietta Nile branch. Available concentrations were determined using the DTPA extraction method. The mean available concentrations were arranged as follows As > Fe > Cu > Zn > Co > Se > Ni > Pb > Sb > Cd. Clustering analysis represents a clear difference between two groups of heavy metal concentrations before and after Damietta Dam. Textural classifications and Total organic matter have been studies. The matrix correlation coefficient, comparison between other studies has been evaluated.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80402368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Groundwater Quality of the Miocene Aquifer and its suitability for Domestic and Agriculture Purposes, West Nile Delta, Egypt","authors":"Ahmed ElMahmoudi, A. Shalaby, H. Aboelkhair, Eslam Rashad","doi":"10.21608/sjdfs.2020.195002","DOIUrl":"https://doi.org/10.21608/sjdfs.2020.195002","url":null,"abstract":"This study was conducted to evaluate factors regulating groundwater quality in an area with agriculture as main use. Thirty three groundwater samples have been collected from the area between El-Sadat and El-Khatatba city. The study area covers an area of approximately 634 km2. Rapid development in recent years has led to an increased demand for water, which is increasingly being fulfilled by groundwater abstraction. A detailed knowledge of the water quality can enhance understanding of the hydrochemical system, to achieve this; a hydrochemical investigation was carried out in the study area. Groundwater samples were chemically analyzed for major physicochemical parameters in order to understand the different geochemical processes affecting the groundwater quality. The analytical results show higher concentration of total dissolved solids (21%), chloride (24%), and total hardness (30%), calcium (9%) and sodium (36.4%) which indicates signs of deterioration as compared with limits of WHO (2011) standards. On the other hand, 3% groundwater sample is unsuitable for irrigation purposes according to Soluble Sodium Percent (SSP) and Kelley’s Ratio (KR) represent 60% of samples are suitable based on irrigation quality parameters. The study revealed that application of fertilizer for agricultural contributing the higher concentration of ions in aquifer of Miocene.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79128287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Niche differentiation of two congeneric Phlomis species in Egypt","authors":"A. Khedr, T. El-Katony, K. Saad-Allah, Fatma Ahmed, Mohamed Kashlana","doi":"10.21608/sjdfs.2020.194999","DOIUrl":"https://doi.org/10.21608/sjdfs.2020.194999","url":null,"abstract":"Phlomis aurea Decne. and Phlomis floccosa D. Don. exhibit different ecological and geographical distribution range in Egypt. Phlomis aurea is endemic to Saint Katherine Protectorate (SKP), South Sinai with narrow geographic distribution, but wide ecological range. Phlomis floccosa has wide geographical and ecological range within the coastal western Mediterranean coast of Egypt. Unlike P. floccosa, P. aurea has wide altitudinal range which increases its resistance to climate changes. Here, we assessed the effect of microhabitats on growth parameters and plant vigor of P. aurea and P. floccosa. The maximum EC of the soil in the various microhabitats supporting P. floccosa (950 μS/cm) is substantially higher than that of P. aurea (110 μS/cm). Both Phlomis species had low number of associated species which may be related to habitat aridity. The results indicate that the microhabitats supporting both species are the best environments for future conservation of these species under the impact of climate change.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81288609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of Surface Water Quality in the Damietta Branch of Nile River, Egypt","authors":"Ibrahim H. Smysem, A. Khidr, M. Bahnasawy, Mohamed M. El-Komi","doi":"10.21608/sjdfs.2020.194994","DOIUrl":"https://doi.org/10.21608/sjdfs.2020.194994","url":null,"abstract":"The major aim of the present study is to evaluate the surface water quality at a part of the Damietta branch, Nile River of Egypt via the measurement of some physicochemical parameters followed by calculation of water quality index (WQI). WQI is considered a simple and effective tool successfully applied for the assessment and investigation of the status and quality of the surface water in any ecosystem. A total of 21 parameters was monitored and measured at ten stations for a year from January to December 2014. Correlation coefficients for physicochemical parameters showed that only turbidity, dissolved oxygen, biochemical oxygen demand, ammonia, and silicate had spatial significant variability. Almost the highest average values appeared at station III. The calculated WQI manifested that the highest value was 66.70% at station IX, while the lowest was 56.44 % at station III. One-way analysis of variance (ANOVA) showed that water quality in the autumn season was higher than the summer months while the spatial significant variability of the WQI confirmed that the St.III. recorded the worst sites, while the sites of the East Bank had; almost the highest average values appeared Generally, most stations found in a medium quality. Damietta branch eastern bank was better than the western one. The mean values of most measured parameters were within the threshold limits in comparison to Egyptian environmental standards regularities (EESR). WQI will be useful mechanism for regular monitoring.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"83 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88067989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on Structural and Dielectrical Properties of some Chloroquinoxaline Derivatives","authors":"N. El-Ghamaz, Eman A. Gaml, Hajar Abusnina","doi":"10.21608/sjdfs.2020.194998","DOIUrl":"https://doi.org/10.21608/sjdfs.2020.194998","url":null,"abstract":"The structural, thermal and electrical properties of three chloroquinoxaline derivatives are investigated by X-ray diffraction (XRD) and differential scanning calorimetric (DSC) techniques. It is found that the chemical composition affected the structure and thermal stability of each derivative. The dielectric properties of the three derivatives are investigated in the frequency range 100 Hz 5MHz and in the temperature range 300 470 K. The behaviors of the real and imaginary parts of the dielectric constant is investigated. Also, the AC conductivity as a function of both temperature and frequency is studied. The charge carrier’s conduction mechanism is found to follow the quantum mechanical tunneling (QMT) model. The complex bulk modulus is also investigated.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90493959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of different habitats on some C3 and C4 species of poaceae growing in Nile delta","authors":"S. Rabei, M. Serag, Wesam M.H. Abdallah, R. Nada","doi":"10.21608/sjdfs.2020.194995","DOIUrl":"https://doi.org/10.21608/sjdfs.2020.194995","url":null,"abstract":"Seven sites were surveyed for collecting samples of C4 and C3 plants of Poaceae family from aquatic and terrestrial habitats. C4 plants include Saccharum sp., Saccharum spontaneum, Echinochloa stagnina, Echinochloa colona and Echinochloa crusgalli. C3 plants include Phragmite australis and Leersia hexandra. Morphological description and anatomical characteristics of culm and leaf were studied in the two habitat. Growth rate and anatomical features of studied species affected by altering habitat from aquatic to terrestrial habitat. Morphological and anatomical characters were recorded and the data were analyzed using Past Software V. Cluster analysis was done depending on morphological characters and anatomical characters separately. The   relationship   between   the   studied   species depending  on  morphological  characters  different from  that  based  on  the  anatomical  characters. Also, the relationship between studied C3 and C4 species affected by altering the habitat from aquatic to terrestrial one.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79979810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neutrophils to lymphocytes and platelets to lymphocytes ratios in patients with chronic hepatitis B virus","authors":"G. Shiha, E. Toson, Ryham EL-Sawah","doi":"10.21608/sjdfs.2020.195001","DOIUrl":"https://doi.org/10.21608/sjdfs.2020.195001","url":null,"abstract":"Systemic liver inflammation occurs as the result of liver injury. This can be cause by hepatitis B virus (HBV) infection. Whether neutrophils to lymphocytes ratio (NLR) and platelets to lymphocytes ratio (PLR) are capable to be included as systemic inflammatory markers or not will be investigated. Their correlations with liver function tests and with viral DNA were also tested in patients with chronic hepatitis B (CHB).Patients and Methods: Blood sample were taken from patients (n=42) and from the healthy control (n=20).HBV-DNA, hepatitis B surface antigen (HBsAg), total white blood cells count as well as neutrophils, lymphocytes and platelets were done for each individual. Also, liver function tests were estimated. Results: The platelets counts in the blood of patients was significantly decreased when compared with that of the healthy control (P<0.002).The percentage of neutrophil was also decreased in patients when compare with the control value. Such percent was not significant (P<0.837). Further, the percentage of lymphocyte was not significantly increased in the blood of patients when compare with the healthy control value (P<0.72). Taken together, the NLR and PLR were decreased in patients when compare with the healthy control values but such decreases were not significant (P<0.89 and 0.28, respectively). PLR was significantly and positively correlated with ALT and viral DNA (P<0.02, P<0.04, respectively). Conclusion: NLR and PLR, as systemic inflammatory markers cannot be used as indicators for the presence of liver inflammation in chronic hepatitis B (CHB) patients. In spite, such chronicity can only reduce platelets and lymphocytic counts.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74786394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of cultural conditions for production of antifungal metabolites by Streptomyces gougeroti","authors":"M. Abodobara, Amira A. El-Falal, M. Mousa, Enas Shaaban","doi":"10.21608/sjdfs.2020.194997","DOIUrl":"https://doi.org/10.21608/sjdfs.2020.194997","url":null,"abstract":"Use of antagonist microorganisms against fungal plant pathogens is an attractive and ecologically alternative to the use of chemical pesticides. Streptomyces spp. are beneficial soil bacteria and potential candidates for biocontrol agents. Different Streptomyces species were isolated from different sources sites from soil in Damietta. During primary and secondary screening, some actinomyctes isolates showed antifungal activity against tested phyto pathogenic fungi (Penicillium italicum, Macrophomina phaseolina, Fusarium oxysporium, F. solani, Alternaria alternata, Sclerotina sclerotiorum and Rhizoctonia solani ). The results showed that the most active isolate against tested phyto pathogenic fungi Macrophomina phaseolina and Alternaria alternata was identified as Streptomyces gougeroti. Streptomyces gougeroti showed maximum antifungal activity against Alternaria alternata and Macrophomina phaseolina at 35°C ± 2, pH 6.5. Glycerol and beef extract were the best carbon and nitrogen sources used respectively.","PeriodicalId":21655,"journal":{"name":"Scientific Journal for Damietta Faculty of Science","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84450368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}