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SPROUTING USING SALINE WATER ON CHEMICAL COMPOSITION, ANTINUTRITIONAL COMPOUNDS AND AMINO ACID PROFILE OF CHICKPEA AND LENTIL SEEDS Full text
2018
M. Abd EI-Azim | Nashwa Abo EI-Azam | Afaf Serage | M. AbdaIIah
Lentil and Chickpea seeds were used to investigated the effect of seed sprouting using tap and saline water on sprout growth, proximate analysis, energy, minerals content, anti-nutritional compounds and amino acid profile of sprouted samples comparing with dry seeds. Result revealed that higher NaCl concentration > 2000 ppm reduce sprouts radical length of both lentil and chickpea. Sterilized seeds sprouting using tap water and non-sterilized seeds sprouting using saline water decreased sprout moisture content and carbohydrate which resulting in reducing faecal and total coliform counts for both lentil and chickpea. Moreover these treatment increased protein content and energy, (Kcal /g) as compared with dry seeds and other treatments. Sprouting decreased antinutritional compounds compared with dry seeds with sharbly decreament in phytic acid followed by taninins content. Mineral content in sprouts were recorded. The chickpea sprout sample using steralized seeds with tap water for sprouting serve as good sources calcium and phosphorous . Amino acid profile of lentil and chickpea sprouts were also studied. Sprouts using saline water recorded higher lysine amino acid value compared with dry seeds while non-steralized chickpea seeds sprouts using saline water recorded the higher total sulpher amino acid (Methionen + Cystiean) value. Based on these results, sprouting process is recommended to increase nutritive value and decreased antinutritional compounds of lentil and chickpea seeds.
Show more [+] Less [-]ECONOMETRIC MODEL OF DETERMINANTS OF THE EGYPTIAN WATER RESOURCES Full text
2018
R. El-Sayed | A. AbdelMaksoud | Y. Arafa
forts to try to overcome all obstacles to water supply in the short and long run. Especially in the light of contemporary changes, especially the construction of the Al-Nahda Dam, and therefore the aim of the research to identify the most important determinants of water resources in Egypt, in preparation for inclusion in a proposed mechanism for the promotion of water resources in Egypt. The research aimed at analyzing the economics of water resources in Egyptian agriculture to identify the most important economic determinants facing the Egyptian water resources sector in general and the water uses in Egyptian agriculture in particular, as well as the most important strengths, weaknesses, opportunities and threats facing the Egyptian water sector. The results of the statistical assessment of the econometric model of the Egyptian water resource determinants under the influence of water policies show that the supply of available water resources is increasing by about 210 million cubic meters due to the Egyptian government adopting water policies aimed at rationalizing the use of water in all aspects of life, The repercussions of the construction of the Al-Nahda Dam have been in recent times. The most important of these policies is the reduction of cultivated areas of water crops, the development of plant varieties and varieties of strategic crops with lower water consumption rates, the expansion of the application of wastewater treatment technology, the expansion and adoption of modern irrigation techniques, and the lining and clearing of canals, waterways and other policies. Especially in recent times.
Show more [+] Less [-]GREEN PEA SPROUT RESPONSE TO MICROBIAL INOCULATION AND INCREASING ATMOSPHERIC CO2 CONCENTRATION Full text
2018
Nahed Eissa | Mona Zayed | M. Hassanein | M. Abdallah
Baby pea (pisum sativum L.) shoots is a new ready to eat baby leaf vegetable sprouts in Egypt. The overall quality change of baby pea shoots is greatly affected by surrounding environmental conditions especially increased elevation of carbon dioxide concentration in the air. This work focus on the impacts of predicted climate changes conditions on the quality of baby pea shoots by using two carbon dioxide concentrations (600 and 800 ppm) compared with ambient air (control) in interaction with three microbial inoculants and their combinations, in semi-automated growth chambers using tray sprouting method. The obtained results showed the largest yield of pea sprouts per unit area in 800 ppm CO2 concentration with increasing about 20% more than ambient air (control) followed by 600 ppm with increasing about 9.4% than ambient air. Also, it revealed that using CO2 at 800 ppm increased pea sprout crude protein content 37.8%, lipid 46.9% and energy 19.5% per unit area when compared to ambient air. While pea sprout treated by 800 ppm CO2 and inoculated by combination of Az. chroococcum + B. megaterium + Ps. fluorescens recorded the highest significant shoot length in the second cut and highest significant chlorophyll in first and second being 13.25 cm, 57.3 and 58.9 μg Chl./cm (SPAD) and the highest significant protein, lipids, and ash content being 48.65, 4.95, 10.69% as well as the highest significant mineral values of P, Ca, Mg, Fe and Zn being 0.545, 3.535, 0.620% and 61.3 ppm respectively. Current study suggests that high CO2 concentration in the presence of Az. chroococcum + B. megaterium + Ps. fluorescens improve the yield and the quality of baby pea shoots.
Show more [+] Less [-]THE ROLE OF THE AGRICULTURAL POLICIES ON ACHIEVING SUSTAINABLE DEVELOPMENT OF LAND RESOURCE IN EGYPT Full text
2018
Ekram Abdelrahman
Egyptian agricultural lands are subject to many constraints and challenges which negatively impact the ability of the state to produce the food needs of the present and the inability to provide food needs As a result of the difficulty of reexploiting the land in agricultural activity with the same efficiency, only by providing a large amount of financial resources that were supposed to be directed to the development of the agricultural sector and improve the standard of living of the population. The research aims to study the role of agricultural policies in the development and protection of agricultural land, The results showed, the land area of the first class declined to less than 45% during the period (1996-2000), The total area of agricultural land that has been violated since 1983 until 1/10/2017 about 318.5 thousand acres, of which about 27 thousand acres, the percentage of the removal of the violations of about 30.20 % Since 25/1/2011 until 1/10/2017. It is expected that the proportion of agricultural land of the total area of the total area of Egypt about 3.88% in 2016 and will be about 4.06% in 2020, an increase of about 1.4%, representing about 52.6% from 1990 .The results of the analysis showed that the area will increase in the coming years, Means that the policies are in the right direction towards the sustainability of agricultural land resources with the need to follow up and develop solutions that reduce and respond to the deterioration and decline of agricultural land in Egypt to achieve sustainable agricultural development.
Show more [+] Less [-]REUSE OF WASTE DRAINAGE WATER AFTER ITS TREATMENT USING PGPRS TO IRRIGATE SOME HORTICULTURAL CROPS Full text
2018
Marwa Kahlil | Wedad Eweda | M. Omar | Mona Orabi | K. Imam
Natural sources of water are limited in Egypt. The rapidly growing populations necessitate continuous expansion of the cultivated area. This means an increase of the gap between the demands of water for irrigation and the limited water supply. Looking for other sources such as low quality water like (industrial effluent, drainage and sewage) must be used in irrigation of some garden and wood plants. This investigation was conducted on agricultural drainage wastewater from El Mohete drain (Marioteya Canal) west of Cairo; the samples were collected from different places during (Summer and Winter seasons). The wastewater contaminated with pathogenic microorganisms, the excess of fertilizers (inorganic & organic), heavy metals, and the residuals of pesticides. Plant Growth Promoting Rhizobacteria (PGPR) could remediate the wastewater as biological bioremediation to remove some pollutants such as pathogenic microorganisms, heavy metals and pesticides. Chemical remediation was used as nitrification inhibitor to stop transformation of ammonia to nitrate. This work was conducted to study the ability of PGPR strains e.g. Bacillus megaterium, Bacillus subtillis, Bacillus circulans, Paenibacillus polymyxa, Pseudomonas floresense, Serratia sp. and Azotobacter chroococcum 5, 9 and 23 to treat the drainage water for irrigation the Mentha viridis cv. and Gladiolas grandiflorus cv. plants. Two pot experiments were conducted in greenhouse. The treatments were applied as follows; Natural water, treated water and drainage water to irrigate the plant. Use the PGPR as inoculants and thiourea as nitrification inhibitor, Heavy metal treated was (Copper, Cobalt, Zinc, Cadmium and Mercury) the result showed us heavy metals removal by PGPR from drainage water. The characterizations of PGPRs as shown in the obtained results are they could enhance plant growth by using their own metabolism (solublizing phosphate, producing hormones or fixing nitrogen) as well as correlation of them with the potenit of effects on the growth of plants in unfavorable conditions in order to improve the efficiency of phytoremdiation of contarinated soils. The removal of heavy metals and the elimination of pesticides residues were markedly noticed in this investigation. Results also confirmed the ability of PGPRs in suppressing the effect of pathogenic bacteria like Salmonellasp and E.coli. These abilities are of great importance in terms of plant and soil health. Consequently, the role of PGPRs bacteria associated with plant rhizosphere in remediation of water and soil contaminations due to its biochemical activity and thus, stimulate plant growth is a great important subject in phytoremediation process nowadays.
Show more [+] Less [-]PERFORMACE EVALUATION OF SOLAR PHOTOVOLTAIC PUMP FOR OPERATING OF LANDSCAPE SYSTEM Full text
2018
B. Swidan | M. Mostafa
Most landscapes requires the water essentially, water pumping consumes a significant amount energy. The study carried out to evaluate the performance of a solar water pumping system for the purpose of operating landscape system. The system consists of a centrifugal water pump connected directly to DC electric motor that which connected directly to a solar photovoltaic generator. Field test had been carried out at Menofia Governorate, Egypt. Measurements were taken every hour starting from 8:00 AM to 4:00 PM through randomly selected days during the period between August 2016 and February 2017. Results show the relation between the solar radiation and the output electrical power, hydraulic power, pumping rates and the efficiency of the system. System evaluation was carried out by estimating the intensity of solar radiation, Photovoltaic output power and the hydraulic power generated. The PV output power was 712 W at solar radiation intensity of 841 W/m². Also, photovoltaic generator and pumping system efficiencies were 14.98% and 14.21% respectively.
Show more [+] Less [-]FRUCTO SYRUP FROM WHEY MILK VIA BIOTECHNOLOGY Full text
2018
Randa Rafeh | M. Hikal | A. Abdelrazik | Hoida El-Shazly | S. Ali
The present study deal with hydrolysis of lactose by kluyveromyces fragilis that grown in Whey and synthetic mediumandthe effect of incubated temperature and pH on enzyme activity Lactase (ß- galactosidase) that hydrolyze lactose in whey milk and synthetic medium .Also the conversion of glucose that released from lactose hydrolysis by kluyveromyces fragilis into fructose via addition of glucose isomerase. The present work showed that the optimum pH and incubated temperature were (4,35°C) respectively to optimum enzyme activity Lactase with total glucose reached 60.21 mg/ 100ml in whey medium and 58.61 mg/100ml in synthetic medium after 24 hours. In addition fructose content was 48.15 mg/100ml from released glucose in whey milk that confirmed due to the highest sweet syrup. In conclusion, this study indicated that ability of kluyveromyces fragilis to hydrolyze lactose in natural whey milk higher than synthetic medium.
Show more [+] Less [-]EFFECT OF SOWING MEDIUM AND NITROGEN FERTILIZATION RATES ON PRODUCTION AND GROWTH OF MAHOGANY (SWEITINIA MACROPHYLLA) SEEDLINGS Full text
2018
This study was carried out at the nursery of Horticulture Department, Faculty of Agriculture, Ain Shames University during two seasons of 2015 and 2016 to study the effect of sowing medium and fertilization rates on vegetative growth and chemical composition of Swietenia macrophylla seedlings. Three different sowing media were used i.e., S M1= perlite: peat moss: compost (1:1:1), SM2 = perlite: peat moss: compost (1:2:1) and SM3 = perlite: peat moss: compost (1:1:2) (v/v). Also, four fertilization rates were used as follow: without fertilizer (control), 5, 10 and 15 g /plant of hydrocomplex fertilizer .The following data were recorded, stem length (cm), stem diameter (cm), number of leaves / plant, leaf area (cm2) and total fresh and dry biomass (gm). Moreover, chlorophyll a & b leaves contents (mg/g FW.), total carbohydrate content (mg/g DW), nitrogen, phosphorus and potassium content in leaves (% D.W.) were determined. Regarding the effect of sowing medium, the obtained results showed that, using sowing medium which content the highest percentage of compost (1:1:2) significantly increased stem length, stem diameter, number of leaves/ plant, leaf area, total fresh and dry biomass, total carbohydrate content and potassium leaves content in comparison the other growing medium while, the differences were insignificant in chlorophyll a & b, nitrogen and phosphorus leaves content. Concerning the effect of fertilization rates, using fertilization at the rate of 15g/plant caused significantly increased stem length, stem diameter , number of leaves / plant, leaf area, total fresh and dry biomass, chlorophyll a & b content, total carbohydrate content, nitrogen, phosphorus and potassium leaves content in comparison the other fertilization rates with the exception of leaf area, chlorophyll a , phosphorus and potassium leaves content at the rate of 10g/plant in the second seasons only. As for the interaction between sowing medium and fertilization rates, In general, application of growing medium which contain thehigh ratio of compost (1:1:2) was superior in all tested characteristics followed by which contain the high ratio of peat moss (1:2:1)at 15 gm fertilizationas compared to the other treatments.
Show more [+] Less [-]IMPACT OF BIOPOLYMERS ON ENHANCING SOIL PHYSICAL PROPERTIES Full text
2018
Sodaf Ahmed | Saad El-Dein A. | Enas Hassan | T. El-Tayeb | A. Abd El-Hafez
ones are the most dominant in the new reclaimed areas in Egypt. The main production constraints of this type of soil are low in organic carbon, porosity, stable aggregates, water retention capacity, and biological activities. Agriculture soil should have not only a good structure but also a good structure which can persist for a long time (e.g., a structure of high quality and stability). Soil aggregates are structural units of soil, which create complex pore systems controlling gas and water storage and fluxes in soil. Formation and stability of natural soil aggregates are affected by dozens of different factors and their individual effects are hardly distinguishable. Therefore, to observe more clear the mechanisms governing their water and mechanical stability, it was found necessary to study soil aggregates. In that sence, some studies showed encouraging findings of increasing soil stable aggregates due to using different soil conditioners. The objective of this work is to assess some extracellular polysaccharides biopolymers, i.e., Dextran, Alginate, Xanthan, Pullulan, and Curdlan, which were produced in our laboratory under the most suitable production conditions, to test their effects on the physical proprerties of soil taken from Toshka region at Aswan Governorate of Egypt. Data showed that soil porosity and MWDwet values have significant differences between all treatments and control under un-leaching processes. On the Other hand, in leaching processes, significant differences between all treatments and control were observed except in some treatments that using lower ratios of Pullulan and Curdlan biopolymers (i. e. 0.4, 0.6 and 0.8%). Generally, the beneficial order of enhancement of aggregate stability was obtained with Dextran, followed by Alginate, Xanthan, Pullulan, and Curdlan.
Show more [+] Less [-]DEVELOPMENT OF RAPD AND SSR MARKERS ASSOCIATED WITH OIL CONTENT IN FIVE PEANUT CULTIVARS Full text
2018
Ghada Samaha | M Rashed | A. Atta | M. Ahmed
The peanut (Arachis hypogaea L.) is an important oilseed crop in tropical and subtropical regions of the world.Oil content has an important quality trait for peanut. However, the progress in genetic improvement of oil content is slow. Therefore, identification of molecular markers for oil content trait is a great impact in molecular breeding. Nineteen RAPD and ten SSR primers were used to detect markers related to oil content in peanut. The five peanut cultivars were grown for two seasons (2013, 2014) in El-Nubaria, Al-Beheira Governorate, and Egypt. The results showed that, Gregory cultivar recorded the highest value of oil content, while Giza5 cultivar exhibited the lowest value of oil content in both seasons. The results indicated the presence of five positive and nine negative RAPD markers and two positive and one negative SSR markers that could be considered as reliable markers for oil content in peanut.
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