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EFFECT OF FOLIAR APPLICATION WITH ALGAE AND MORINGA LEAVES EXTRACTS ON VEGETATIVE GROWTH, LEAF MINERAL CONTENTS, YIELD AND CHEMICAL FRUIT QUALITY OF PICUAL OLIVE TREES
2019
A. Hassan | N. Abd-Alhamid | Rawheya Aly | H. Hassan
This study was carried out during 2017 and 2018 seasons on adult Picual olive cv. (8 years old) in a private orchard located at Cairo Ismailia Desert Road, (about 80 Km from Cairo), Ismailia Governorate, Egypt. Trees are grown in sandy soil, under drip irrigation system, uniform in shape and received the common horticultural practices, therefore, this work aims to study the effect of spraying different concentrations and dates spray of algae and moringa leaf extract (MLE) for tow times on the vegetative growth, leaf mineral contents, yield and fruit chemical properties of Picual olive trees. Results indicated that all different spraying treatments of algae and moringa extract at different spraying dates had a positive effect on vegetative growth, leaf mineral contents, fruit set, yield and fruit chemical properties in comparison with the control. Treatments of algae extract at 0.4% + moringa leaves extract at 2% and algae extract at 0.4% + moringa leaves extract at 4% were the most effective treatments to increase vegetative growth, improve leaf mineral content, fruit set, yield and oil content. Thus, these treatments can be recommended for commercial use under similar conditions
Показать больше [+] Меньше [-]ANALYSIS OF EGYPTIAN AGRICULTURAL FOREIGN TRADE WITH THE COUNTRIES OF THE EURO - ASIAN UNION
2019
M. Salem | A. Omairi | A. Abdelmaqsoud | Salwa Abd ELMonem
The study aims at identifying the analysis of the Egyptian agricultural foreign trade with the countries of the Euro-Asian Union. The study problem , its objectives and the research method Where identified in the study. Where , there is a lack of information on the expected results or the role that the proposed free trade agreement between Egypt and the Euro-Asian Union could play and the requirements for maximizing the positive results and minimizing the negative consequences if this agreement is signed. Therefore, the research aims to identify the positive and negative results on the Egyptian economy under the proposed agreement, which contributes to reducing the negatives and supporting the positive factors to achieve effective decision-making. The study included four chapters. First, identifying the stages of economic integration. The second chapter was studying the economic interrelationships between the Russian Federation, Egypt, Belarus, Armenia and Kazakhstan, and the third chapter was the identification of commodity trade relations between Egypt and Eurasian countries during the period 2001-2017 through exports and imports between Egypt and the countries of the Euro-Asian Union The most important trading partner of Egypt among these countries is the Russian Federation, where the value of trade exchange between the two countries in 2017 to more than 4 billion dollars, including 3.6 billion imports to Egypt and 0.5 billion exports from Egypt to Russia, The fourth chapter was the use of trade indicators to reveal trade opportunities with the countries of the Euro-Asian Customs Union. Three indicators were used: 1- Conditions of trade, 2- Agricultural trade compatibility, 3- Price competitiveness, The tendency of the terms of exchange for Egypt in many commodities of vegetables and fruits in the studied markets and the most important Russian market and it shows the agricultural trade compatibility of these commodities and the advantage of some Egyptian commodities such as oranges, potatoes and grapes have a significant competitive advantage in the Russian market with great importance. The research included several recommendations, including the promotion of intraagricultural trade between Egypt and the EuroAsian countries through preferential agreements, especially with Russia, Armenia and Kazakhstan.
Показать больше [+] Меньше [-]EFFECT OF SUBSTITUTION OF WHEAT FLOUR WITH OAT AND BARLEY MEAL ON THE FUNCTIONAL, RHEOLOGICAL AND SENSORY PROPERTIES OF TARHANA
2019
Salma M. | I. Rizk | Nagwa Rasmy | Samar Mahdy
Addition of whole cereal grains’ meal as a source of dietary fibers for the development of tarhana as a value-added functional food was the aim of this study. The effect of substituting wheat flour 72% (WF) with different ratios of whole wheat meal (WWM), oat flakes meal (OFM), whole barley meal (WBM) and mixed-cereal meal (OFM& WBM) on functional, rheological, color and sensorial properties of tarhana samples was determined. Whole cereal grains’ meal showed higher contents of protein, lipids, ash, crude fibers and total phenolic compounds in comparison to wheat flour (72%). pH values of tarhana samples were reduced from 5.22-5.89 to 4.81-5.09 after 72 h. of fermentation. The flow behavior index of tarhana soup samples ranged between 0.11-0.19, indicating the pseudoplasticity of tarhana samples. The higher value of consistency coefficient was recorded for OFM 50% sample followed by WWM 100% sample. Fermentation loss values of tarhana samples ranged between 7.12% for OFM 25% sample and 12.61% for mixed-cereal 50% sample. Substitution of WF in tarhana formulations with whole cereal grains’ meal reduced the yellowness of tarhana samples. Addition of different whole cereal grains’ meal significantly (p<0.05) improved water and oil absorption capacity of tarhana samples. Also, partial substitution of WF with OFM and mixed-cereal meal at ratio of 50% in tarhana recipe has significantly (p<0.05) increased foaming capacity and stability of the final product. The highest values of sensory parameters were observed in Tarhana soups prepared with OFM at ratios of 25& 50%, mixed-cereal meal at 50% and the control sample. According to the results of this study, it is possible to partially substitute wheat flour with whole cereal grains’ meal in tarhana production in attempt to have a product combining the nutritional value of whole cereal grains and the health benefits of lactic acid bacteria.
Показать больше [+] Меньше [-]BIOLOGICAL ASPECTS AND LIFE TABLE PARAMETERS OF THE EGGPLANT STEM BORER, Euzophera osseatella Treit. (Lep.: Pyralidae)
2019
Samar Abbas | A. Hekal | L. Youssef
Biological aspects and life table parameters of the eggplant stem borer, Euzophera osseatella Treit. (Lep.: Pyralidae) were studied under laboratory conditions at 27℃ and 65% R.H. The egg, larval and pupal stages of E. osseatella lasted 5.8, 33.2 and 12.9 days, respectively. The mortality percentage in the corresponding stages reached 14, 37 and 13%, respectively. The sex ratio in E. osseatella was in favour of females (1:1.1). The preoviposition, oviposition and postoviposition periods of the pest averaged 1.8, 3.1 and 1.2 days, respectively. The daily and total numbers of eggs/female of E. osseatella were 46.6 and 147.2, respectively. The male and female of the insect lived 4.4 and 6.2 days, respectively. The mean generation time (T) of E. osseatella averaged 54.22 days. The net reproductive rate (Ro), the intrinsic rate of increase (rm) and the finite rate of increase (exp.rm/ λ) in the pest were 28.09, 0.062 and 1.063, respectively. The generation doubling time (Dt) of E. osseatella reached 14.01 days. The fecundity curve (Mx) of E. osseatella showed three peaks of 14.14, 20.14 and 12.32 female progeny/female/day at the female age (X) of 50.5, 61.5 and 63.5 days, respectively. The survival curve (Lx) of the insect revealed that most death of females occurred after an extended oviposition period to compensate failure of most immature stages to reach maturity (64%).
Показать больше [+] Меньше [-]ISOLATION AND IDENTIFICATION OF TRICHODERMA SPECIES FROM SOILS FOR USING AGAINST SOME SOILBORNE FUNGAL PATHOGENS
2019
Nada Abd El-Aziz | A. Abd El-Razek | S. Ibrahem
Hydrolytic enzyme producing Trichoderma species have long been recognized as an agent for controlling plant diseases caused by various phytopathogenic fungi. A study was done to characterize four isolates of Trichoderma isolated from the rhizosphere of different crop plants to characterize and identify certain biocontrol related enzymes (β1,3-glucanase and chitinase). Morphological and molecular characterize action of antagonistic ability of Trichoderma species were studied. On the basis of morphological and culture characteristics, the Trichoderma isolates were identified as T. harizanum (1 isolate), T. viride (3 isolates). These isolates were tested against plant pathogens (Rhizoctonia solani, Pythium and Fusarium oxysporum). The best isolate producing chitinase (overproduction) was T. harizanum from (160 to 0.64) mg/ml. On the other hand the best isolate gave over production β-1; 3-glucanase over production was T. viride from (2250 to 2.20 mg/ml)
Показать больше [+] Меньше [-]DETERMINANTS OF GLOBAL DEMAND ON EGYPTIAN DRIED ONION
2019
H. Shaheen | M. Rihan | A. Abdel Maqsoud
The drying industry for vegetable crops, especially the onion crop, is one of the most important food industries that achieve quality and safety of food in addition to open the doors of export. Germany is the main importer of Egyptian dried onions by 28.8% of the average total Egyptian onion exports with an average of 3448 tons as an average for the study period (2013-2017) .Followed by the Netherlands in the list of the most important importers of Egyptian dried onions with an average quantity of about 2816 tons, representing 23.5% of the average Egyptian exports of dried onions. Japan accounted for 9.2% of Egypt's total exports of dried onions with an average of 819 tons, followed by Greece, Belgium, Britain and Brazil respectively. The most important variables effecting on Egyptian dried onion were import price of Egyptian dried onion in the foreign markets and export pric es of the competing countries, as well as the average per capita income of importing countries, as well as their population. It was found that the study of external demand functions for the Egyptian dried onions were low price elasticity of demand (inelastic demand) for Japan. where, the increase in the price of Egypt's dried onion exports to Japan by 1% led to a decrease in the quantity of exports by 0.51% ,While the demand of the United Kingdom was elasticity equal with unit , where, the increase in the price of Egypt's dried onion exports to the Kingdom by 1% leads to a decrease in the quantity of exports by the same percentage, while it was found that the demand for Egyptian exports of dried onions is flexible for the countries of the Netherlands - Brazil Belgium, where the price of Egypt exports of dried onions by Ratio of 1% leads to a decline in the amount of exported quantity by 1.36%, 1.7%, 1.8% respectively
Показать больше [+] Меньше [-]CONSUMER’S ATTITUDES TOWARDS THE DEMAND FOR IRRADIATED FOOD IN CAIRO GOVERNORATE
2019
Suzan Amin | M. Zayed | M. Shehata | E. El-Gameel
Currently, the international community focus on the problem of food security and nutrition to achieve the goals in the United Nations 2030 Sustainable Development Plan, in particular the second objective of sustainable development, which concern eradication of hunger, saving food security and be improved nutrition, as well promotion of sustainable agriculture (The official website of the United Nations). The field study aims to provide an indication of the expected volume of demand for irradiated food in the Egyptian market and estimate degree of approval, due to measuring of consumer’s attitudes. The process of food irradiation gives a competitive advantage in the markets, through achievement of important role in preserving food and agricultural products, an addition protect them from spoilage. The felid Study was based on consumer demand for irradiated food in Cairo Governorate, as the largest governorate in terms of population intensity, representing about 10.06% of the total population of the Republic (Central Agency for Public Mobilization and Statistics, 2017). A survey was conducted on consumers who frequented the hypermarket between two areas, one located in a high income area (1st Settlement) and the other located in a low income area (Shoubra). The results of the survey showed that the percentage of those who approved the purchase of irradiated food amounted to about 67%, while the percentage of those who undecided and rejected was estimated at about 12% 21% respectively. The highest percentage of weighted average value was approved for the axis of the nutritional value of food and quality, which amounted to about 81.33%, while the approval rate for the axis of environmental specifications has reached 74.66% only. The results indicate that the factors affecting on consumers behavior for the purchase of irradiated food are not mainly due to the price specifications of the commodity but to the nutritional value and quality, health and marketing specifications. In addition, the results showed that relationship wasn’t statistically significant between the variables of the age group, gender, social status and all the axes of the irradiated food specification, but relationship was found statistically significant between the variable of the region (high income and low income) and the total specifications. The study suggests which explains the importance of directing marketing strategies appropriate to the consumer groups with a relatively low level of education and low incomes, because increasing the awareness of the benefits of radiation Processed of food, will increase the total economic benefit for them, it’s most important of maintain quality and safety of food for long shelf life. The results also showed the relative importance of information, that effect on demand for irradiated food in the Egyptian market, it’s considered high relatively where was estimated at 87%. Furthermore, the results explained an important role of the major media as television, which has most Watched by consumers by 69%, followed it the Internet by 29%. The dry foods may be provided when the commercial application and marketing of irradiated products in the Egyptian market would be started, This is due to agree with most consumer’s attitude, which selected by 62% of the study sample. Based on the above, the important role becomes clear of felid studies and marketing research in the Egyptian market, to identify the actual wants of consumer, which represented to obtain safe, healthy and high quality of food, how optimization using of food irradiation technology could be met consumer's demand on Specification of food products required in the Egyptian commercial markets. The study recommends of put a marketing strategy for irradiated food, which mainly dependent on providing specifications of these foods, such as nutritional value, quality, health and marketing specifications, which are important economic axes, it had highly compatible with the preference and consumer’s behavior towards purchasing. This is one of the most important factors affecting on demand according to economic theory. This ensures the marketing process’s effectiveness for these foods before supplied to the market. In addition to achieve the expected economic returns at the national level by saved food security or at the individual level by satisfying the consumer's wants to obtain safe food with high quality and comparatively long shelf life.
Показать больше [+] Меньше [-]MEDICINAL COMPOUNDS OF QUERCUS BARK AND RELATED AGRICULTURAL AND PHARMACEUTICAL APPLICATIONS
2019
H. Elansary | A. Szopa | P Kubica | Eman Mahmoud | Halina Ekiert | K. Yessoufou | T. Zin El-Abedin
Identifying phenols in ornamental trees may provide sources of natural compounds that have applications in the agricultural and pharmaceutical industries. In this study, we profiled phenolic acids in the bark of Quercus sp. using HPLC-DAD. Q. robur showed high ellagic acid (in Q. robur). Q. macrocarpa had high caffeic acid. All species showed antibacterial and antifungal activities. P. aeruginosa was the most sensitive species for bark extracts. The antifungal activities were high against A. flavus. The study revealed new natural sources of phenolic acids that have antimicrobial activities with agricultural and pharmaceutical applications.
Показать больше [+] Меньше [-]A COMPARATIVE STUDY OF THE ECONOMICS OF POTATO CROP PRODUCTION CULTIVATED IN ORGANIC METHOD AND TRADITIONAL METHOD IN EGYPT
2019
Kh. Hamuda | S. Makled | Iman Qadous | Kh. Abd El Mowla
EFFECT OF DIFFERENT GROUP SIZE ON THE PRODUCTIVE PERFORMANCE OF GROWING RABBITS
2019
Esraa Ali | I. El-Wardany | A. Ahmed | E. Abdel-Kafy | Hoda Shabaan
This study was carried out to investigate the effect of different group’s size on productive performance of growing rabbits. A total number of 108 APRI weaning rabbits, their average initial body weight were 560±10g. Animals were assigned to two groups: The 1st group housed by 4 rabbits in cage 60 cm2, while the 2nd group housed by 8 rabbits in cage 120 cm2. During the experimental period live body weight(g), daily feed intake(g) and mortality rate (%) were recorded and daily body weight gain(g) and feed conversion ratio(FCR) were calculated at 5, 8, 10 and 12 weeks of age. After the end of the experiment (12 wk) 36 rabbits were randomly taken and slaughtered to calculate the measure carcass traits. These include total giblet (g), cervix part (%), front quarters (%), intermediate part (%), hind quarter (%) and the dressing weight. Also the economical efficiency (EE%) was calculated. Results indicated that: the average live body weight (LBW), daily weight gain (DWG) and daily feed intake (DFI) were not significantly influenced by different group size. The best DWG values were recorded for the group 2 (8 rabbits/ cage), by around 2.5% during the whole fatting period (5-12 wks). Daily feed intake was lower in group 2 than group 1 by around 6.20%, 2.00%, 0.31% and 2.83% at 5, 8, 10 and 12 weeks of age, respectively. Data revealed significant improvements in FCR for rabbits in group2 (P<0.05) than group1 for the period 5-8 and during the whole growing period 512 weeks. The mortality rate was lower in group 2 than in group 1. The best dressing weight value was recorded for the group 2 by around 9.2%.The economical efficiency (EE %) was improved in group 2. It is concluded that, increasing number of rabbits to 8 rabbits in cage could decrease the mortality %, increase the dressing weight that also lead to increase the economical efficiency.
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