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ENVIRONMENTAL IMPACT OF VETERINARY THERAPEUTIC AGENTS ON GROWTH AND BIOCHEMICAL COMPOSITION OF ERUCA SATIVA PLANT Texte intégral
2018
Fatmalzhra Awad | R. Attallah | M. Shams Eldin | Shreen Ahmed
Steroid hormones (H) and tetracycline antibiotics (T) are considered two important classes of veterinary therapeutic agents administrated to livestock for different purposes that have been detected for many environmental matrices in wide concentrations range. The effect of progesterone (Pro), androstenedione (4-AD), androstadienedione (1,4-AD) and tetracycline antibiotics namely oxytetracycline (OTC), chlortetracycline (CTC) and tetracycline (TC) on arugula plants (Eruca sativa) growth and biochemical composition was investigated. Compost and potassium permanganate were applied to minimizing the negative effect of veterinary therapeutic agentson plant. A pot experiment was conducted at the greenhouse of Agricultural Research Center (ARC) at Giza Governorate, Egypt. Soil fortified with 2 mg kg-1 of H and Ttarget compounds individually and combined was used to study their effect on chlorophyll, proline, catalase (CAT), and peroxidase (POD) activities as antioxidant enzyme and plant growth. Under this experiment conditions; the obtained results showed that veterinary therapeutic agents caused increased the content of proline, however chlorophyll content was increased as a result of H application and decreased with T application. Both CAT and POD activities were increased, especially with the combined mixture application. Potassium permanganate or compost can be used for remediation procedures in veterinary therapeutic agentscontaminated soils.
Afficher plus [+] Moins [-]AN ECONOMIC STUDY TO ESTIMATE THE SUPPLY RESPONSE OF WHEAT CROP IN PORT SAID GOVERNORATE Texte intégral
2018
Shimaa El-Badrawy | A. El-Sabaa | S. Makled
The wheat crop in Egypt is a major source of food for a large population. There is a deficit in bridging the food gap. Egypt imports wheat with its domestic production. Egypt currently suffers from 50% self-sufficiency in wheat. The Port Said Governorate is considered one of the governorates of Egypt in which the Peace Canal contributes to the increase of land and Egypt from the wheat importing countries, which means that the economics of this crop have not been expanded in Zarattha in such a way that makes a significant contribution to filling the deficit and achieving self-sufficiency rates. The study aims to study the general time trends of the main changes associated with the estimation of the supply response of the wheat crop, which includes both the cultivated area of the crop, the agricultural price and the net yield of the crop. It also aims to identify the most important changes affecting the cultivated area, In agriculture The study was based on data from the Department of Agricultural Statistics in the Directorate of Agriculture in Port Said Governorate and the Agricultural Statistics Bulletin issued by the Central Administration of Agricultural Economics and some researches related to the subject of the study. The study used some descriptive and quantitative statistical methods such as simple regression method and multiple regression method to estimate the supply response functions of wheat yield in Port Said Governorate in the linear image. The results of the study on estimating general time equations for some of the economic indicators related to estimating the supply response of wheat yield during the period 2000-2016 in the cultivated area, the agricultural price and the net yield of the studied crop showed that there is an increasing general trend In both cultivated area and farm price and net return, 727, 24.82, 288.18 respectively and the significance of the model was established at the level of 0.05. What is for the results of the restoration of the supply of accounting? The study of the full linear model was overseen by the models for the response of the wheat yield in Port Said Governorate where it is clear from the full linear model that includes all the explanatory variables referred to that the model is significant. It is worth mentioning the significance of all the variables studied, (T-1), T-1 wheat price, T-1 wheat net yield (T-1), T-1 net, yield formula from wheat to clover (T-1) ), The stability of price policies, and the percentage of wheat / rice yield (T-1) 1% of the changes occurring in the area cultivated with wheat to the previous factors of the Immunization Heif order . As shown in the previous equation, there is a positive relationship between six factors and area cultivated wheat in the year, meaning that the increase of cultivated area of the year following the cultivation by 50 acres. The increase in the agricultural price was an incentive for farmers to increase the cultivated area of the crop studied in the year The net yield from wheat may lead to an increase in the cultivated area by 3.54 feddans, and the price ratio between the wheat crop / barley crop in the previous year was estimated at an area of about 91.56 feddans and the net yield from wheat to barley. Cultivated by 26848 feddans, a factor of inverse relation with the cultivated area of agricultural engineering, this factor may lead to a decrease in the cultivated area of wheat 8282.2 feddans on the cultivated area in the wheat province of Port Said Governorate. The elasticity of the supply response to the variable of crop area (X1) in the previous year, agriculture price (X2) in the previous year, (X4) net weight/ net wheat/barley yield in the previous year and (X6) previous 0.65, 2.8, 1.7, 1.58, respectively. If there is a change in the capacity of 1% in the area cultivated with wheat there is a change in the area cultivated in the previous year by 0.65%, and there is a change in the previous years farm price increased by 2.8% and wheat net/net barley yield has change by 1.7% and the wheat/ barley price ratio has change by 1.58%, respectively. The results showed that the model for the wheat yield response were the logarithmic model. This is evident from the value of (F) (R2).
Afficher plus [+] Moins [-]RESIDUES OF IMIDACLOPRID AND MYCOLBUTANIL IN/ON GRAPE AND SOIL UNDER FIELD CONDITIONS Texte intégral
2018
M. Abd El-Megeed | K. Mohamed | M. Hammad | Naglaa Ebeed | Shimaa Mohamed
Persistence Vs degradation behavior of insecticide imidacloprid (35% SC) and fungicide myclobutanil (24% EC) in/on grape (leaves and fruits) and surrounding soil under canopy were investigated under field conditions. Leaves, fruits and soil samples were collected at 2 hours to 21 days after application at the recommended rate. QuEChERS method was used for extraction and clean-up and analyzed using HPLC and GC for imidacloprid and myclobutanil, respectively .The initial residue deposits, degradation percentages and/or, the parameters (RL50 and RL90) and Pre Harvest Intervals (PHIs) of the targeted pesticides were the criteria of concern. Results revealed that, grape leaves retained higher initial amounts than fruits by about 5.0 7 and 1.34 times for imidacloprid and myclobutanil, respectively. As for RL50, RL90 and PHIs values, imidacloprid showed 4.12 ,13.42 and 21.95 days and 5.13 ,13.41 and 11.96 days on grape leaves and fruit, respectively. The corresponding calculated values were 4.71, 9.38 and 16.31days and 1.97, 9.14 and 14.90 days for myclobutanil on the same targeted samples, respectively. In addition, the grape fruits could be consumed safely after 12 and 15 days of treatment with imidacloprid and myclobutanil, respectively. On the other hand , results indicated that the residue half life (RL50) values for the same targeted pesticides in soil were 11.56 and 15.74 days, respectively. In general, myclobutanil residues in soil recorded higher persistence levels than higher imidacloprid and on the contrary it showed less persistence in/on grape leaves and fruits.
Afficher plus [+] Moins [-]MOLECULAR CHARACTERIZATION OF SOME SEEDED TYPE DATE PALM TREES IN EGYPT Texte intégral
2018
A. Abu-Afifeh | Neima Al-Sanosy | Heba Ibrahim | Kh Soliman
In the present study, molecular fingerprinting among selected ten seeded type date palm trees growing at Al Dakhlah Oasis, New Valley Governorate in Egypt was carried out, in this approach 10 RAPD and 10 ISSR primers were used. In RAPD markers, primers 1, 3, 4, and 6 showed the highest level of polymorphism with number of polymorphic amplicons of 100%. While primers 7 and 8 resulted in the lowest number of polymorphic bands with polymorphism level of 62% and 63%, respectively. The similarity between Acsad-Dakhla 6 and 7 (0.76%) was observed as maximum similarity. While, Acsad-Dakhla 5 exhibited a minimum degree of similarity with all the seeded type date palm trees ranging from 33% to 49%. According to ISSR, highest polymorphism was generated by primers 8 and 9 (100%). While primers 4 and 2 produced the lowest polymorphism 50% and 55.6%, respectively. The highest similarity was observed between Acsad-Dakhla 8 and Acsad- Dakhla 9. Acsad-Dakhla 5 and Acsad-Dakhla 7 showed close relationship but Acsad-Dakhla 10 was at distant from all the seeded type date palm trees and did not lie in any subcluster. In combined analysis, the similarity between Acsad-Dakhla 6 and 7 were similar to Acsad-Dakhla 9 and 10 showed maximum similarity (85%). While, Acsad- Dakhla 2 and 5 exhibited a minimum degree of similarity with all the seeded type date palm trees (47%). A high genetic diversity among selected ten seeded type date palm trees was present.
Afficher plus [+] Moins [-]ELECTRONIC MARKETING AND ECONOMIC EMPOWERMENT OF RURAL WOMEN Texte intégral
2018
Zeinab Abd-Elrahman | Heba Mohamed
The Research aimed to identify the types of products marketed by the respondents electronically, to identify the marketing methods used by the respondents, and what is preferred, identify the contribution of e-marketing in establishing women's own project, to identify the advantages and disadvantages of e-marketing from the point of view of the respondents, to identify the level of economic empowerment of rural women who market their products electronically, to identify the effect of Independent variables on The dependent variable( economic empowerment), and to identify the activities and extension efforts in the field of electronic marketing. The research was based on the social survey approach by selecting a randomly sample of the respondents in Qalyubiya Governorate (90) respondents, (30) respondents with Qalyubiya Facebook groups and (60) respondents were selected through (Open Day) (is a day of rural women show electronic products through Facebook pages). Data were collected during June, July and August 2017 and using frequencies and percentages, Pearson's simple correlation coefficient, Step-Wise analysis to analyze research data. The most important result are as the follows 1- Most of the products that are marketed electronically are clothing (40%), Beauty Products (26.7%), Household products (7.8%), household food (7.8%), indicating Products not related to rural products and its products indicates a change in some purchasing habits in the countryside, which can be traced to electronic marketing. 2-(41.1%) of the respondents marketed their products through social networking sites, while (53.9%) of the sample used the usual marketing methods (such as selling in shops, markets) and the use of social networking sites in marketing. Half of the sample (45.6%) prefer marketing through social networking pages, (23.3%) prefer normal marketing, and (31.1%) prefer to use both methods. 3-The results showed that e-marketing contributed to the establishment of women in their own project. About (55.6%) of respondents said that emarketing was easy to market their products, and (51.1%) of respondents said that emarketing encouraged them to do their own project. 4-The most advantages of electronic marketing from the point of view of the respondents is to interact at any time, and get the largest number of customers, and marketing outside the village, and determine the opinion of the customer easily, easy to spread products and easy access to customers through social networking pages, and it has some disadvantages, the most important of which is the difficulty of inspecting the product to ensure the quality (14.3%). It requires follow-up and continuity to the personal page or the group on which the products are displayed (16.4%), the seasonality of the sale, the absence of a fixed salary (6.7%), and (8.4%) of the respondents mentioned that there are no disad vantages for electronic marketing from their point of view. 5- More than half of the sample (58.9%) is in the average empowerment category, while (37.8%) are in the low category, (3.3%) are in the high empowerment category. 6- The results of the study showed that there are four independent variables of the independent variables, "e-marketing, training, family support, the judgment of the respondents on their project", all of which explain about 41.2% of the variation in the level of economic empowerment of the researchers. 7- All the participants were not exposed to any activities or extension efforts by the extension system.
Afficher plus [+] Moins [-]DEVELOPMENT AND THERMAL PERFORMANCE ANALYSIS EVALUATION OF A TRUNCATED PYRAMID SOLAR COOKER Texte intégral
2018
Fatma Shaaban, | M. Mostafa | M. Abdel-Salam | M. Atia
Study aimed to develop and evaluate the thermal performance of truncated pyramid solar cooker viz non-modified and modified. Tests have been carried out in Department of Agricultural Engineering, Faculty of Agriculture, Ain Shams University, Shubra El-Kheima, Egypt (Latitude 30o11’ N, Longitude 31o24’ E). The solar cookers were not loaded, and loaded with 0.5, 1.0 and 2.0 liter of water. The modified truncated pyramid was filled with different quantities of rice. The thermal performance was evaluated by using first figure of Merit, second figure of Merit and energy efficiency. textural properties of rice and biscuits and cost analysis were measured. The absorber plate temperature of the modified was 51. 8 % higher than the absorber plate temperature of the non-modified cooker. The calculated values of first figure of Merit was 0.102 and 0.08 oC.m2/W with modified and non-modified truncated pyramid cooker types, respectively. The value of second figure of Merit was 0.239 and 0.523 for modified and non-modified truncated pyramid cooker, respectively.
Afficher plus [+] Moins [-]FUNCTIONAL, RHEOLOGICAL AND SENSORY CHARACTERISTICS OF DEFATTED-HYDROLYZED RICE BRAN AS FAT REPLACERS IN PREPARED BISCUIT Texte intégral
2018
A. Madkour | Magda Allam | A. Abdel Fattah | Y. Kishk
Defatted rice bran (DRB) and hydrolyzed defatted rice bran (DRBT) were prepared from rice bran meal (RBM). Proximate composition, oil and water binding capacities, emulsifying and foaming characteristics were determined. Effect of different substitution of DRB and DRBT as Fat replacers in biscuit on the farenograph parameters and sensory characteristics were also evaluated. The total protein, ash and crude fiber were significantly (P≤0.05) increased in each of DRB and DRBT compared to RBM. Defatted rice bran protein hydrolyzed improved the DRBT water, oil absorption index being 1.7. Used each of DRB or DRBT gave high emulsifying activity and stability indices in casein model system. The same trend was observed with foam activity and stability indices in egg albumin system. farenogram parameters significant (P≤0.05) affected by using DRB and DRBT. The prepared biscuits samples had high sensory scores with 10 to 50 % DRB and DRBT attributes and recorded non-significant (P≤0.05) differences compared to control sample.
Afficher plus [+] Moins [-]SOWING DATE AND IRRIGATION EFFECTS ON PRODUCTIVITY AND WATER USE EFFICIENCY IN SUNFLOWER Texte intégral
2018
M. Shahin | M. El-Bially | H. Saudy | I. El-Metwally
Abiotic stresses represent a major impediment to crop productivity, especially in arid regions. Thus, over two years of 2014 and 2015, a field experiment was undertaken at El Nubaria region, Egypt to assess the productivity and water use efficiency (WUE) of sunflower as affected by planting dates (April 21, May 21, and June 21) and irrigation levels (ET100%, ET85% and ET70%,). Results clarified that leaf chlorophyll a content was higher by sowing in May than in either April or June sowings, while leaf carotenoides of plant sown in May or June surpassed those sown in April. The minimal value of proline was obtained with sowing in May. Sowing in May increased plant height by 52.2 and 22.3 as well as LAI by 19.3 and 73.1% than sowing in April and June, respectively. The reductions in seed yield, oil yield and WUE amounted to 10.5 and 12.8, 13.7 and 18.3 as well as 11.8 and 9.8 % with April and June sowings, respectively, compared to May sowing. ET100% showed superiority over than ET85% and ET70% in improving sunflower yields and its attributes, but WUE did not affect. Sunflower sown in May and irrigated with ET100% gave the maximum values of seed yield and its attributes and WUE surpassing other interaction treatments. In June, WUE value increased under severe water deficit i.e. ET70% comparing to moderately water–stressed (ET85%) or well–watered conditions (ET100%).
Afficher plus [+] Moins [-]PHYTOTOXICITY AND EFFECTIVENESS OF SOME HERBICIDES IN WHEAT PLANTATIONS Texte intégral
2018
Hoda Elattar | S. Dahroug | W. El-Sayed | Rensa Hashiesh
Weeds are severely competition with wheat crop and it highly reduces crop yield. So, the present study was conducted on wheat cultivations during two seasons 2013/2014 and 2014/2015 to evaluated phytotoxicity effects of some herbicides on wheat (Triticum aestivum). Effectiveness of these herbicides on weed control in wheat crop and yield evaluation and quality of wheat was evaluated as well after treatment by herbicides. The field experiment was carried out in agricultural experimental station of Etay El-barod, El-Beheira Governorate, using randomized complete block design (RCBD) with four replicates for each treatment and unweeded check, having two rates of both herbicide recommended and double recommended rates (R, 2R). Treatments comprised of post-emergence application of pyroxsulam, flumetsulam+ florasulam, tribenuron-methyl, diclofop-methyl and tralkoxydim. The results indicated an increase in wheat plant height with all herbicides used compared to unweeded check. Tribenuron-methyl and flumetsulam + florasulam treatments did not cause any visible phytotoxicity, while pyroxsulam, diclofop-methyl and tralkoxydim treatments recorded a low indexes of phytotoxicity on wheat plants which disappeared completely after 8 weeks from post application, compared to unweeded check. Results also, indicated that all herbicide treatments decreased weed density. Herbicide treatments achieved the highest weed control expressed in lowest fresh weight after 56 days from application for broadleaved, grassy and total weeds. Herbicide treatments caused an excellent increase in yield attributes (spike length, biological and grain yield) and yield quality (weight of 1000 grains, total carbohydrates and crude protein) compared to unweeded check in both seasons. The maximum grain yield was recorded at two trials by pyroxsulam compared to unweeded check.
Afficher plus [+] Moins [-]METABOLIC CHANGES OF CUCUMBER PLANTS DUE TO TWO CMV EGYPTIAN ISOLATES Texte intégral
2018
A.S. Farahat | A.A. El-Morsi | H.E. Soweha | A.R. Sofy | E.E. Refaey
Cucumber production exposed to huge losses in Egypt and worldwide due to infection with Cucumber mosaic Cucumovirus (CMV). The current study focus on the impact of two Egyptian CMV isolates on metabolic and oxidative activities in cucumber plants. Two CMV isolates was obtained from cucurbitaceous crops and confirmed by DASELISA. Inoculated cucumber plants by infectious crude sap with two CMV isolates showed difference in external symptoms. The metabolic and biochemical components of cucumber plants were affected with two CMV isolates. The present study provided that, CMV infection caused a significant reduction in both photopigments and biochemical components while bioactive components (proline and phenol) and oxidative enzymes (POX, SOD, PPO and CAT) were increased significantly compared healthy ones. It was found that cucumberCMV isolate was more effective in metabolic and biochemical than Squash-CMV isolate.
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