Calendulais one of the basic plants of ornamentals. It is used in various purposes as cut flowers and in gardens. They are rich with active compounds such as chlorophyll a and b, phenols, flavonoid, and carotenoids. The present study focused on mutation induction in order to improve the morphology of the plant which can increase the turnout of its market. In order to examine which mutagen will make the most noticeable and permanent improvement of the plant. For the mutagens, seeds were treated with three doses of gamma ray (2500, 5000, 7000Gy) and two chemical mutagens; colchicine and EMS; which were applied at concentrations of 1000, 3000, and 10000 ppm. With the aim to measure the plant improvement, we measured the plant morphology, its active compounds and protein profiling before and after treatments with both γ-radiation and chemical mutagen to see which one has the most effective imprint on the plant. The morphological parameters data showed the highest plant high by the two doses; gamma dose of 7000 Gy and EMS concentration 10000 ppm, while the lowest dose of colchicine (1000 ppm) made the most impact on the plant height. As for the highest number of leaves/plant, it was obtained at 5000 Gy and 10000 ppm of EMS, while 1000 ppm of colchicine had the same effect. But the number of flowers/plant was not affected by the gamma radiation and colchicine but increased significantly by 10000 ppm of EMS. Surprise, the flower diameter was not affected by EMS while decreased at 2500 Gy and 3000 ppm of colchicine. Considering the importance of flower shape, all treatments either gamma radiation or chemical mutagens showed noticeable changes. Whereas, the biochemical parameters measuring the active compounds, both Chl-a, Chl-b and carotenoids contents increased at 5000 Gy, while flavonoid increased at 2500 Gy. Although, all doses of gamma ray eliminated the phenols content. While the lowest used concentration of colchicine (1000 ppm) increased both of Chl-a, Chl-b, flavonoid and carotenoids, even though the 10000 ppm of colchicine increased the phenol. On the other hand, the highest concentration of EMS (10000 ppm) increased Chl-a and Chl-b while carotenoids, flavonoid and phenol increased at 3000 ppm of EMS. The protein-profile analysis showed fluctuation in the gene expression. The highest performance appeared at 7000 Gy of gamma treatment,1000 -3000 ppm of colchicine, while the same result was obtained by EMS at 3000 ppm.

- تبین من نتائج قیاس تحلیل مصفوفة السیاسات الزراعیة لمحصولی الدراسة أن معامل الحمایة الأسمی لمستلزمات الإنتاج قد بلغ حوإلی 0.915، 0.915 لکل من القمح والأرز خلال الفترة 2013- 2017، الأمر الذی یشیر إلی عدم وجود دعم لمستلزمات الإنتاج. - کما تبین أن معامل الحمایة الإسمی للنواتج من محصولی القمح والأرز علی الترتیب خلال فترة الدراسة قد بلغ حوإلی 0.771، 0.746، الأمر الذی یوضح إلی عدم وجود سیاسة إنتاجیة عادلة وذلک لقیام الدولة بفرض ضرائب مباشرة وغیر مباشرة علی المنتج وتقدیم دعم للمستهلک. - کما تبین من النتائج إلی وجود میزة نسبیة لمحاصیل الدراسة خلال نفس الفترة ، الأمر الذی یعنی إلی ان معامل المیزة النسبیة أقل من الواحد الصحیح. - کما تبین ان بمقارنة التقییم المإلی والتقییم الاقتصادی لکل من أجور الآلات، ثمن التقاوی، ثمن السماد الکیماوی، ثمن المبیدات، نجد أن التقییم المإلی یقل عن التقییم الاقتصادی لهذه البنود مما یدل على أنها مدعومة من جانب الدولة لمزارعی القمح. - کما تبین ان بمقارنة التقییم المإلی والاقتصادی لکل من إیجار الأرض، أجور الحیوانات، ثمن السماد البلدی، والمصاریف العمومیة یتبین أنهما متساویان مما یدل على عدم تدخل الدولة فی أسعار هذه البنود. - کما تبین ان بمقارنة التقییم المإلی والتقییم الاقتصادی لکل من أجور الآلات، ثمن التقاوی، ثمن السماد الکیماوی، ثمن المبیدات، نجد أن التقییم المإلی یقل عن التقییم الاقتصادی لهذه البنود مما یدل على أنها مدعومة من جانب الدولة لمزارعی الأرز. - کما تبین ان بمقارنة التقییم المإلی والاقتصادی لکل من إیجار الأرض، أجور الحیوانات، ثمن السماد البلدی، والمصاریف العمومیة یتبین أنهما متساویان مما یدل على عدم تدخل الدولة فی أسعار هذه البنود. - کما تبین من النتائج إلی أن قیمة معامل الحمایة الفعال لمحصول القمح بلغت حوإلی 0.756 خلال فترة الدراسة، مما یعنی أن محصول القمح لم یتمتع بحمایة حکومیة خلال تلک الفترة. - کما تبین من النتائج أن قیمة معامل الحمایة الفعال لمحصول الارز بلغت حوإلی 0.723 خلال فترة الدراسة، مما یعنی أن محصول الأرز لم یتمتع بحمایة حکومیة خلال تلک الفترة.

Land degradation is a global environmental issue, given the various negative impact on socio-economic and ecological implications. It leads to reduced production capacity in addition to soil erosion, physical /chemical /biological /economic land deterioration, and long-term loss (or degradation) of vegetation. When a severe deterioration in drought areas called the process of desertification i.e. arid, dry sub-humid and semi-arid areas. Desertification processes reduces the productivity of the soil and as a result effect on food stocks. The main objective of this study is integrating remote sensing data and a geographic information system (GIS) to evaluate the environmental sensitivity for desertification in Wadi El Natrun, Egypt based on the Mediterranean Desertification and Land Use (MEDALUS) approach. The collected soil data; from description of represented soil profiles and analysis of soil samples, in addition to climate, plant cover, and management data were considered for assessing the sensitivity of desertification. The obtained results showed that 10.4 % of Wadi El Natrun area is considered severe sensitivity to desertification as a result of alkalinity and salinity, while the moderately sensitive area occupies approximately 10.93 % of the study area. The low sensitive one exhibits 76.3 %. This area is described by high soil quality because of the study area is one of the new development areas which were not affected by the factors of desertification. It can be concluded that the desert extension of El-Beheira Governorate (i.e. Wadi El Rayan) is one of the areas that possess valuable land resources which should be considered for future land reclamation projects. Similar international studies are recommended to be achieved with the use of multi-criteria GIS modeling (i.e. MEDALUS) which considered all relevant factors in the form of thematic layers for easier implementation and assessments. Present study represents one of the initial attempts to use the MEDALUS model for desertification assessment in the desert extension of El-Beheira Governorate.

Laboratory experiments were carried out to clarify the impact of different types of natural and synthetic polymers on some hydrophysical properties (soil hydraulic parameters) of a sandy soil. Adding 0.5% (w/w) of each treatment to soil significantly increased water retention at saturation, field capacity, total available water and readily available water. This treatment decreased the value of inflection point on water retention curve as result of enhancing water behavior in the soil. The obtained results revealed that soil water storage significantly increased from 0.271 in control treatment (without adding polymer) up to 0.414 in treatment [T10] (Acrylic acid + Xanthan) while, field capacity increased significantly from 0.078 in control up to 0.242 of the abovementioned treatment (T10). Regarding the effects of polymer application in total available water and readily available water, data revealed significant increases in the above mentioned parameters. Total available water increased from 0.044 in control treatment up to 0.153 in T10 and readily available water increased from 0.057in control treatment up to 0.185 in T10. Concerning values of inflection point on soil water retention curve, the obtained results revealed that, inflection point of control treatment (1000 mbar) decreased to 590 mbar, as a result of adding a mixture of polymer acrylic acid + xanthan (T10 ).Soil depletion rate decreased as due to polymer application by 25% up to 75% depending on type of polymer and wether it was added individually or in combination with another polymer. This effect led to significant differences among control treatment (control) and the other treatments. Generally, there were significant effects of all polymers on the concerned hydrophyical properties of the studied sandy soil, i.e. storage capacity of soil water, depletion rate of soil water, soil field capacity , soil available water, readily available water and inflection point on the soil water retention curve. Acrylic acid recorded the best results concerning soil water behavior if it was added individually to the sandy soil (Treatment 2) or in combination with Xanthan (Treatment 10) or with Lignosulphonate (Treatment 11).

The materials used in this study were four commercial varieties of Egyptian cotton; two (Giza 86 and Giza 90) belonging to the long staple class and the others (Giza 88 and Giza 92) belonging to the extra-long staple category. Within each variety, nine lint cotton grades namely: Fully Good (FG), Good/Fully Good (G/FG), Good (G), Fully Good Fair/Good (FGF/G), Fully Good Fair (FGF), Good Fair/ Fully Good Fair (GF/FGF), Good Fair (GF), Fully Fair/Good Fair (FF/GF) and Fully Fair (FF) were used. Thus Fully Good (FG) is the top quality grade and the others are progressively lower; i.e. Fully Fair (FF) is the lowest grade. Fiber properties were measured by using the Cotton Classifying System Version-5 instrument (CCS-V5). Data collected for the following characteristics were: reflectance degree (Rd %), yellowness degree (+b), trash%, dust%, fiber fragments%, total trash%, No. of neps and Micronaire value. Mean squares due to all nine grades of long and extra-long staple cotton varieties in combined analysis were highly significant over seasons for all studied characters except yellowness (+b) and fiber fragments% in Giza 92. Highly significant mean performance values of four cotton varieties and nine lint grades for each variety for all studied characters, it became clear that there were significant genetically differences between studied varieties and fiber cotton lint grades within each variety. Gradually increased for yellowness degree, trash%, dust%, fiber fragments%, total trash% (trash, dust, fiber fragments) and number of neps, while gradually decreased for reflectance degree (Rd%) and micronaire value with significant level as transfer for all tested varieties from (FG) grade down to the (FF). All studied varieties showed highly significant negative correlation between fiber cotton grade with yellowness, trash, dust, total trash% and No. of neps, while highly significant positive correlation between fiber cotton grade with reflectance degree and micronaire value. Total trash% and micronaire value as well as reflectance degree and their interactions were the most contributing and influencing of fiber cotton grades. Also these properties and their joint effects are prevailing factors which affect the personal judgment of the grader at evaluating the cotton grade.

The problem of research is facing Egyptian exports of frozen vegetables in general, and the mixture of frozen vegetables in particular, with intense competition in foreign markets, which requires studying this problem and proposing appropriate solutions to it. Therefore, the research aimed to study means of developing and increasing agricultural exports of Egyptian frozen vegetables. The research focused on the exports of the Egyptian frozen vegetable mixture, as it was found that it ranked first among the total Egyptian exports of frozen vegetables during the period (2014-2018), where it represented about 70.1% of the total quantities. The research has reached some conclusions, including: The time trend equations for the quantity, value and price of Egyptian exports for both frozen vegetables and frozen vegetable mixtures were estimated during the period (2004-2018). It turned out that the ratio of the increase to the average in both the quantity and value of exports of frozen vegetables mixture is greater than that in the total frozen vegetables. By studying the geographical distribution, the most important importing countries for the Egyptian frozen vegetable mixture were identified during the period (2014-2018), namely Saudi Arabia, America, France. By studying the market share index of the most important importing markets for frozen vegetables mixture shows that Egypt occupies the first position in the list of countries exporting frozen vegetables mixtures in the Saudi market during the period (2010-2012) with an amount of exports estimated at about 4.9 thousand tons and a market share of about 72.2%. By studying The External of individual demand for the Egyptian frozen vegetable mixture in the Saudi market shows that an increase in the price of Egypt by 1% leads to a decrease in Egypt's exports to Saudi Arabia by 0.89%. A 1% decrease in India’s price leads to a decrease in Egypt’s exports by 0.89, meaning that there is a significant impact of price changes and that India is a competitor to Egypt within the Saudi market. The research recommended 1. Study the non-price competitive reasons, as Egypt has a competitive price advantage, yet its market share in the Saudi market is decreasing (it may be due to taste, packaging, export facilities, etc.). 2. The competitive advantage between Egypt and India is decreasing more than the other two competing countries (Spain, Belgium). 3. Focus on studying the reasons for India's increasing competitiveness of Egyptian exports. 4. There is an effect of price competition, especially with Mexican and Chinese exports, and it is recommended that this price competitive advantage be improved in favor of Egypt. 5. Italy is the largest competitor in the French market (it has a significant price impact on Egypt's exports, followed by Spain).

Bactrocera zonata (Saunders) flies are the dangerous insect pests of fruit, vegetables, and nuts over the world. This study provides the published information on toxicity, biochemical effects and some biological measurements of the peach fly, B. zonata by using some plant extracts (phytochemicals) namely Moringa oleifera oil, lemon peel oil and M. oleifera leaf extract, which would be more informative for publication facilitating related to integrated pest management (IPM) strategies of B. zonata. Effect of different concentrations of M. oleifera oil, lemon peel oil and M. oleifera leaf extract on biochemical effects (total proteins, total carbohydrates and acetylcholine esterase enzyme) and some biological aspects (pupal mortality, pupal duration, adult emergence, emerged deformed adult and malformation score) of the peach fly, B. zonata were studied. Results showed that M. oleifera oil is highly toxic to pupae of the peach fly, B. zonata with LC50 of 2.569, 2.773 and 2.370 ml/L and LC90 of 85.459, 92.171 and 18.314 ml/L in yellow, sandy and clay soils respectively. Whereas lemon peel oil come in the second position in order of toxicity and M. oleifera leaf extract was the least toxic compound. These results cleared that concentrations of total proteins, total carbohydrates and acetylcholine esterase enzyme activity markedly decreased in pupae of B. zonata after exposure to M. oleifera oil, lemon peel oil and M. oleifera leaf extract with highly significant effects compared with control. Obtained results showed that an inhibitory action of M. oleifera oil, lemon peel oil and M.oleifera leaf extract at all each of concentration levels when mixed with three types of soils namely, yellow soil, sandy soil and clay soil compared with untreated . These results suggest that three tested plant extracts has the probably to be used as a natural plant productions to control of the peach fly, B. zonata.

The frozen vegetable industry in Egypt is one of the most important industries that contribute to the provision of vegetables throughout the year to the consumer, and the Egyptian frozen vegetables value of exports of preserved food industries as the may reach $86.61 million on average for the period (2011-2015) with relative importance of 47.68%. The problem statement of research represent that the agricultural production in general and from vegetables and fruits in particular and the high percentage of lost and damaged, which threatens the development of Egyptian exports of these products if the export of Egyptian manufactured products does not keep pace with its international counterparts, Therefore, the research aimed to estimate the external demand for Egyptian frozen vegetables, and the determinants of that demand in the most important import markets of Egypt during the period (2007-2018). The research has reached some conclusions, including That Saudi Arabia, The United Arab Emirates, Jordan, the United States of America, Italy, and France are the most important countries importing Egyptian frozen vegetables, where the percentage of Egypt's exports of frozen vegetables to these countries amounted to about 57.1% of the total amount of Egyptian frozen vegetables exported during the period (2014-2018) Egypt's exports of frozen vegetables to these countries amounted to about 55.6% of the total value of Egyptian frozen vegetable exports for the same period. The high price elasticity of Egyptian frozen vegetables for the UAE market compared to the Saudi market with a value of about 1.5, 0.46 respectively, which means that the individual demand for frozen Egyptian vegetables for the Emirates is elastic, while the individual demand for frozen Egyptian vegetables for Saudi Arabia is inelastic. This reflects the importance of Egyptian frozen vegetables in the Saudi market and deal with them as a necessary commodity at a time when this importance is diminishing in the UAE market, where dealing with frozen Egyptian vegetables as a luxury goods. The same table also shows the increase cross elastisates of the Italian market by about 2.3 compared to the Saudi market, where the cross elasticity of those markets where 2.3, 1.3 respectively, which means that the degree of competition in the Italian market is higher than the rest of the markets. The italian market's income elasticity is also shown to be higher compared to the UAE and US market with a value of about 6.5, 2.2, 0.66 respectively. The methods of estimating the individual demand for Egyptian frozen vegetables using import statistics and using export statistics indicate different types of elastisates for the demand for Egyptian frozen vegetables for the Italian market and the Saudi and Emirati market from elastic demand to inelastic demand, which indicates the existence of Tri-Market Operation of Egyptian frozen vegetables are in these markets. The need to increase Egyptian efforts to revive the Egyptian frozen vegetable market in the UAE market as one of the most important export markets for these goods. Try to export directly to the countries which it is already exported by identifying the countries importing from Egypt to be an effective and real demand and not an indirect demand.

This study analyzed the determinants of household demand for food away from home (FAFH) in Riyadh, Saudi Arabia. Truncated generalized Poisson regression (TGPR) and truncated standard Poisson regression (TSPR) was applied to data from a random sample of 101 families. Maximum likelihood was used to obtain parameter estimates for these two models. TGPR was found to be optimal and appropriate for the analysis of demand data. Both income and number of household members had a significant positive effect, which is consistent with economic logic and reality in Saudi society. Price and taste also had positive effects on FAFH demand. Household income as an economic variable has a significant positive effect on the number of times that a household dines out during the month. When income increases by one thousand Saudi riyals, the demand will increase by 11%, which is consistent with economic logic. Household income as a quantitative economic variable and the number of household members as a quantitative demographic variable are the most important variables in household demand for FAFH. However, the effect of income is more significant than that of the number of household members. As this study investigated the impact of socio-economic and demographic factors on food away from home (FAFH) demand in Riyadh such as household income, number of household members, education level, prices and cleanness of restaurant, and taste of food. Still there are other variables could be used as potential variables could affect FAFH demand in Saudi Arabia in future research such as the change in number of working women which there is shift in the number of female workers recently. The future studies could look at the differences in socio-economic between consumers for different types of restaurants such as traditional, fast food, fish, and luxury restaurants. Due to the high demand for restaurant meals, officials should tighten the health control and close restaurants that do not comply with health requirements as well security and safety requirements. Restaurants should pay attention to improving the quality of meals and offering them at affordable prices to consumers.

Key Words: Media filter, Treated wastewater, Drip irrigation, Cotton Growth and Yield.INTRODUCTIONAccording to Ministry of Water Resources and Irrigation (MWIR), Egypt (2014) Agriculture expends a large amount of the obtainable water in Egypt, with its share exceeding 85% of the total demand for water. Utilizing treated wastewater represents a viable option. The study were carried out at Sarapium Forest, Ministry of Agriculture and Land Reclamation in “Sarapium”, Ismailia Governorate, Egypt, during 2018 and 2019 seasons to investigate the effect of media depth on the performance of different types of emitters for irrgating cotton (verity Giza 94) using treated wastewater. Also this study estimates the effect of using treated wastewater on the cotton growth, quantity and quality. The first experiment design for filtration performance was a split-plot with four replications. The main plots involved two media filtration depths (50 cm and 70 cm) and the sub-plots involved the time of operation (0, 25, 50, 75 and 100h). While the second experiment design for planting cotton was a split-plot with three replications. The main plots involved two plant distribution (Mutual and Opposite) and the sub-plots involved the three types of emitters namely: online 4 l/h compensative, online 4 l/h non-compensative and built- in 4 l/h-30cm non-compensative the distance between emitters were (30 cm).The results indicated that: Increasing media filtration depth from 50 to 70 cm has led to decrease the filtration flowrate with increasing pressure losses, biological oxygen demand (BOD5) and total suspended solids (TSS). The filtration flowrate decreased by increasing operation time from 0 to 100 but pressure losses, BOD5 and TSS was increased. Emitters performance of online compensative and built-in non-compensative were generally better than the online non-compensative under using wastewater quality and emitters performance decrease by increasing operation time from zero to 100 hours. Plants distribution significantly effect on growth and yield components of cotton. Planting cotton by mutual method gave the highest values of number of opened bolls per plant, seed cotton yield (Ken./fed.)