Two field experiments were conducted during the two successive seasons 2007/2008 and 2008/2009 at Sakha Agric. Res. Station, Kafr ElSheikh Governorate to study the effect of four harvesting dates i.e. 135, 145, 155 and 165 days after sowing on yield and its quality of six flax genotypes namely, Sakhal, Sakha 2, Sakha 3 and Giza 9 varieties and two new promising strains (strain 16 and strain 22). This study was laid out in a split-plot design, with four replications, the main plots were allocated to the six flax genotypes, whereas, the sub-plots contained the harvesting dates. The obtained results could be summarized as follow: Sakha 3 and Giza 9 varieties gave the highest means for technical length, fiber yield/plant as well as per fed., fiber length, fiber percentage, fiber strength, fiber fineness, germination % and crude protein %, whereas strain 22 (yellow seed) surpassed the other flax genotypes which produced the highest values for No. of seeds/plants, seed yield/fed., oil content and oil yield/fed. The harvest date of 155 days after sowing showed significant increases in stem diameter, straw yield/plant as well as per fed. fiber yield and its quality and crude protein % compared to the other three dates (135, 145 and 165 days after sowing). However, delayed harvesting date to 165 days after sowing recorded significant increase in technical length, upper branching zone length, seed yield and its related characters, germination %, seedling vigour, seed index, volume of 1000 seed,'oil content and oil yield/fed. The interactions among the studied factors had significant effects on straw yield/fed., No. of capsules/plants, fiber strength and germination % in the first season of study, while the characters of the upper branching zone length, seed yield/fed., oil yield/fed., fiber length and oil content in both seasons.

Fresh Bolti -fish (Tilpia nilotica) collected randomly from 9 different markets in Ismailia Governorate for evaluation the effect of grilled fish by the method used in grillrooms and houses on the concentration of pesticide residues found and the nutritive value. Results revealed that decrease in the estimated parameters i.e. moisture, crude protein, fat and ash by grilling, this decrease were 6.07, 2.63, 4.07 and 1.56%, respectively. On the contrary, carbohydrates behaved another behavior that there was an obvious increase ranged from 1.98% to 2.92%. Fresh and grilled fish were analyzed to detect 12 organochlorine (OC) and 7 synthetic pyrethroid (SP) pesticides with a mean level on a lipid basis. Gas Liquid Chromatography equipped with Electron Capture Detector GC-ECD was used to detect the contamination in the samples. The results showed that p,p'-DDE isomer was dominated over the other isomers in all analyzed fish samples, followed by q-isomer of hexachlorocyclohexane. The concentrations of OC residues were higher than SP pesticides in all fish muscles. Also, the fresh fish muscle recorded higher concentrations of the evaluated pesticides than the grilled one.

Two Field experiments were conducted during the two summer seasons of 2007 and 2008 at EL-Serw Agricultural Research Station, Damietta Governorate, Egypt to study the effect of the time removal of weeds on associated weeds, growth, yield and its components in direct seeded rice in salinity land. Echinochilon crus – galli, Echinochilon colunum, Cyperus difformis, Cyperus longus and Dicanthium annulatum  were the major weed species. Competition beyond 8 and 10 weeks from sowing and weed competition for the whole season caused drastic reduction in the panicle length, number of panicles / m2 weight of 1000grain and grain yield. Grain yield of rice increased significantly with the increase of the duration of weed-free period. Weed free for the whole season and weed free for 10,8,6 and 4 weeks from sowing and weed removal at 4 and 6 weeks from sowing gave good results in this respect in both seasons. The period during 4 and 6 weeks after sowing was found to be an important factor in crop/weed competition. Weed cause 20 to 95% yield loss. Direct seeded rice ecosystems are most vulnerable to weed competition. Weed free is the most common and predominant method of control and is cost-effective. In direct seeded rice emergence of weeds begins with the germinating rice seedlings. This leads to competition between weeds and crop right from the very early stages. The degree of yield losses would depend on the type of weeds and the stage and duration of their competition with the crop. It could be concluded that the critical period of weed competition in direct seeded rice among 4- 6 weeks from rice sowing, thus it's important to remove the weeds at this time.

In greenhouse and field experiments, conducted in two successive winter seasons 2007/2009 the effect of phosphorus fertilizer treatments on incidence of wilt disease  of lupine, chickpea and lentil, as well as yield and yield component  was studied. Application of Phosphorus fertilizer (100 and 200 kg/fed; as super phosphate (15.5% P2O5) before planting) caused a reduction in incidence and severity of wilt diseases on plants of the three legume crops either in greenhouse and field experiments. In field experiments, results indicated that the most effective treatment was phosphorus at 100 and 200 kg / fed) respectively, which reduced the wilt diseases. Phosphorus fertilizer significantly increased yield characters i.e., plant height, number of branches, number of pods, seeds yield / plant and weight of 100 seeds.

In an attempt for utilization of some common spices, cinnamon bark, clove bud and ginger rhi-zom are popular implementations because of their flavoring and antioxidative activity, which mainly comes from polyphenols. The aim of the study was to investigate the effect of spices or their essential oils compared with Diamicron30MR (60mg /100g diet) on the occurrence of oxidative stress in serum of induced diabetic rats by measuring the extent of oxidative damage as well as the status of the anti-oxidant defense system. Albino rats weighing 150 ± 5 g were injected with STZ (50 mg/kg) intraperi-toneally for induction of diabetes mellitus. Rats were divided into 17groups (each of 8 rats) of non-diabetic ,diabetic non-treated and diabetic treated rats with spice powders or their essential oils and mixtures. After 8 weeks, the diabetic rats fed on spices or their essential oils significantly decreased levels of blood glucose and significantly increased insulin level. The treatment also resulted in a sig-nificant improvement in lipid profile, liver functions and kidney functions. However, a significantly in-crement in the activities of glutathione peroxidase (GPH-Px) and concentration of glutathione (GSH) were observed in blood of diabetic rats treated with all of the essential oils. The treated groups showed a significant decrement in thiobarbituric acid reac-tive substances (TBARS) in serum. Since the study of induction of the redox enzymes is considered to be a reliable marker for evaluating the antiperoxi-dative efficacy of the spices, these findings sug-gest a possible antiperoxidative role derived from such essential oils. Treatment with spices or their essential oils reduces the hepatic, renal, pancreat-ic and cardiac histopathological abnormalities as-sociated with STZ – induced diabetes mellitus

A laboratory study was performed to evaluate the role of Molass using four levels (C=0, 10, 20 and 40 g kg-1) on the water transport function [namely, penetrability (l), sorptivity (S) and infiltration rate (i)] during transient flow in horizontal infiltration in Sandy loam soil incubated with Molass at 25 ± 2°C and 80% relative moisture content at 33 Kpa. For 60 days. Boltzmann transformation  was used to esitmate penetrability by fitting the wet front distance X vs. square root of time (t). Equation of Philip (1957)  was used to estimate sorptivity (S) by fitting cumulative   depth of water observed (I) vs. . Infiltration rate (i) was calculated using equation. The contact angle (a), soil surface free energy  were measured and calculated for all soil treatments. We also studied the effect of Molass on aggregate stability from the values of Mean Wight Diameter (MWD) and Geometric Mean Diameter (GMD). Results showed significant response and decrease in all study water transport functions [(l), (S) and (i)] with distance 30 cm of wetting front advance in end time with increasing the  levels of Molass from 0.0 to 40 g kg-1. Value of contact angle increased from 49.54 to 76.17, while the value of soil surface free energy decreased from 135.9 to 76.8 (m N m-1). The addition of Molass played very important role in aggregate stability according to the value of MWD and GMD

In the present study a suitable methodology is developed for estimating crop area by integrating remote sensing and GIS based on land survey approach. Area frame surveys are common approaches to gather land cover data. In contrast to mapping approaches, area frame sampling is a statistical method. Based on the visual observation of sample geo-referenced points, area estimates are computed and used as a valid generalization without studying the entire area under investigation. The approach has also the important advantage of not involving/disturbing the land owners and the farmers. The survey concerning the estimation of yield for the major crop will be carried out by cutting small samples in the field. The sample covers the whole Nile valley and the delta, the observed area is about 35000 km² and the distance from South to North is about 1000 km. Digital topographic maps 1:5000 and SPOT5 satellite Images was used, 2,5m resolution, Ortho-rectified (DTM). The survey used the WGS84, Universal Transverse Mercator 36 N, which parameter are given hereafter. Three thousands sites were visited during the winter crop survey, the sample could be constituted of a sub-set of these sites and one point will be designed in each of the selected sites. If this point is wheat, it will be included in the yield sample and visited at harvest time. The sub sample is defined as points of observation, 250m x 250m apart; there are 10 points of observation, which are called points. They are located in two lines East-West of 5 points. There suits of winter survey of Nile Delta and Nile valley is about 12591563 Feddan. The main results of the field survey were that the total cultivation area is almost 76609500 Feddan. The cultivation area is covered about 61% of the total Nile Delta and Nile valley. Field crop is the major area in the Nile valley and Nile Delta, its cover about 48% of the total area of the NileValley and Nile Delta. Furthermore, the field crops cover about 79% of the total cultivation area.

Gum Arabic (GA), a natural plant extract, is frequently used for the preparation and stabilization of flavor emulsions that is commonly used in soft drink and flavored beverage industry. This study aimed to reduce the amount of GA in some flavor model emulsions for cost effectiveness and studying the effect of that on the stability of these emulsions against gravitational separation during storage. Five flavor model emulsions were formulated using pure citral and cinnamic aldehyde and their mixtures at different weight ratios. Results indicated that a flavor/gum ratio 1:1 or 1:0.5 was not able to stabilize the particle size of all emulsions which is manifested by increase in size by many folds during storage. Similarly, four of the flavor model emulsions showed instability behavior (creaming or sedimentation) toward gravitational separation at the same flavor/gum ratios. However, only one flavor model emulsion out of the five models showed a high stability against gravitational separation at flavor/gum ratio 1:1 or even 1:0.5. That emulsion model was characterized by having a density matching (similarity) between its dispersed flavor phase and its continuous water phase. This indicates the possibility of formulating some flavor emulsions with reduced amounts of gum Arabic only by matching the density between the flavor phase and the continuous phase of the emulsion.

Four stages of maturity acerola fruits (Malpigh-ia glabra L.) namely green, mature green/yellow, pale red and ripe mature were analyzed in fresh and dried at 50˚C under vacuum. Also, fresh fruits were used to prepare jam and mixed with different ratios of fig fruit. Results showed that protein con-tent was gradually decreased from 1.12 for green to 0.82% for ripe mature stage of acerola, while, the titratable acidity was decreased gradually with increasing the maturity stage while, the pH and soluble solids were gradually increased. The high-est percentages of reducing and total sugars were observed for pale red stage and the lowest were showed in green stage. Also, ascorbic acid was higher in green/yellow mature while in pale red and ripe stages were lower. Phenolic compounds were analyzed by HPLC in acerola fruit. The detected phenolic compounds were gallic, protocatechuic, catchein, catechol, chlorogenic, caffeic, syringic, ellagic, ferrulic, coumarine and cinnamic in both fresh and dried acerola. The green/yellow maturity of acerola extract recorded the highest percent of total antioxidant activity (74.46 %) while the lowest total antioxidant activity was observed in the ripe mature acerola (20.75%). Sensory evaluation of jam prepared from acerola and mixed with fig 1:1 recorded the highest scores compared to other prepared jams. Meanwhile, the content of ascorbic acid and total antioxidant activity were increased by increasing the percent of acerola fruit

The current period has seen considerable interest in issues of poverty in the world. And every State can draw the correct and appropriate policies to combat poverty if it can identify the most important determinants (causes) of poverty and know how to evaluate these parameters in line with its potential. Therefore, this research tries to contribute to identifying the determinants of poverty in Egypt and most Arabian countries. For this was the problem of searching high unemployment and low level of services and lack of availability of a significant sector of the population of Egypt and most Arabian countries. The objective of this search is to try to identify the most important determinants of poverty in Arabian countries and the estimate the proportion of a specific effect of each of these determinants in the presence of differences in the incidence of poverty among them, and the possibilities of reducing poverty in these countries. Deliberately search to include the study of all the Arab states, including oil and non-oil. The study estimated poverty function by using some of the World Development Indicators contained in the report of the World Bank for the years 2007/2008, 2000/2001, the indicators are: proportion of population below national poverty line (dependent variable), and many of other indicators, which is believed it may affect the incidence of poverty in any country (independent variables), The study used cross-sectional time series data and the double logarithmic ordinary least squares OLS were used. The results of statistical analysis of the determinants of poverty is clear that the lack of services and facilities of state is the biggest factor influencing the increase in poverty in Arab countries. For Egypt, it was shown that the rate of poverty in Egypt more than their counterparts in the record level assumed by 13.58%, and approximately 8.20% of this difference in the poverty rate between Egypt and the standard record is due in the first place low ratio of value-added of industry from GDP, hence the clear trend State to pursue a policy focus on industry and trying to promote this sector so that the State of employment in this sector and thereby reduce unemployment and reduce poverty as well as state and to attract surplus labor and underemployment, seasonal in the agriculture sector, and should also increase the share of spending on education budget to combat poverty. The study then proceeded to try to reduce the poverty rate of study and upon which it became clear that the first solution, and fast to reduce poverty in less Arab countries is to try to influence countries to boost spending on education (% of GDP) and value added of industry (% of GDP). As for ways to reduce the poverty rate in poor Arab countries explained the study, said the first solution, and fast to reduce poverty is to raise the foreign direct investment (U.S. $ million) (% of GDP) and expenditure on education (% of GDP). It is also for ways to reduce the poverty rate of the