Pub Date : 2021-01-01DOI: 10.21608/ZJAR.2021.165676
Akram M. Abdulrahman, Jawhar Hamalaw Khalid, Z. Majeed, A. Taib
From a studied to collect data for temperature degrees during 1973 until 2019 there is clear evidence that show climate change is happening in our region. The collected data showed that the average annual temperature rate has raised by almost 1.3°C, the average of warmest year for this period was recorded in 2010 and it was 21.55°C. In 2016, average temperature degree was high 20.3°C as the global worm rising the lowest temperature in this period was 16.2°C recorded in 1992. Since 1973 until 1985 the average temperature was 18.39°C and since 1986 until 1998 the average temperature raised to 18.79°C, then since 1999 until 2010 the average temperature raised again to 19.93°C but in period 2011 to 2018 the average temperature raised to 20.09°C. The difference between warmest monthly average temperatures and the coldest month of the year or annual range in 1988 was the highest and valued 31.9°C while in year 1973 was the lowest (19.6°C) but the rate for the period 1973 to 2018 was 27.9°C. The absolute annual temperature range or differences between the maximum absolute temperature and the minimum absolute temperature during a year was obvious like in 1973 was the highest (53°C) and in 1987 was the lowest (35°C). Diurnal temperature variation or the daily difference between the maximum and minimum temperatures was limited in winter months almost recorded 6 9°C, but in summer months the ranges is bigger almost reported 15 18°C. Over these years specially from (2008 -2019) soils that affected with plant pathogenic nematodes increased dramatically in the study area witch was within 10 km 2 because of rising temperatures degrees and need to use greenhouses instead of open field cultivation, these greenhouses numbers influencing on agroecosystem structure for a long terms. From this investigation, and to control plant pathogenic nematodes in the infested greenhouses, farmers used kinds of chemical pesticides that cause damages to the soils and the yields as well as changing agroecosystem structure. Agroecosystem structure for the study area has been changed relatively because of increasing the numbers of greenhouses that got almost 7000 greenhouse causing imbalance in agroecosystem by using a huge amount of water (125 m 3 /greenhouse).
{"title":"INFLUENCE OF TEMPERATURES RISE OVER 48-YEARS ON SULAYMANIYAH AGROECOSYSTEM STRUCTURE AND NEMATODES DISTRIBUTION USING GIS APPLICATION","authors":"Akram M. Abdulrahman, Jawhar Hamalaw Khalid, Z. Majeed, A. Taib","doi":"10.21608/ZJAR.2021.165676","DOIUrl":"https://doi.org/10.21608/ZJAR.2021.165676","url":null,"abstract":"From a studied to collect data for temperature degrees during 1973 until 2019 there is clear evidence that show climate change is happening in our region. The collected data showed that the average annual temperature rate has raised by almost 1.3°C, the average of warmest year for this period was recorded in 2010 and it was 21.55°C. In 2016, average temperature degree was high 20.3°C as the global worm rising the lowest temperature in this period was 16.2°C recorded in 1992. Since 1973 until 1985 the average temperature was 18.39°C and since 1986 until 1998 the average temperature raised to 18.79°C, then since 1999 until 2010 the average temperature raised again to 19.93°C but in period 2011 to 2018 the average temperature raised to 20.09°C. The difference between warmest monthly average temperatures and the coldest month of the year or annual range in 1988 was the highest and valued 31.9°C while in year 1973 was the lowest (19.6°C) but the rate for the period 1973 to 2018 was 27.9°C. The absolute annual temperature range or differences between the maximum absolute temperature and the minimum absolute temperature during a year was obvious like in 1973 was the highest (53°C) and in 1987 was the lowest (35°C). Diurnal temperature variation or the daily difference between the maximum and minimum temperatures was limited in winter months almost recorded 6 9°C, but in summer months the ranges is bigger almost reported 15 18°C. Over these years specially from (2008 -2019) soils that affected with plant pathogenic nematodes increased dramatically in the study area witch was within 10 km 2 because of rising temperatures degrees and need to use greenhouses instead of open field cultivation, these greenhouses numbers influencing on agroecosystem structure for a long terms. From this investigation, and to control plant pathogenic nematodes in the infested greenhouses, farmers used kinds of chemical pesticides that cause damages to the soils and the yields as well as changing agroecosystem structure. Agroecosystem structure for the study area has been changed relatively because of increasing the numbers of greenhouses that got almost 7000 greenhouse causing imbalance in agroecosystem by using a huge amount of water (125 m 3 /greenhouse).","PeriodicalId":14975,"journal":{"name":"Journal of Agricultural Research","volume":"48 1","pages":"111-122"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68566199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.21608/ZJAR.2021.165686
A. Abdelhakim, E. Awad, I. Mohamed, E. El-Sheikh
It is well known that the natural cellulose has low ionic exchange properties, due to its characterization by a small number of carboxylic groups. Incorporation of different functional groups can promote its ionic exchange capacity. In this work, modification of orange peel by treating with sodium hydroxide and amination, phosphoration and sulfonation. The different ion exchanger has been used to increase the ion exchange capacity of such materials, by developing their swelling properties and decreasing their lignin content. A maximum uranium uptake of 726 mg/g was observed at the obtained optimum conditions using modified resin (ion exchange No. VII). The latter (0.841: 0.420) mm size orange peels were modified using a mixture of sulfonic and phosphoric acids. Ion exchange No. VII was used as the case study to remove uranium and associated elements from Sinai wells water. The main purpose of this work is to prepare different resins from the Egyptian plant waste. Orange peels were chosen because they are popular and widespread plant wastes in Egypt.
{"title":"REMOVAL OF URANIUM AND ASSOCIATED ELEMENTS FROM SINAI WELLS WATER USING THE DRIED AND CHEMICALLY MODIFIED ORANGE PEELS","authors":"A. Abdelhakim, E. Awad, I. Mohamed, E. El-Sheikh","doi":"10.21608/ZJAR.2021.165686","DOIUrl":"https://doi.org/10.21608/ZJAR.2021.165686","url":null,"abstract":"It is well known that the natural cellulose has low ionic exchange properties, due to its characterization by a small number of carboxylic groups. Incorporation of different functional groups can promote its ionic exchange capacity. In this work, modification of orange peel by treating with sodium hydroxide and amination, phosphoration and sulfonation. The different ion exchanger has been used to increase the ion exchange capacity of such materials, by developing their swelling properties and decreasing their lignin content. A maximum uranium uptake of 726 mg/g was observed at the obtained optimum conditions using modified resin (ion exchange No. VII). The latter (0.841: 0.420) mm size orange peels were modified using a mixture of sulfonic and phosphoric acids. Ion exchange No. VII was used as the case study to remove uranium and associated elements from Sinai wells water. The main purpose of this work is to prepare different resins from the Egyptian plant waste. Orange peels were chosen because they are popular and widespread plant wastes in Egypt.","PeriodicalId":14975,"journal":{"name":"Journal of Agricultural Research","volume":"48 1","pages":"137-159"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68565939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.21608/ZJAR.2021.165661
N. A. El-Aziz, Z. Mohamed, A. Mohsen, A. Elsheakh
In this study, mustard and neem oils trad name saif oil (0.03% EC) were tested for their insecticidal activity against 2 nd and 4 th instar larvae of the cotton leafworm, Spodoptera littoralis. Also, the biochemical changes were evaluated to compare the physiological effects between the two tested oils. Toxicity results revealed that mustard oil has low toxicity versus the neem oil with LC50 values of 7.99 and 20.30 when tested against 2 nd and 4 th larval instars, respectively. The toxicity index were 0.0024% and 0.0014 against 2 nd and 4 th instar larvae, respectively. A similar trend was recorded for both neem and mustard oils in the biochemical changes of protein and transaminase enzymes activities [aspartate aminotransferase (AST), alanine aminotransferase (ALT)] which decrease in both tested 2 nd and 4 th instar larvae at all times intervals (1, 3, 5 and 7 days). In addition, the fluctuated effects were shown on lipids levels and amylase, invertase and trehalase activities.
{"title":"TOXICITY AND BIOCHEMICAL EFFECTS OF MUSTARD AND NEEM OILS ON SECOND AND FOURTH LARVAL INSTARS OF COTTON LEAFWORM, Spodoptera littoralis (BOISD)","authors":"N. A. El-Aziz, Z. Mohamed, A. Mohsen, A. Elsheakh","doi":"10.21608/ZJAR.2021.165661","DOIUrl":"https://doi.org/10.21608/ZJAR.2021.165661","url":null,"abstract":"In this study, mustard and neem oils trad name saif oil (0.03% EC) were tested for their insecticidal activity against 2 nd and 4 th instar larvae of the cotton leafworm, Spodoptera littoralis. Also, the biochemical changes were evaluated to compare the physiological effects between the two tested oils. Toxicity results revealed that mustard oil has low toxicity versus the neem oil with LC50 values of 7.99 and 20.30 when tested against 2 nd and 4 th larval instars, respectively. The toxicity index were 0.0024% and 0.0014 against 2 nd and 4 th instar larvae, respectively. A similar trend was recorded for both neem and mustard oils in the biochemical changes of protein and transaminase enzymes activities [aspartate aminotransferase (AST), alanine aminotransferase (ALT)] which decrease in both tested 2 nd and 4 th instar larvae at all times intervals (1, 3, 5 and 7 days). In addition, the fluctuated effects were shown on lipids levels and amylase, invertase and trehalase activities.","PeriodicalId":14975,"journal":{"name":"Journal of Agricultural Research","volume":"126 1","pages":"55-64"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68566306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.21608/ZJAR.2021.165711
مها ترکي, عبدا لرحيم الشحات البحطيطي
{"title":"تحليل أثر سعر الفائدة علي المتغيرات الاقتصادية الکلية في ماليزيا","authors":"مها ترکي, عبدا لرحيم الشحات البحطيطي","doi":"10.21608/ZJAR.2021.165711","DOIUrl":"https://doi.org/10.21608/ZJAR.2021.165711","url":null,"abstract":"","PeriodicalId":14975,"journal":{"name":"Journal of Agricultural Research","volume":"48 1","pages":"263-281"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68566827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-31DOI: 10.18174/odjar.v6i0.17915
R. Manderscheid, M. Erbs, J. Kellner, L. Hüther, P. Kraft, H. Wieser, H. Weigel
This paper contains data from a two year FACE experiment with maize (Zea mays L., cv. ‘Romario’) investigating the interaction of two CO2 concentrations (378, 550 ppm) and two levels of water supply (sufficient: wet, limited: dry) on crop growth and plant composition. In the second year soil cover was also varied to test whether mitigation of evaporation by straw mulch increases the CO2 effect on water use efficiency. The datasets assembled herein contain data on weather, management, soil condition, soil moisture, phenology, dry weights and N concentrations of the plant (leaves, stems, cobs), green leaf area index, stem reserves, final yield and quality-related traits in the total plant and grains. Most of the experimental findings have already been published in scientific journals. Moreover, the data have been used in two crop modeling studies, and simulation results (on soil moisture, transpiration, evaporation and biomass) of one of these studies are also shown here.
{"title":"Maize response to free air CO2 enrichment under ample and restricted water supply: field experimental data and output of a process-based hydrological plant growth model","authors":"R. Manderscheid, M. Erbs, J. Kellner, L. Hüther, P. Kraft, H. Wieser, H. Weigel","doi":"10.18174/odjar.v6i0.17915","DOIUrl":"https://doi.org/10.18174/odjar.v6i0.17915","url":null,"abstract":"This paper contains data from a two year FACE experiment with maize (Zea mays L., cv. ‘Romario’) investigating the interaction of two CO2 concentrations (378, 550 ppm) and two levels of water supply (sufficient: wet, limited: dry) on crop growth and plant composition. In the second year soil cover was also varied to test whether mitigation of evaporation by straw mulch increases the CO2 effect on water use efficiency. The datasets assembled herein contain data on weather, management, soil condition, soil moisture, phenology, dry weights and N concentrations of the plant (leaves, stems, cobs), green leaf area index, stem reserves, final yield and quality-related traits in the total plant and grains. Most of the experimental findings have already been published in scientific journals. Moreover, the data have been used in two crop modeling studies, and simulation results (on soil moisture, transpiration, evaporation and biomass) of one of these studies are also shown here.","PeriodicalId":14975,"journal":{"name":"Journal of Agricultural Research","volume":"6 1","pages":"34-38"},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43346844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-31DOI: 10.21608/zjar.2020.110329
B. Salem
This study was carried out to evaluate the chemical and phenolic contents of some by- products tomato pomace powders (TPP), mango seeds kernel powder (MSKP), and pomegranate peels powder (PPP), Also the effect of substitution of wheat flour with 2.5, 5.0, 7.5 and 10% of (TPP), (MSKP), and (PPP) on chemical, phenolic contents and sensory characteristics of biscuits was studied. Results showed that, wheat flour showed higher moisture and total carbohydrate contents. Tomato pomace powder showed high crude protein, and crude fiber contents. Mango seeds kernel powder had the highest lipids content and pomegranate peels powder had the highest ash and crude fiber contents. For total phenolic and flavonoid content, TPP contain the highest total phenolic and flavonoid content followed by PPP and finally MSKP. Also, the partial replacement of wheat flour with TPP, MSKP and PPP increased chemical composition percentage (moisture, crude protein, lipids, ash, and crude fiber), minerals content (i.e., K, Ca, Mg, Na, Mn, Fe, and Zn) and dietary fiber content (i.e., total, soluble and insoluble dietary fibers) of biscuit samples. However, total carbohydrates were decreased in parallel with increasing the level of substitution compared with control biscuit samples. Biscuit treatments containing TPP, MSKP and PPP had recorded the same minerals dietary fiber content. The partial replacement of wheat flour with TPP, MSKP and PPP increased total phenolic and flavonoid contents of biscuit samples compared with control sample in parallel with increasing the level of substitution. Biscuit treatments containing TPP had the highest total phenolic and flavonoid contents followed by PPP and finally MSKP treatments. The sensory evaluation characters, taste, colour, appearance, crispness, and overall acceptability, have no significant difference between the control sample and biscuit samples which substituted with 2.5, 5, and 7.5% of MSKP and TPP.
{"title":"USE OF TOMATO POMACE, MANGO SEEDS KERNEL AND POMEGRANATE PEELS POWDERS FOR THE PRODUCTION OF FUNCTIONAL BISCUITS","authors":"B. Salem","doi":"10.21608/zjar.2020.110329","DOIUrl":"https://doi.org/10.21608/zjar.2020.110329","url":null,"abstract":"This study was carried out to evaluate the chemical and phenolic contents of some by- products tomato pomace powders (TPP), mango seeds kernel powder (MSKP), and pomegranate peels powder (PPP), Also the effect of substitution of wheat flour with 2.5, 5.0, 7.5 and 10% of (TPP), (MSKP), and (PPP) on chemical, phenolic contents and sensory characteristics of biscuits was studied. Results showed that, wheat flour showed higher moisture and total carbohydrate contents. Tomato pomace powder showed high crude protein, and crude fiber contents. Mango seeds kernel powder had the highest lipids content and pomegranate peels powder had the highest ash and crude fiber contents. For total phenolic and flavonoid content, TPP contain the highest total phenolic and flavonoid content followed by PPP and finally MSKP. Also, the partial replacement of wheat flour with TPP, MSKP and PPP increased chemical composition percentage (moisture, crude protein, lipids, ash, and crude fiber), minerals content (i.e., K, Ca, Mg, Na, Mn, Fe, and Zn) and dietary fiber content (i.e., total, soluble and insoluble dietary fibers) of biscuit samples. However, total carbohydrates were decreased in parallel with increasing the level of substitution compared with control biscuit samples. Biscuit treatments containing TPP, MSKP and PPP had recorded the same minerals dietary fiber content. The partial replacement of wheat flour with TPP, MSKP and PPP increased total phenolic and flavonoid contents of biscuit samples compared with control sample in parallel with increasing the level of substitution. Biscuit treatments containing TPP had the highest total phenolic and flavonoid contents followed by PPP and finally MSKP treatments. The sensory evaluation characters, taste, colour, appearance, crispness, and overall acceptability, have no significant difference between the control sample and biscuit samples which substituted with 2.5, 5, and 7.5% of MSKP and TPP.","PeriodicalId":14975,"journal":{"name":"Journal of Agricultural Research","volume":"47 1","pages":"1011-1023"},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47017644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-31DOI: 10.21608/zjar.2020.110339
H. Mohamed
First: The geographical distribution of imports of corn oil in Egypt: The (free) alternative: in which imported quantities of corn oil are left to be distributed in a free way to various countries according to the least expensive and under the restriction of the capacity of those exporting countries, in addition to the volume of Egyptian import capacity of corn oil from all countries and the import capacity does not exceed the average. The annual amount of imports from it in the average period (2014-2017). With regard to the free and private alternative to leaving the quantities of imported corn oil distributed freely in different countries according to the lowest prices and according to the exporting capacity of the countries, it was found that the quantities imported from corn oil were distributed in two countries, Saudi Arabia and the United States of America, with an estimated rate of 68.81% and 31.19% on the sequence is out of the total imported quantities, and this alternative has achieved an estimated cost of approximately 43721.35 thousand dollars, meaning that it saves about 4290.57 thousand dollars, which represents 8.94% of the current model. It is clear from the study that the (free) alternative to distributing imports of corn oil is the best proposed alternative, because this alternative has achieved an estimated cost of approximately 43721.35 thousand dollars, meaning that it saves about 4290.57 thousand dollars, which represents about 8.94%. Second: The geographical distribution of sunflower oil imports in Egypt. Alternative (European Union Countries Market): It clarifies that the quantity of Egypt's imports of sunflower oil from all countries of the European Union market is not less than the average amount that Egypt imported from each country during the study period, so that it does not exceed the average of its export capacity and not more than average of the total amount of Egypt's imports during the average period (2014-2017). It is clear from the study that an alternative (European Union countries) to distribute sunflower oil imports is the best proposed alternative, because this alternative has achieved an estimated cost of about 413076.06 thousand dollars, meaning that it saves about 17191.86 thousand dollars, representing about 3.99%. The study recommended the following proposals: Preparing sound model plans for the geographical redistribution of Egyptian imports of agricultural crops in general and oil crops in particular in the form that is in favor of the Egyptian balance of payments. Redistributing Egyptian imports of corn oil and sunflower oil from other countries, commensurate with the export capacity of these countries, that could be achieved by reducing the proceeds of imports under restrictions, and it is clear from the study that the first (free) alternative to distributing imports of corn oil is the best alternative and the exporting power of the exporting countries. This alternative achieved an estimated cost o
{"title":"ECONOMIC RETURN TO RE-ORIENTATE IMPORTS OF CORN AND SUNFLOWER OILS IN EGYPT","authors":"H. Mohamed","doi":"10.21608/zjar.2020.110339","DOIUrl":"https://doi.org/10.21608/zjar.2020.110339","url":null,"abstract":"First: The geographical distribution of imports of corn oil in Egypt: The (free) alternative: in which imported quantities of corn oil are left to be distributed in a free way to various countries according to the least expensive and under the restriction of the capacity of those exporting countries, in addition to the volume of Egyptian import capacity of corn oil from all countries and the import capacity does not exceed the average. The annual amount of imports from it in the average period (2014-2017). With regard to the free and private alternative to leaving the quantities of imported corn oil distributed freely in different countries according to the lowest prices and according to the exporting capacity of the countries, it was found that the quantities imported from corn oil were distributed in two countries, Saudi Arabia and the United States of America, with an estimated rate of 68.81% and 31.19% on the sequence is out of the total imported quantities, and this alternative has achieved an estimated cost of approximately 43721.35 thousand dollars, meaning that it saves about 4290.57 thousand dollars, which represents 8.94% of the current model. It is clear from the study that the (free) alternative to distributing imports of corn oil is the best proposed alternative, because this alternative has achieved an estimated cost of approximately 43721.35 thousand dollars, meaning that it saves about 4290.57 thousand dollars, which represents about 8.94%. Second: The geographical distribution of sunflower oil imports in Egypt. Alternative (European Union Countries Market): It clarifies that the quantity of Egypt's imports of sunflower oil from all countries of the European Union market is not less than the average amount that Egypt imported from each country during the study period, so that it does not exceed the average of its export capacity and not more than average of the total amount of Egypt's imports during the average period (2014-2017). It is clear from the study that an alternative (European Union countries) to distribute sunflower oil imports is the best proposed alternative, because this alternative has achieved an estimated cost of about 413076.06 thousand dollars, meaning that it saves about 17191.86 thousand dollars, representing about 3.99%. The study recommended the following proposals: Preparing sound model plans for the geographical redistribution of Egyptian imports of agricultural crops in general and oil crops in particular in the form that is in favor of the Egyptian balance of payments. Redistributing Egyptian imports of corn oil and sunflower oil from other countries, commensurate with the export capacity of these countries, that could be achieved by reducing the proceeds of imports under restrictions, and it is clear from the study that the first (free) alternative to distributing imports of corn oil is the best alternative and the exporting power of the exporting countries. This alternative achieved an estimated cost o","PeriodicalId":14975,"journal":{"name":"Journal of Agricultural Research","volume":"47 1","pages":"1125-1137"},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45878668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-31DOI: 10.21608/zjar.2020.110333
لزم خلیل محمد الصفتى
استهدف البحث التعرف على مستوى تمسک المبحوثين بکل قيمة من القيم المجتمعية المدروسة وهى (برالوالدين, الاحترام, النظافة الجمال, الطموح, القيادية, تحمل المسؤلية, العمل التطوعى, حرية الرأى والتعبير, الولاء والانتماء للوطن, الاستثمار والادخار واحترام الوقت), وکذلک إجمالى القيم المجتمعية المدروسة, والتعرف على العوامل المرتبطة بالقيم المجتمعية المدروسة, وکذا تحديد الفروق بين متوسطات درجة تمسک المبحوثين بالقيم المجتمعية المدروسة, وأخيرا تحديد الإسهام النسبى للمتغيرات المستقلة المتضمنة فى الدراسة فى تفسير التباين الحادث فى درجة تمسک المبحوثين بالقيم المجتمعية المدروسة. وقد أجرى البحث على عينة قوامها 360 مبحوثا من أرباب الأسر الريفية بقرية نواج بمرکز طنطا بمحافظة الغربية، وجمعت البيانات باستخدام استمارة استبيان بالمقابلة الشخصية، وتم تفريغها وتحليلها إحصائيا باستخدام جداول الحصر العددي والنسب المئوية، ومعامل الارتباط البسيط لبيرسون, ومعامل الانحدار البسيط والمتعدد, واختبار ت, واختبار ف, وکانت أبرز النتائج ما يلى: أن ما يزيد عن نصف المبحوثين (58.9%) وقعوا فى الفئة المرتفعة لمستوى التمسک بالقيم المجتمعية إجمالا, کما تبين وجود علاقة ارتباطية متعددة بين المتغيرات المستقلة المدروسة مجتمعة وبين درجة تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا, وأن هذه المتغيرات مجتمعة تفسر نحو 16.1%من التباين الحادث فى درجة تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا, کذلک تبين أن أکثر المتغيرات إسهاما فى تفسير التباين الحادث فى درجة تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا, مرتبة حسب أهميتها هى: الحالة العملية, السن وعدد سنوات تعليم المبحوث, وأن هذه المتغيرات تفسر نحو 14.9% من التباين الحادث فى درجة تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا, وتبين وجود فروق معنوية عند المستوى الاحتمالى 0.01 فى متوسطات تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا وفقا للنوع, الحالة العملية, نوع الحيازة الزراعية والحالة المهنية لصالح المبحوثين الذکور, والمبحوثين الذين يعملون, والمبحوثين الذين يمتلکون حيازات زراعية, والمبحوثين الذين يعملون موظفين على التوالى.
{"title":"محــــددات القیــــم المجتمعیــــة بقــــریـــة نـــــواج – محــافـظـــة الغـــربیـــة","authors":"لزم خلیل محمد الصفتى","doi":"10.21608/zjar.2020.110333","DOIUrl":"https://doi.org/10.21608/zjar.2020.110333","url":null,"abstract":"استهدف البحث التعرف على مستوى تمسک المبحوثين بکل قيمة من القيم المجتمعية المدروسة وهى (برالوالدين, الاحترام, النظافة الجمال, الطموح, القيادية, تحمل المسؤلية, العمل التطوعى, حرية الرأى والتعبير, الولاء والانتماء للوطن, الاستثمار والادخار واحترام الوقت), وکذلک إجمالى القيم المجتمعية المدروسة, والتعرف على العوامل المرتبطة بالقيم المجتمعية المدروسة, وکذا تحديد الفروق بين متوسطات درجة تمسک المبحوثين بالقيم المجتمعية المدروسة, وأخيرا تحديد الإسهام النسبى للمتغيرات المستقلة المتضمنة فى الدراسة فى تفسير التباين الحادث فى درجة تمسک المبحوثين بالقيم المجتمعية المدروسة. وقد أجرى البحث على عينة قوامها 360 مبحوثا من أرباب الأسر الريفية بقرية نواج بمرکز طنطا بمحافظة الغربية، وجمعت البيانات باستخدام استمارة استبيان بالمقابلة الشخصية، وتم تفريغها وتحليلها إحصائيا باستخدام جداول الحصر العددي والنسب المئوية، ومعامل الارتباط البسيط لبيرسون, ومعامل الانحدار البسيط والمتعدد, واختبار ت, واختبار ف, وکانت أبرز النتائج ما يلى: أن ما يزيد عن نصف المبحوثين (58.9%) وقعوا فى الفئة المرتفعة لمستوى التمسک بالقيم المجتمعية إجمالا, کما تبين وجود علاقة ارتباطية متعددة بين المتغيرات المستقلة المدروسة مجتمعة وبين درجة تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا, وأن هذه المتغيرات مجتمعة تفسر نحو 16.1%من التباين الحادث فى درجة تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا, کذلک تبين أن أکثر المتغيرات إسهاما فى تفسير التباين الحادث فى درجة تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا, مرتبة حسب أهميتها هى: الحالة العملية, السن وعدد سنوات تعليم المبحوث, وأن هذه المتغيرات تفسر نحو 14.9% من التباين الحادث فى درجة تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا, وتبين وجود فروق معنوية عند المستوى الاحتمالى 0.01 فى متوسطات تمسک المبحوثين بالقيم المجتمعية المدروسة إجمالا وفقا للنوع, الحالة العملية, نوع الحيازة الزراعية والحالة المهنية لصالح المبحوثين الذکور, والمبحوثين الذين يعملون, والمبحوثين الذين يمتلکون حيازات زراعية, والمبحوثين الذين يعملون موظفين على التوالى.","PeriodicalId":14975,"journal":{"name":"Journal of Agricultural Research","volume":"47 1","pages":"1041-1054"},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46913489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-31DOI: 10.21608/zjar.2020.110323
M. Zayed
The present study was carried out to evaluate the relative biological activity of six treatments. Four nanoparticles (chitosan, Hydroxyapatite, chitosan hydroxyapatite and silver hydroxyapatite), one bio-agent effective microorganisms (EMs) compared to one synthetic acricide (bifenzata) were tested against the female adults and eggs of Tetranychus urticae and its predatory mite Amblyseius gossipi using standardized method of bioassay under laboratory conditions. Effect of the tested agents on the activity of carbohydrates enzymes, total lipid and total protein content were determined. The results revealed that chitosan (NPs) showed significantly adulticidal activity against T. urticae. Furthermore, EMs was the most effective treatment on the eggs of T. urticae followed by bifenzata under laboratory conditions. Therefore, nanoparticles and EMs appeared to be highly safe and selective against Amblyseius gossipi. This study suggests the possible use of nanoparticles as safe alternatives to conventional acaricides and compatible with integrated pest management practices. They might be contribute to future applications in pest control for sustainable agriculture.
{"title":"EVALUATION OF NOVEL NANOPARTICLES AGAINST Tetranychus urticae AND ITS PREDATORY MITE Amblyseius gossipi","authors":"M. Zayed","doi":"10.21608/zjar.2020.110323","DOIUrl":"https://doi.org/10.21608/zjar.2020.110323","url":null,"abstract":"The present study was carried out to evaluate the relative biological activity of six treatments. Four nanoparticles (chitosan, Hydroxyapatite, chitosan hydroxyapatite and silver hydroxyapatite), one bio-agent effective microorganisms (EMs) compared to one synthetic acricide (bifenzata) were tested against the female adults and eggs of Tetranychus urticae and its predatory mite Amblyseius gossipi using standardized method of bioassay under laboratory conditions. Effect of the tested agents on the activity of carbohydrates enzymes, total lipid and total protein content were determined. The results revealed that chitosan (NPs) showed significantly adulticidal activity against T. urticae. Furthermore, EMs was the most effective treatment on the eggs of T. urticae followed by bifenzata under laboratory conditions. Therefore, nanoparticles and EMs appeared to be highly safe and selective against Amblyseius gossipi. This study suggests the possible use of nanoparticles as safe alternatives to conventional acaricides and compatible with integrated pest management practices. They might be contribute to future applications in pest control for sustainable agriculture.","PeriodicalId":14975,"journal":{"name":"Journal of Agricultural Research","volume":"47 1","pages":"951-961"},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48633338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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