Alexandria University, Faculty of AgricultureAlexandria Journal of Agricultural Sciences2535-193162620171201Assessment of Soil Degradation and Agricultural Land Suitability for Sustainable Land Management in Alexandria and El-Behiera Governorates, Egypt4234346598510.21608/alexja.2017.65985ENA. Ismail HassanDepartment of Soil and Water Sciences, Faculty of Agriculture, Alexandria University, Egypt.R. Abd EL-Kawy OsamaDepartment of Soil and Water Sciences, Faculty of Agriculture, Alexandria University, Egypt.M. Yehia HaythamSoil Salinity and Alkalinity Department, Soil&water&environment Institute, Agricultural Research Centre,
Ministry of Agriculture, EgyptA. Allam MohamedDepartment of Soil and Water Sciences, Faculty of Agriculture, Alexandria University, Egypt.Journal Article20191224The old agricultural land in Egypt is under continuous threat by different forms of land degradation, especially<br />chemical degradation. This research aimed to (1) assessing and mapping of soil degradation status in some parts of<br />Alexandria and El-Behiera governorates, (2) addressing causes of soil degradation, and (3) developing a rational<br />agricultural land use options to increase land productivity. Soil and water samples were collected for the assessment of<br />soil degradation and land suitability. Soil degradation was assessed based on the methodology developed by the Food and<br />Agriculture Organization (FAO). Land suitability assessment was performed using the ALESarid-GIS model. Field<br />investigations and results of soil analyses indicated that the major type of land degradation in the study area is the<br />chemical soil degradation (soil salinization and alkalinization) and the main drivers of degradation are the inappropriate<br />land management practices. The results of soil chemical degradation showed that most of the investigated area (٨٩%) is<br />moderately degraded soil, whereas the low degraded soils covers the remaining area (11%). Also, the results indicated that<br />the whole investigated soils have a moderate level of biological degradation, which regards to the moderate level of soil<br />organic matter content. The results from ALESarid-GIS indicated that eighteen crops are considered the most suitable to<br />grow in the investigated area. The suitability classes of these crops vary among highly suitable (S1), moderately suitable<br />(S2) and marginally suitable (S3), but (S1+S2) of each crop covers more than 72% of the investigated area. Seven crops<br />can only be grown economically in in the highest levels of soil salinity and alkalinity in the study area, which are alfalfa,<br />wheat, barley, onion, sugar beet, rice and pear, since only these crops are considered highly (S1) and moderately (S2)<br />suitable to be grown in such levels of salinity and alkalinityhttps://alexja.journals.ekb.eg/article_65985_8f893e5c09596543e9188e11e54f5d6b.pdfAlexandria University, Faculty of AgricultureAlexandria Journal of Agricultural Sciences2535-193162620171201Effect of Kinetin and Zinc Foliar Spray on Growth Performance of Clivia miniata. L. Plant.3563816754110.21608/alexja.2017.67541ENSamia M. Z El-Bably,Ornamental Plants and Landscape Gardening Research Department, Horticulture Research Institute,
Agriculture Research Center, Giza, EgyptM. Rashed Nahed,Vegetable and Ornamental Department, Faculty of Agriculture. Damietta University, Damietta, EgyptJournal Article20200105Experiment was conducted at Sakha Horticulture Research Station, Kafr El-Sheikh Governorate, Egypt, during the<br />two successive seasons of 2014/2015 and 2015/2016 to study the effect of foliar spray with kinetin and zinc on Clivia<br />miniata, L. plant for improving growth performance and raising new formed rhizomes. Kinetin and zinc were sprayed<br />after three weeks of planting, three times, with three weeks' interval at the rates of 0, 30,60 and 90 mg/L for kinetin and<br />0,100 and 150 ppm for zinc sulphate. Results indicated that application of kinetin at the rate of 90 ppm coupled with zinc<br />at the rate of 150 ppm significantly increased leaf length by 45.65%, number of leaves by 49.40%, fresh weight of<br />leaves/plant by 57.85 %, dry weight of leaves/plant by 56.90%, precocity in flowering by 35.17% , flowering stalk length<br />by 34.47%, flowering stalk diameter by 41.89%, flowering stalk fresh weight by 66.11%, flowering stalk dry weight by<br />64.84%, , number of florets/flower by 57.79%, number of flower/clump by 60.77% and flowering duration by 47.89% and<br />number of rhizomes/clump by 66.6 as well as fresh and dry weights of rhizomes/ clump by 34.38 and 56.79%<br />respectively. In addition, root length was increased by 55.27%, number of roots by 48.72% as well as fresh and dry roots<br />by 60.07 and 38.59% respectively. Besides, it increased chemical constituents i.e. nitrogen, phosphorus, potassium,<br />chlorophyll (a), chlorophyll (b), carbohydrates content in leaves by 51.73, 51.62, 38.99, 58.36, 41.55 and 30.45%,<br />respectively, compared to untreated plants. Therefore, application of kinetin at the rate of 90 ppm coupled with zinc at the<br />rate of 150 ppm after three weeks of planting Clivia miniata. L. three times with three weeks' interval improved growth<br />performance and raised new formed rhizomes/ clump under local conditions.https://alexja.journals.ekb.eg/article_67541_5feacda6990021f9a6bcd1d0959dd95d.pdfAlexandria University, Faculty of AgricultureAlexandria Journal of Agricultural Sciences2535-193162620171201Studies on Effect of Nitrogen Fertilization and Foliar Feeding of Calcium and Bio Stimulants on the Growth, Yield and Post- Harvest Quality of Garlic II. Effects of Nitrogen, Chitosan and Storage Durations on Post- Harvest Quality of Garlic3833946761810.21608/alexja.2017.67618EN, El-Shal M.A Hanaa, S. HassanDep. of vegetable crops, Faculty of Agriculture, Alexandria University.M.A Abd El-FattahDep. of vegetable crops, Faculty of Agriculture, Alexandria University.M.N Feleafel,Dep. of vegetable crops, Faculty of Agriculture, Alexandria UniversityJournal Article20200106xandria University in Abies, Alexandria, Egypt, during the winter and summer season of 2017, respectively. This<br />study aimes to evaluate the effect of nitrogenrates (0, 50, 100 and 150 Kg Nfed-1) and chitosan (0, 1, 2 and 3 mll-1)<br />and their interaction effects on postharvest quality of garlic plants. The results showed that the percentage of weight loss<br />and chemical composition of garlic (T.S.S , dry matter and total carbohydrates) were significantly increased as N-level<br />increased from 0 up to 150 Kg N fed-1 as well as chitosan concentrations was increased from 0 up to 3 ml/ l. The results<br />indicated also that there were significant interaction effect due to nitrogen levels and chitosan concentrations on all<br />characters. The storage durations months had significant effects on weight loss of garlic bulbs. It was observed that<br />weight loss of garlic bulbs gradually increased with the increase of storage duration up to 4 months. All minerals (N,P,K)<br />and Protein contents of garlic bulbs were significant increased by the application of nitrogen fertilization up to 150 Kg N<br />fed-1as well as by spraying of chitosan up to 3mll-1. The interaction effects of nitrogen and chitosan on N and<br />protein contents of garlic bulbs before or after storage were significant, however, there were as no significant effects on<br />P and K contents of garlic bulbs after storage.https://alexja.journals.ekb.eg/article_67618_aa631b98ac84a4d041a3cdc3692c5a02.pdfAlexandria University, Faculty of AgricultureAlexandria Journal of Agricultural Sciences2535-193162620171201Variability in Seed Yield of Multi-Cut Barseem Clover (Trifolium alexandrinum, L.) Gene Pool3954006761910.21608/alexja.2017.67619ENAhmed M.Abd EL-SattarCrop Science Dept., Faculty of Agriculture (El-shatby), AlexandriaSamir Rady Asmaa MohamedCrop Science Dept., Faculty of Agriculture (El-shatby), AlexandriaFakhary Haeba M.Post- graduate student, Crop Science Dept., Faculty of Agriculture (El-shatby), Alexandria University
* Corresponding auther.Journal Article20200106The objective of the recent study was to detect variability in Egyptian multi-cut barseem gene pool via studying four<br />different commercial populations regarding seed yield and seed yield components. These were; Khadarwi, Meskawi,<br />Serow and Helaly. Means of total seed weight.plant-1were approximately similar for Khadarawi (26.131g) and Meskawi<br />(26.122) population. This was affected by similar figures for seed yield components. Serow population scored the least<br />seed weight.plant-1 (21.981g) affected largely by the least number of seed.head-1 (37.79 seed.head-1). Meanwhile, Helaly<br />population had the second least total seed weight.plant-1 (23.49g) affected also by low figure of number of seed.head-1.<br />Major proportion of total variance (σ2p)was contributed by the genotypic component (σ2g) in total seed weight. plant-1 and<br />number of heads.plant-1in all studied barseem populations. Whereas, the genotypic variance represented a very limited<br />portion of phenotypic variance for other studied seed yield components in all studied populations. Heritability estimates in<br />khadarawi and Meskawi populations postulated a strong genetic control on total seed weight .plant-1 and number of heads.<br />plant-1 (0.98 and 0.97%). While, weak estimates were recorded for number of seeds.head-1, seed weight.head-1and 1000<br />seed weight (0.23, 0.13 and 0.04%, respectively). Estimates of expected gain from selection the top 10% of half-sib<br />families of khadarawi population might result in 59.85% increase in total seed weight, which amount to15.64 g.plant-<br />1.Concerning Helaly population selecting the top 10% of half-sib families might result in total seed weight.plant-1 and<br />number heads.plant-1 increase of 72.43 and 67.09% which might amount to 17.01g.plant-1 and 105.8heads.plant-1.https://alexja.journals.ekb.eg/article_67619_600e804419d77b3e75315041d42ce6c4.pdfAlexandria University, Faculty of AgricultureAlexandria Journal of Agricultural Sciences2535-193162620171201Standardized Correlations and Path-Coefficient Analysis for Seed Yield in Four Populations of Egyptian Multi-Cut Barseem Clover "Trifolium Alexandrinum,L."4014066762110.21608/alexja.2017.67621ENSamir Rady Asmaa MohamedCrop Science Dept., Faculty of Agriculture (El-shatby), AlexandriaJournal Article20200106The objective of the present study was to determine through path-analysis the significant role of seed yield<br />components in the yield of barseem seed, their interrelationships and relative importance, considering four variable<br />population. In all studied multi-cut barseem populations, number of heads.plant-1 was the most positively correlated trait<br />with total seed yield. While, seed weight.head-1 was of moderate correlation with total seed weight in three out of the four<br />populations (Alexandria I, Meskawi and Helaly). Also number of seeds.head-1 was of moderate positive correlation with<br />total seed weight in only two populations (Meskawi and Helaly). The strongest positive correlation was expressed<br />between number of seeds.head-1 and seed weight.head-1 in all studied barseem populations. This latter results might<br />indicate that seed weight.head-1 might influence the total seed yield through number of seed.head-1.https://alexja.journals.ekb.eg/article_67621_1dda5c9e0744506b233e137a98ed50b9.pdfAlexandria University, Faculty of AgricultureAlexandria Journal of Agricultural Sciences2535-193162620171201Toxicity of Cholantraniliprole against Different Developmental Stages of the Cotton Leafworm under Laboratory Conditions4074136762210.21608/alexja.2017.67622ENM. Moustafa Moataz A.Department of Economic Entomology and Pesticides, Faculty of Agriculture,
Cairo University, 12613 Giza, EgyptJournal Article20200106Spodoptera littoralis management has been counted on the application of the synthetic chemical pesticides, but because<br />of insecticides resistant problems in the cotton leafworm, the competence of these chemical have been reduced. So, new<br />insecticides with different action could solve this problem. In this study, the activity of a new insecticide,<br />chlorantraniliprole (Coragen® 20%SC), was evaluated against different stages of S. littoralis. For egg stage of S. littoralis,<br />two different ages, < 24 h and 24-48 h were used and dipped in serial concentrations of chlorantraniliprole. The result<br />presented that the young eggs were more sensitive than the old one with LC50 value of 126.6 mg/l in case in the young<br />eggs while it was 144.81 mg/l in the old one. In addition, the larvae of 2nd instar were exhibited a high susceptibility to<br />chlorantraniliprole after 96 hrs. In contrast, when pupae were dipped in chlorantraniliprole different concentrations, the<br />result showed no significant pupal mortality (20%) in the lower concentration (200-800 ppm), while the highest<br />concentration (800 mg/l) showed 43.3% mortality. The letant effect of chlorantraniliprole at LC25 (0.036 mg/l) on 2nd<br />instar showed that the developmental time of larval and pupal stages has been prolonged and the percentage of<br />hatchability was reduced as contrasted to untreated larvae. The present results propose that Coragen® could be a<br />potentially effective and likely to be an alternative insecticide that can be used for S. littoralis management in Egypt.https://alexja.journals.ekb.eg/article_67622_c986c1c114954e3a6f629e2918d01335.pdfAlexandria University, Faculty of AgricultureAlexandria Journal of Agricultural Sciences2535-193162620171201Identification of Three Egyptian Annona Cultivars Morhologically and Biochimically using Rapd Analysis4154216762310.21608/alexja.2017.67623ENM. M. A. AbdelkawyTropical Fruit Research Department of Horticultural Research, Institute.Giza, EgyptEl-nawam SafaaM.A.Tropical Fruit Research Department of Horticultural Research, Institute.Giza, Egypt.Journal Article20200106To detect remarkable fingerprinting and evaluate genetic variation and similarity among three Egyptian cultivars<br />Annona sp. (which cultured in Sabahia Horticulture Research Station, during 2016 and 2017 seasons atSabahia<br />Horticulture Research Station (HRI), namely: Abd Elrazek, Baladi, and Senigalinsis) first morphologically using Leaf<br />diameter, then seed number and fruit dimension, it was found that fruit and seeds could be used to evaluate variation and<br />genetic similarity among cultivars. Where Abdelrazik was the lowest in seed number with 37 seeds comparing with Baladi<br />and Sengalinsis with 73 and 127 respectively.<br />Moreover, fruit could be used to evaluate genetic similarity among cultivars. Abdelrzak was the lowest in seed<br />number with 37 seeds comparing with Baladi and Senigalinses with 73 and 127 respectively.<br />Leaf parameters were used as a species and varieties diversity and found useful with longest leaf length for<br />Abdelrzak and Sengalinsis 13.5 cm and 12.43 cm respectively. While Baladi was the shortest with 0.30 cm.<br />`Finally molecular marker techniques (Random Amplified polymorphic DNA (RAPD) fingerprinting technique,)<br />were used Different polymorphism percentages were recorded for four random primers (OPG1, POG2, OPG3 and<br />OPG4) through this investigation. Generally, all genotypes could be distinguished via four random primers under<br />study. First primer reflected high polymorphic percentage with 82 % of polymorphism. On the other hand,<br />high similarity percentage and lowest polymorphism percentage were recorded for fourth primer with 50 % of<br />polymorphism.,,, A dendrogram was done to depict the pattern of relationships between the studied cultivars and<br />their genetic diversity Not only it was fairly good But Also it reveal the need of further studies with new suitable<br />techniques.https://alexja.journals.ekb.eg/article_67623_4d143ad591ac4fb03579c7e3d0204640.pdfAlexandria University, Faculty of AgricultureAlexandria Journal of Agricultural Sciences2535-193162620171201أهم العوامل الاقتصادية المؤئرة على صادرات البطاطس المصرية ومحددات الطلب لأهم الدول المستوردة76177521006310.21608/alexja.2017.210063ENسهام أحمد عبدالحميد هاشممعهد الدراسات والبحوث البيئية – جامعة عين شمس – القاهرة – مصرJournal Article20211221تعتبر البطاطس من أهم محاصيل الخضر في مصر التي يتم تصديرها، حيث يمثل متوسط قيمة صادراتها خلال الفترة (2000-2015) نحو 127.8 مليون دولار، تمثل نحو 11.5% من الإنتاج الکلى من البطاطس. واستهدف البحث تحليل بعض أهم المتغيرات الاقتصادية التي يعتقد في تأثيرها على صادرات مصر من البطاطس، ودراسة محددات الطلب على البطاطس المصرية في کل من السوق الروسي والسوق الإيطالي. وتم الاعتماد على أسلوب الانحدار المتعدد في تقدير دوال الطلب الروسي والإيطالي على البطاطس المصرية، بغرض تحديد أهم المتغيرات التي تؤثر عليه، وتبين أن أهم العوامل المؤثرة على صادرات البطاطس کانت تکاليف مستلزمات الإنتاج الزراعي، سعر الصرف، الناتج المحلي الإجمالي، الاستثمار الزراعي. کما تم التعرف على المشکلات التي تواجه تنمية الصادرات حسب درجة الأهمية من وجهة نظر المصدرين من خلال عينة ميدانية للمصدرين. کما تم تقدير محددات الطلب على البطاطس بأهم الأسواق المستوردة للبطاطس المصرية، السوق الروسي والسوق الإيطالي، وکانت أهم محددات الطلب على البطاطس المصرية بالسوق الروسي التي لها تأثر معنوي ايجابي، سعر تصدير البطاطس المصرية للسوق الروسي بالدولار، سعر تصدير هولندا للبطاطس للسوق الروسي بالدولار، سعر تصدير ارزبيجان للبطاطس للسوق الروسي بالدولار، کمية صادرات ارزبيجان للسوق الروسى، بينما تبين وجود علاقة عکسية معنوية بين کمية صادرات مصر من البطاطس للسوق الروسي وسعر تصدير الصين للبطاطس للسوق الروسي بالدولار، بينما کانت محددات الطلب على البطاطس في السوق الايطالي التي لها تأثير سلبى معنوى، سعر طن البطاطس المصرية للسوق الإيطالي بالدولار، وواردات إيطاليا من البطاطس من الدول الأخرى، إنتاج ايطاليا من البطاطس، کما تبين أن متوسط ناتج الفرد بايطاليا له تأثير إيجابي معنوي على الکمية المطلوبة من البطاطس المصرية، وقد ثبت معنوية تلک العوامل إحصائياً.https://alexja.journals.ekb.eg/article_210063_082b4f14a3dfd63e5240cef54d6ba3ab.pdf