Pub Date : 2022-08-01DOI: 10.21608/jaesj.2022.159327.1015
Samr Mansour, Ahmed Abousalem, Khaled Alfeel, Magda Yousef
{"title":"دراسة تحليلية لدور المرأة الريفية فى ترشيد إستهلاك مياه الشرب ببعض قرى محافظة البحيرة","authors":"Samr Mansour, Ahmed Abousalem, Khaled Alfeel, Magda Yousef","doi":"10.21608/jaesj.2022.159327.1015","DOIUrl":"https://doi.org/10.21608/jaesj.2022.159327.1015","url":null,"abstract":"","PeriodicalId":21277,"journal":{"name":"Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81671123","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 : 2022-08-01DOI: 10.21608/jaesj.2023.159360.1016
Eman El_fahl, Amin Eldokla
{"title":"دراسة اقتصادية لدور المشروعات متناهية الصغر في التمكين الاقتصادي للمرأة الريفية بمحافظة الغربية","authors":"Eman El_fahl, Amin Eldokla","doi":"10.21608/jaesj.2023.159360.1016","DOIUrl":"https://doi.org/10.21608/jaesj.2023.159360.1016","url":null,"abstract":"","PeriodicalId":21277,"journal":{"name":"Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90907210","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 : 2022-08-01DOI: 10.21608/jaesj.2022.156028.1010
رضا طاهر طحاوي, عفت فايز علام
{"title":"وعى المربين بالتوصيات الفنية الارشادية للنهوض بإنتاجية نحل العسل بمحافظة الوادي الجديد","authors":"رضا طاهر طحاوي, عفت فايز علام","doi":"10.21608/jaesj.2022.156028.1010","DOIUrl":"https://doi.org/10.21608/jaesj.2022.156028.1010","url":null,"abstract":"","PeriodicalId":21277,"journal":{"name":"Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91355326","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 : 2022-04-01DOI: 10.21608/jaesj.2022.131189.1001
Khaled El-Feki, M. El-Metwally, Youssef M. M. Mohammed, T. Ahmed
Crustacean shells constitute the traditional and current commercial source of chitin. Conversely, the control of fungal fermentation processes to produce quality chitin makes fungal mycelia an attractive alternative source. Our study examined the production of chitin from mycelia of different fungal isolates recovered from soil samples collected from different places in El-Beheira Governorate, Egypt, during 2021 . Among the 21 isolate 9 were identified with standard key and microbial expert and because these isolates are pure isolates.In batch culture, isolates were screened to determine the fastest growing and greatest chitin‐yielding fungi. Optimum chitin yields were observed for most cultures at 28°C on Czapek's dox (CD) for 7 days. From the results we observed that; the production of chitin (by a dry weight method) ranged from 15.41 to 54.78 % of the isolate dry weight , the Fusarium KYM3 was the best producer of chitin of the isolates examined and Penicillium KYM6 was the lowest producer of chitin of the isolates examined.
{"title":"Production of chitin from some soil fungi","authors":"Khaled El-Feki, M. El-Metwally, Youssef M. M. Mohammed, T. Ahmed","doi":"10.21608/jaesj.2022.131189.1001","DOIUrl":"https://doi.org/10.21608/jaesj.2022.131189.1001","url":null,"abstract":"Crustacean shells constitute the traditional and current commercial source of chitin. Conversely, the control of fungal fermentation processes to produce quality chitin makes fungal mycelia an attractive alternative source. Our study examined the production of chitin from mycelia of different fungal isolates recovered from soil samples collected from different places in El-Beheira Governorate, Egypt, during 2021 . Among the 21 isolate 9 were identified with standard key and microbial expert and because these isolates are pure isolates.In batch culture, isolates were screened to determine the fastest growing and greatest chitin‐yielding fungi. Optimum chitin yields were observed for most cultures at 28°C on Czapek's dox (CD) for 7 days. From the results we observed that; the production of chitin (by a dry weight method) ranged from 15.41 to 54.78 % of the isolate dry weight , the Fusarium KYM3 was the best producer of chitin of the isolates examined and Penicillium KYM6 was the lowest producer of chitin of the isolates examined.","PeriodicalId":21277,"journal":{"name":"Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89953051","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 : 2022-04-01DOI: 10.21608/jaesj.2022.151506.1009
السيد عبد الرحمن, ناصر همام
{"title":"أثر تطبيق منظومة تسويق القطن المصري الحديثة علي كفاءته وتنافسيته اقتصادياً","authors":"السيد عبد الرحمن, ناصر همام","doi":"10.21608/jaesj.2022.151506.1009","DOIUrl":"https://doi.org/10.21608/jaesj.2022.151506.1009","url":null,"abstract":"","PeriodicalId":21277,"journal":{"name":"Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76732251","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 : 2022-04-01DOI: 10.21608/jaesj.2022.131555.1000
M. Harhash
{"title":"المتغيرات المرتبطة بإستعداد طلاب كليات الزراعة لريادة الأعمال في مجال الزراعة","authors":"M. Harhash","doi":"10.21608/jaesj.2022.131555.1000","DOIUrl":"https://doi.org/10.21608/jaesj.2022.131555.1000","url":null,"abstract":"","PeriodicalId":21277,"journal":{"name":"Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82814183","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 : 2021-12-01DOI: 10.21608/jaesj.2021.236693
شحاته غنيم, مفيدة قابيل, هالة حربي
{"title":"دراسة إقتصادية عن الفجوة القمحية في مصر","authors":"شحاته غنيم, مفيدة قابيل, هالة حربي","doi":"10.21608/jaesj.2021.236693","DOIUrl":"https://doi.org/10.21608/jaesj.2021.236693","url":null,"abstract":"","PeriodicalId":21277,"journal":{"name":"Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72633557","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 : 2021-12-01DOI: 10.21608/jaesj.2021.236658
Gihan Aly
Resistance to major insecticide classes was diagnosed in the cotton leafworm (CLW) Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae). This study was carried out to monitor the resistance levels in field strain collected from Abou- Homos, El-Behira government to some insecticides in comparison with laboratory strain. In addition, ovicidal activity of the formulated tested insecticides against laboratory and field strain of CLW egg masses was determined. The activities of glutathione S transferases (GST) and total esterases were determined in both strains. The results revealed that 2 nd instar larvae of the field strain exhibited different levels of resistance to cypermethrin, chlorpyrifos, and methoxfenozide with resistance ratios (RR) 12.7, 48.0, and 13.8, respectively, while 2 nd instar larvae of field strain showed tolerance ratios 4.6 and 5.0 to chlorantraniliprole and chlorfluazuron, respectively. Fourth instar larvae exhibited high resistance levels to cypermethrin (120.8) and moderate resistance to chlorpyrifos (19.0). On the other hand, 4 th instar larvae of field strain showed tolerance ratios to chlorantraniliprole methoxfenozide and chlorfluazuron (3.3). Concerning the ovicidal and residual toxicity, cypermethrin, chlorpyrifos, chlorantraniliprole and chlorfluazuron at the recommended field rate achieved 95.3, 98.9, 93.3 and 96.8% mortality of treated eggs and neonates of the laboratory strain, respectively. The same treatments achieved 75.6, 70.0, 85.2 and 91.6%, respectively, for the egg masses of field strain. On the other hand, there is no significant difference between the ovicidal and residual toxicity of methoxfenozide against neonates of both strains. The field strain exerted elevated GST and esterases activity compared to the laboratory one. Therefore, monitoring of insecticide resistance is the first step for the resistance management programs.
{"title":"COMPARATIVE TOXICITY OF CERTAIN INSECTICIDES AGAINST LARVAE AND EGG STAGES OF COTTON LEAFWORM LABORATORY AND FIELD STRAINS","authors":"Gihan Aly","doi":"10.21608/jaesj.2021.236658","DOIUrl":"https://doi.org/10.21608/jaesj.2021.236658","url":null,"abstract":"Resistance to major insecticide classes was diagnosed in the cotton leafworm (CLW) Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae). This study was carried out to monitor the resistance levels in field strain collected from Abou- Homos, El-Behira government to some insecticides in comparison with laboratory strain. In addition, ovicidal activity of the formulated tested insecticides against laboratory and field strain of CLW egg masses was determined. The activities of glutathione S transferases (GST) and total esterases were determined in both strains. The results revealed that 2 nd instar larvae of the field strain exhibited different levels of resistance to cypermethrin, chlorpyrifos, and methoxfenozide with resistance ratios (RR) 12.7, 48.0, and 13.8, respectively, while 2 nd instar larvae of field strain showed tolerance ratios 4.6 and 5.0 to chlorantraniliprole and chlorfluazuron, respectively. Fourth instar larvae exhibited high resistance levels to cypermethrin (120.8) and moderate resistance to chlorpyrifos (19.0). On the other hand, 4 th instar larvae of field strain showed tolerance ratios to chlorantraniliprole methoxfenozide and chlorfluazuron (3.3). Concerning the ovicidal and residual toxicity, cypermethrin, chlorpyrifos, chlorantraniliprole and chlorfluazuron at the recommended field rate achieved 95.3, 98.9, 93.3 and 96.8% mortality of treated eggs and neonates of the laboratory strain, respectively. The same treatments achieved 75.6, 70.0, 85.2 and 91.6%, respectively, for the egg masses of field strain. On the other hand, there is no significant difference between the ovicidal and residual toxicity of methoxfenozide against neonates of both strains. The field strain exerted elevated GST and esterases activity compared to the laboratory one. Therefore, monitoring of insecticide resistance is the first step for the resistance management programs.","PeriodicalId":21277,"journal":{"name":"Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80318251","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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