Middle East Journal of Agriculture Research最新文献

{"title":"Influence of Climatic Conditions and Phenological Stages on Chemical Composition,\u0000Essential Oils and Anatomical Characteristics of Ajuga iva (L.) Schreb.","authors":"T. M. El-Lamey","doi":"10.36632/mejar/2021.10.4.90","DOIUrl":"https://doi.org/10.36632/mejar/2021.10.4.90","url":null,"abstract":"Many species of Ajuga have medicinal values and widely used to treat many diseases. The medicinal values of Ajuga iva are associated with the containment of many pharmaceutical compounds as essential oils, diterpenoids, triterpenes and phenolic compounds. No information is currently available concerning the effect of different climatic conditions and phenological stages on chemical composition, essential oils or anatomical features of Ajuga iva. Therefore, this study aimed to investigate the effect of different climatic conditions and phenological stages on the contents of free sugars, phytohormone and essential oils, as well as anatomical characteristics of Ajuga iva (L.) Schreb. The leaves of Ajuga iva, showed the presence of high frequency of trichomes in upper and lower leaf surfaces which may limit light absorption, thereby reducing the risk of photoinhibition. The results indicated that the contents of chlorophyll a, total carbohydrates and most of the detected sugars were significantly increased during the flowering stage in dry season. HPLC analysis of Ajuga extracts identified 14 phenolic compounds most of which tended to increase in the flowering stage. Where the concentrations of pyrogallol increased 3.7-fold and gallic acids increased 4.6-fold, also the concentrations of catechol and vanillic acid increased intensely 8 and 7-fold, respectively. The results indicated that the yield of essential oils of the aerial parts of Ajuga iva have depended on the phenological stages and significantly increased in winter. The data of headspace GC-MS analysis of volatile oils indicated that the essential oils of Ajuga iva were dominated by volatile monoterpenes (C10H16) which have been shown to play important ecological roles in plant defence mechanisms. Sabinene was the main constituent in the essential oil of Ajuga, followed by α -thujene and α-pinene. The results indicated that the full flowering stage was considered as an ideal period for harvesting the high yield of plant hormones, sugars and phenolic compounds, as well as α-Thujene from Ajuga iva.","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114210512","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}

{"title":"Physiological role of arginine on wheat (Triticum aestivum L.) cultivars grown under\u0000water drought condition","authors":"","doi":"10.36632/mejar/2020.9.2.30","DOIUrl":"https://doi.org/10.36632/mejar/2020.9.2.30","url":null,"abstract":"","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121547222","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}

{"title":"Reducing sap-sucking pests infesting Eggplant using biological control agent and\u0000colored plastic soil mulches under green house","authors":"","doi":"10.36632/mejar/2020.9.1.7","DOIUrl":"https://doi.org/10.36632/mejar/2020.9.1.7","url":null,"abstract":"","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"361 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114010981","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}

{"title":"Effect of salicylic acid,gibberellic acid, and hot water dipping on storability of grapefruit fruits Citrus paradise Macf.","authors":"","doi":"10.36632/mejar/2021.10.1.8","DOIUrl":"https://doi.org/10.36632/mejar/2021.10.1.8","url":null,"abstract":"","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127930102","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}

{"title":"Numerical Evaluation for Total Yield and Fruit Quality of Five LocalPrickly Pear Strains under El-Monofia Governorate Conditions","authors":"Nebal, M. Amin","doi":"10.36632/mejar/2020.9.4.73","DOIUrl":"https://doi.org/10.36632/mejar/2020.9.4.73","url":null,"abstract":"Field work of this investigation was carried out during the two successive seasons of 2019 and 2020 on ten yearold commercial shrubs of the Egyptian prickly pear strains grown in sandy soil at 3 X 3 meters apart, in private orchard in ElMonofia Governorate, Egypt. The strains were evaluated relative to growth, yield and fruit quality. The obtained results could be summarized as follows:-The obtained results showed that, the highest value of cladodes properties and flowering characters expect flowering percentage and total yield were gained for fourth strain in both seasons. First strain produced the highest Flowering percentage and total yield followed by fourth strain while, the lowest values were gained for fifth strain and it ranged between (73.76 – 87.59% and 21.5 – 35.9 kg) in both seasons, respectively. Fruit weight and dimensions as well as seeds weight and number recorded the highest values by first strain followed by third strain while, the lowest values were gained for second strain followed by fourth strain and the fifth strain came intermediate. Concerning chemical parameters, the highest total sugar percentage ranged from 9.2 to 12.5 % and 10.9 to 13.8 % in the fruit pulp and peel and gained the highest percentage with third strain followed by second and first strains whereas, fifth and fourth strains recorded the lowest percentage without significant differences between them in both seasons, respectively. Reducing, non-reducing sugar percentage and pectin content in fruit pulp and peel as well as TSS % in pulp juice take similar trend of total sugar percentage. Second strain was recorded the highest TSS/acid ratio and ascorbic acid content followed by first strain while; the lowest values were gained by fourth and fifth strains. Total score for yield and fruit quality (100). First strain seemed to be the higher in the general evaluation score (96.4 unit) in the average of two seasons followed by third strain (90.87 unit) and fourth strain (89.68 unit) while, the lowest general evaluation score was gained by fifth strain (82.01 unit) followed by second strain (85.11 unit).","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"343 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133953066","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}

{"title":"Effect of Irrigation Intervals and Sodium Selenite on Growth, Seed Yield and\u0000Essential Oil of Fennel","authors":"","doi":"10.36632/mejar/2021.10.1.25","DOIUrl":"https://doi.org/10.36632/mejar/2021.10.1.25","url":null,"abstract":"","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131630010","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}

{"title":"Evaluating the efficiency of intercropping systems for three maize hybrids with cowpea on yield productivity and net profit","authors":"","doi":"10.36632/mejar/2022.11.4.67","DOIUrl":"https://doi.org/10.36632/mejar/2022.11.4.67","url":null,"abstract":"","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131837429","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}

{"title":"Technical, economic and marketing assessment to determine the losses of Strawberry\u0000Fruits during harvesting in the West Nubaria region","authors":"","doi":"10.36632/mejar/2022.11.3.48","DOIUrl":"https://doi.org/10.36632/mejar/2022.11.3.48","url":null,"abstract":"","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132980567","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}

{"title":"Effects of late wilt disease on infection development of ear rot disease, phenolic\u0000compounds, trypsin and α-amylase inhibitors of some maize hybrids grains and\u0000quality characteristics of fortified cookies","authors":"","doi":"10.36632/mejar/2020.9.3.40","DOIUrl":"https://doi.org/10.36632/mejar/2020.9.3.40","url":null,"abstract":"","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129385470","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}

{"title":"Impact of Eco-Friendly Methods in Controlling the Population Density of Pests that Infesting Cucumber Crop","authors":"","doi":"10.36632/mejar/2022.11.4.62","DOIUrl":"https://doi.org/10.36632/mejar/2022.11.4.62","url":null,"abstract":"","PeriodicalId":346845,"journal":{"name":"Middle East Journal of Agriculture Research","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131076310","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}