Pub Date : 2023-03-27DOI: 10.22620/agrisci.2023.36.004
T. Yoncheva, Dimitar Dimitrov, A. Iliev
During the period 2021-2022, the dynamics of ripening and the phenolic content of grapes from the varieties Cabernet Sauvignon, Gamza and Rubin, grown in the region of the town of Pleven, were studied. The changes in the meteorological indicators throughout the vegetation period were monitored. During the winter months, significantly low temperatures for the vine plant growth were not registered in the region. The onset of the vines’ vegetative development was in the middle (2021) or the early (2022) April. During the grapes ripening period, the dynamics of sugars and total acids were monitored. The Rubin variety showed the fastest sugar accumulation while maintaining a relatively high acidity rate. The Gamza and Cabernet Sauvignon varieties were later ripening and revealed a gradual increase in sugars and a decrease in total acids. The highest sugar accumulation in the Rubin and Gamza varieties was found in 2021, while for Cabernet Sauvignon - in the grapes from the 2022 harvest. Both the weather conditions during the year and the varietal characteristics, specifics and potential had an impact on the phenolic content in the structural elements of the cluster. The varieties had different reserves of total, flavonoid and non-flavonoid phenolic compounds, which increased in the order of berries < skins < rachis < seeds. The Rubin variety had the highest values of the studied phenolic components, followed by Cabernet Sauvignon, and the lowest were in Gamza. The anthocyanin content of the varieties changed in the same sequence. In all three varieties, the anthocyanin content in the skins was significantly higher compared to the berries.
{"title":"Influence of climatic conditions on ripening and the phenolic content of grapes from Cabernet Sauvignon, Gamza and Rubin red vine varieties","authors":"T. Yoncheva, Dimitar Dimitrov, A. Iliev","doi":"10.22620/agrisci.2023.36.004","DOIUrl":"https://doi.org/10.22620/agrisci.2023.36.004","url":null,"abstract":"During the period 2021-2022, the dynamics of ripening and the phenolic content of grapes from the varieties Cabernet Sauvignon, Gamza and Rubin, grown in the region of the town of Pleven, were studied. The changes in the meteorological indicators throughout the vegetation period were monitored. During the winter months, significantly low temperatures for the vine plant growth were not registered in the region. The onset of the vines’ vegetative development was in the middle (2021) or the early (2022) April. During the grapes ripening period, the dynamics of sugars and total acids were monitored. The Rubin variety showed the fastest sugar accumulation while maintaining a relatively high acidity rate. The Gamza and Cabernet Sauvignon varieties were later ripening and revealed a gradual increase in sugars and a decrease in total acids. The highest sugar accumulation in the Rubin and Gamza varieties was found in 2021, while for Cabernet Sauvignon - in the grapes from the 2022 harvest. Both the weather conditions during the year and the varietal characteristics, specifics and potential had an impact on the phenolic content in the structural elements of the cluster. The varieties had different reserves of total, flavonoid and non-flavonoid phenolic compounds, which increased in the order of berries < skins < rachis < seeds. The Rubin variety had the highest values of the studied phenolic components, followed by Cabernet Sauvignon, and the lowest were in Gamza. The anthocyanin content of the varieties changed in the same sequence. In all three varieties, the anthocyanin content in the skins was significantly higher compared to the berries.","PeriodicalId":7600,"journal":{"name":"Agricultural sciences","volume":"90 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90589939","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}
Rameshwar Raghunauth, Raghunath Chandranauth, Z. Bacchus, S. Chibi, Jagnarine Singh
{"title":"Evaluating Two Varieties of Sweet Pepper Using Different Nutrient Sources to Increase Productivity","authors":"Rameshwar Raghunauth, Raghunath Chandranauth, Z. Bacchus, S. Chibi, Jagnarine Singh","doi":"10.4236/as.2023.146050","DOIUrl":"https://doi.org/10.4236/as.2023.146050","url":null,"abstract":"","PeriodicalId":7600,"journal":{"name":"Agricultural sciences","volume":"181 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73483799","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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{"title":"Acid-Phosphorus Activity of Wheat Varieties Rhizobacteria of Uzbekistan","authors":"Z. Shakirov, Iskandar Yakubov, K. Mamanazarova, M. ugli, Xayrullaev Abdumalik","doi":"10.4236/as.2023.148065","DOIUrl":"https://doi.org/10.4236/as.2023.148065","url":null,"abstract":"","PeriodicalId":7600,"journal":{"name":"Agricultural sciences","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74181062","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}
T. Oben, Doris Besem Arrey, George Teboh Mbah, D. Agbor, E. Bechem, E. Andrew
{"title":"Botanicals, as a Sustainable Agroecological Alternative to Synthetic Pesticide for Controlling Leaf Miner (Pinworm) and Fusarium Wilt Disease of Tomato","authors":"T. Oben, Doris Besem Arrey, George Teboh Mbah, D. Agbor, E. Bechem, E. Andrew","doi":"10.4236/as.2023.148068","DOIUrl":"https://doi.org/10.4236/as.2023.148068","url":null,"abstract":"","PeriodicalId":7600,"journal":{"name":"Agricultural sciences","volume":"222 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72550257","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}
Ngesang Ngiqueh Ngetleh, Mary Juliet Bime-Egwu, M. D. Tambi
{"title":"Drivers of Innovative Urban and Peri-Urban Agriculture in Bamenda City, Cameroon","authors":"Ngesang Ngiqueh Ngetleh, Mary Juliet Bime-Egwu, M. D. Tambi","doi":"10.4236/as.2023.149076","DOIUrl":"https://doi.org/10.4236/as.2023.149076","url":null,"abstract":"","PeriodicalId":7600,"journal":{"name":"Agricultural sciences","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81718123","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":"Yield and Pest Performance of High-Temperature Tolerant Tomato (<i>Lycopersicon esculentum</i>) Lines for Year-Round Tomato Production in Bangladesh","authors":"A. Quamruzzaman, L. Akter, F. Islam","doi":"10.4236/as.2023.147057","DOIUrl":"https://doi.org/10.4236/as.2023.147057","url":null,"abstract":"","PeriodicalId":7600,"journal":{"name":"Agricultural sciences","volume":"150 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82898164","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}
Georges Marius Etame Kossi, Honoré Beyegue Djonko, A. Boukong, Francis Brice Silatsa Tedou
{"title":"Extensive Pineapple Production Constraints and Land Suitability in the Centre Region of Cameroon","authors":"Georges Marius Etame Kossi, Honoré Beyegue Djonko, A. Boukong, Francis Brice Silatsa Tedou","doi":"10.4236/as.2023.142016","DOIUrl":"https://doi.org/10.4236/as.2023.142016","url":null,"abstract":"","PeriodicalId":7600,"journal":{"name":"Agricultural sciences","volume":"41 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88749615","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":"Evaluation of Some Promising Soybean Genotypes to Infestation with Cotton Leafworm (<i>Spodoptera littoralis</i>) under Field Conditions","authors":"E. I. Abdel-Wahab, M. Naroz","doi":"10.4236/as.2023.141007","DOIUrl":"https://doi.org/10.4236/as.2023.141007","url":null,"abstract":"","PeriodicalId":7600,"journal":{"name":"Agricultural sciences","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89705394","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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