Influence of Sowing Date and Humic Acid Application on <i>Foeniculum vulgare</i> Mill. Growth, Yield, and Essential Oil Composition
This study investigated the impact of varying sowing dates and concentrations of humic acid (HA) on the growth, yield, and essential oil profile of fennel (<i>Foeniculum vulgare</i>) across two consecutive growing seasons (2020/2021 and 2021/2022). The experiment was carried out at Aswan...
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2024-12-01
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| author | Ahmed Samy Said S. Soliman Sayed S. A. Abdel-Rahman Wagdi S. Soliman Ahmed M. Abbas |
| author_facet | Ahmed Samy Said S. Soliman Sayed S. A. Abdel-Rahman Wagdi S. Soliman Ahmed M. Abbas |
| author_sort | Ahmed Samy |
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| description | This study investigated the impact of varying sowing dates and concentrations of humic acid (HA) on the growth, yield, and essential oil profile of fennel (<i>Foeniculum vulgare</i>) across two consecutive growing seasons (2020/2021 and 2021/2022). The experiment was carried out at Aswan University’s Agricultural Experimental Farm in Egypt, utilizing a split-plot design with three sowing dates (15th October, 1st November, and 15th November) along with four HA concentrations (0, 2.5, 3.75, and 5 kg ha<sup>−1</sup>). The results revealed that early sowing on 15th October and enrichment with 5 kg ha<sup>−1</sup> of HA significantly enhanced plant height, stem diameter, branch number, umbels per plant, and fruit yield. The highest fruit yield (2684 kg ha<sup>−1</sup>) and essential oil yield (27.3 L ha<sup>−1</sup>) were obtained from plants sown on 15th October and treated with 5 kg ha<sup>−1</sup> HA. Moreover, the essential oil composition was notably affected, with significant increases in the concentration of anethole, estragole, and other critical compounds under the same treatment. Conversely, delayed sowing reduced both the yield and oil content. These findings highlight the importance of optimizing sowing dates and HA application rates to maximize fennel’s yield and essential oil quality, particularly in arid regions. The findings of this study offer practical guidance for optimizing fennel cultivation in arid regions by integrating early sowing dates and humic acid applications, which can significantly enhance yield and essential oil quality. These insights are particularly valuable for the medicinal and aromatic plant industries, supporting sustainable agriculture and improving the commercial viability of fennel production under climate-challenged conditions. |
| format | Article |
| id | doaj-art-5e02d2d27b154c6eab8a60518ea587a4 |
| institution | Kabale University |
| issn | 2311-7524 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj-art-5e02d2d27b154c6eab8a60518ea587a42025-01-24T13:34:29ZengMDPI AGHorticulturae2311-75242024-12-011111810.3390/horticulturae11010018Influence of Sowing Date and Humic Acid Application on <i>Foeniculum vulgare</i> Mill. Growth, Yield, and Essential Oil CompositionAhmed Samy0Said S. Soliman1Sayed S. A. Abdel-Rahman2Wagdi S. Soliman3Ahmed M. Abbas4Department of Natural Resources (Plant Resources), Institute of African Research and Studies and Nile Basin Countries, Aswan University, Aswan 81528, EgyptDepartment of Natural Resources (Plant Resources), Institute of African Research and Studies and Nile Basin Countries, Aswan University, Aswan 81528, EgyptHorticulture Department, Faculty of Agriculture, Assiut University, Assiut 71515, EgyptHorticulture Department, Faculty of Agriculture and Natural Resources, Aswan University, Aswan 81528, EgyptBiology Department, College of Science, King Khalid University, Abha 61321, Saudi ArabiaThis study investigated the impact of varying sowing dates and concentrations of humic acid (HA) on the growth, yield, and essential oil profile of fennel (<i>Foeniculum vulgare</i>) across two consecutive growing seasons (2020/2021 and 2021/2022). The experiment was carried out at Aswan University’s Agricultural Experimental Farm in Egypt, utilizing a split-plot design with three sowing dates (15th October, 1st November, and 15th November) along with four HA concentrations (0, 2.5, 3.75, and 5 kg ha<sup>−1</sup>). The results revealed that early sowing on 15th October and enrichment with 5 kg ha<sup>−1</sup> of HA significantly enhanced plant height, stem diameter, branch number, umbels per plant, and fruit yield. The highest fruit yield (2684 kg ha<sup>−1</sup>) and essential oil yield (27.3 L ha<sup>−1</sup>) were obtained from plants sown on 15th October and treated with 5 kg ha<sup>−1</sup> HA. Moreover, the essential oil composition was notably affected, with significant increases in the concentration of anethole, estragole, and other critical compounds under the same treatment. Conversely, delayed sowing reduced both the yield and oil content. These findings highlight the importance of optimizing sowing dates and HA application rates to maximize fennel’s yield and essential oil quality, particularly in arid regions. The findings of this study offer practical guidance for optimizing fennel cultivation in arid regions by integrating early sowing dates and humic acid applications, which can significantly enhance yield and essential oil quality. These insights are particularly valuable for the medicinal and aromatic plant industries, supporting sustainable agriculture and improving the commercial viability of fennel production under climate-challenged conditions.https://www.mdpi.com/2311-7524/11/1/18sowing datehumic acidfennelclimate changesustainable agriculture |
| spellingShingle | Ahmed Samy Said S. Soliman Sayed S. A. Abdel-Rahman Wagdi S. Soliman Ahmed M. Abbas Influence of Sowing Date and Humic Acid Application on <i>Foeniculum vulgare</i> Mill. Growth, Yield, and Essential Oil Composition Horticulturae sowing date humic acid fennel climate change sustainable agriculture |
| title | Influence of Sowing Date and Humic Acid Application on <i>Foeniculum vulgare</i> Mill. Growth, Yield, and Essential Oil Composition |
| title_full | Influence of Sowing Date and Humic Acid Application on <i>Foeniculum vulgare</i> Mill. Growth, Yield, and Essential Oil Composition |
| title_fullStr | Influence of Sowing Date and Humic Acid Application on <i>Foeniculum vulgare</i> Mill. Growth, Yield, and Essential Oil Composition |
| title_full_unstemmed | Influence of Sowing Date and Humic Acid Application on <i>Foeniculum vulgare</i> Mill. Growth, Yield, and Essential Oil Composition |
| title_short | Influence of Sowing Date and Humic Acid Application on <i>Foeniculum vulgare</i> Mill. Growth, Yield, and Essential Oil Composition |
| title_sort | influence of sowing date and humic acid application on i foeniculum vulgare i mill growth yield and essential oil composition |
| topic | sowing date humic acid fennel climate change sustainable agriculture |
| url | https://www.mdpi.com/2311-7524/11/1/18 |
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