Biochemical and yield response of spring wheat to drought stress through gibberellic and abscisic acids
Abstract Drought stress significantly impacts wheat productivity, but plant growth regulators may help mitigate these effects. This study examined the influence of gibberellic acid (GA3) and abscisic acid (ABA) on wheat (Triticum aestivum L., CV: Giza 171) growth and yield under different water regi...
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2025-01-01
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| Series: | BMC Plant Biology |
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| Online Access: | https://doi.org/10.1186/s12870-024-05879-8 |
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| author | Sobhi F. Lamlom Ahmed M. Abdelghany A. S. Farouk E. Sh. Alwakel Khaled M. Makled Najat A. Bukhari Ashraf Atef Hatamleh Honglei Ren Gawhara A. El-Sorady A. A. Shehab |
| author_facet | Sobhi F. Lamlom Ahmed M. Abdelghany A. S. Farouk E. Sh. Alwakel Khaled M. Makled Najat A. Bukhari Ashraf Atef Hatamleh Honglei Ren Gawhara A. El-Sorady A. A. Shehab |
| author_sort | Sobhi F. Lamlom |
| collection | DOAJ |
| description | Abstract Drought stress significantly impacts wheat productivity, but plant growth regulators may help mitigate these effects. This study examined the influence of gibberellic acid (GA3) and abscisic acid (ABA) on wheat (Triticum aestivum L., CV: Giza 171) growth and yield under different water regimes. Using a split-plot design, we tested three drought levels as main plots: normal irrigation (80% field capacity), moderate drought (60% field capacity), and severe drought (40% field capacity). Subplots consisted of GA3 and ABA treatments at 100 and 200 ppm concentrations. Results showed that 200 ppm GA3 treatment enhanced multiple growth parameters under normal irrigation, including plant height (25–30% increase), leaf area (30–35% increase), and reproductive traits (40% increase in number of number of spikes, 35% increase in grains per spike). In contrast, ABA treatment at 200 ppm resulted in reduced plant height (35% decrease) and greater leaf area reduction (40% vs. 20% in control) under drought conditions. GA3 at 200 ppm also improved physiological parameters including catalase and superoxide dismutase activities, protein content, and proline accumulation. These findings demonstrate the distinct roles of GA3 and ABA in regulating wheat growth and stress responses, providing valuable insights for drought management in wheat cultivation. |
| format | Article |
| id | doaj-art-fd8d2f308ab5404796b09c11272b5de5 |
| institution | Kabale University |
| issn | 1471-2229 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Plant Biology |
| spelling | doaj-art-fd8d2f308ab5404796b09c11272b5de52025-01-05T12:13:00ZengBMCBMC Plant Biology1471-22292025-01-0125111210.1186/s12870-024-05879-8Biochemical and yield response of spring wheat to drought stress through gibberellic and abscisic acidsSobhi F. Lamlom0Ahmed M. Abdelghany1A. S. Farouk2E. Sh. Alwakel3Khaled M. Makled4Najat A. Bukhari5Ashraf Atef Hatamleh6Honglei Ren7Gawhara A. El-Sorady8A. A. Shehab9Plant Production Department, Faculty of Agriculture Saba Basha, Alexandria UniversityCrop Science Department, Faculty of Agriculture, Damanhour UniversityAgronomy Department, Faculty of Agriculture, Al-Azhar UniversityAgronomy Department, Faculty of Agriculture, Al-Azhar UniversityAgronomy Department, Faculty of Agriculture, Al-Azhar UniversityDepartment of Botany and Microbiology, College of Science, King Saud UniversityDepartment of Botany and Microbiology, College of Science, King Saud UniversityHeilongjiang Academy of Agricultural Sciences, Soybean Research InstitutePlant Production Department, Faculty of Agriculture Saba Basha, Alexandria UniversityAgronomy Department, Faculty of Agriculture, Al-Azhar UniversityAbstract Drought stress significantly impacts wheat productivity, but plant growth regulators may help mitigate these effects. This study examined the influence of gibberellic acid (GA3) and abscisic acid (ABA) on wheat (Triticum aestivum L., CV: Giza 171) growth and yield under different water regimes. Using a split-plot design, we tested three drought levels as main plots: normal irrigation (80% field capacity), moderate drought (60% field capacity), and severe drought (40% field capacity). Subplots consisted of GA3 and ABA treatments at 100 and 200 ppm concentrations. Results showed that 200 ppm GA3 treatment enhanced multiple growth parameters under normal irrigation, including plant height (25–30% increase), leaf area (30–35% increase), and reproductive traits (40% increase in number of number of spikes, 35% increase in grains per spike). In contrast, ABA treatment at 200 ppm resulted in reduced plant height (35% decrease) and greater leaf area reduction (40% vs. 20% in control) under drought conditions. GA3 at 200 ppm also improved physiological parameters including catalase and superoxide dismutase activities, protein content, and proline accumulation. These findings demonstrate the distinct roles of GA3 and ABA in regulating wheat growth and stress responses, providing valuable insights for drought management in wheat cultivation.https://doi.org/10.1186/s12870-024-05879-8Antioxidant activitiesDrought stressPlant growth regulatorsReactive oxygen species (ROS) |
| spellingShingle | Sobhi F. Lamlom Ahmed M. Abdelghany A. S. Farouk E. Sh. Alwakel Khaled M. Makled Najat A. Bukhari Ashraf Atef Hatamleh Honglei Ren Gawhara A. El-Sorady A. A. Shehab Biochemical and yield response of spring wheat to drought stress through gibberellic and abscisic acids BMC Plant Biology Antioxidant activities Drought stress Plant growth regulators Reactive oxygen species (ROS) |
| title | Biochemical and yield response of spring wheat to drought stress through gibberellic and abscisic acids |
| title_full | Biochemical and yield response of spring wheat to drought stress through gibberellic and abscisic acids |
| title_fullStr | Biochemical and yield response of spring wheat to drought stress through gibberellic and abscisic acids |
| title_full_unstemmed | Biochemical and yield response of spring wheat to drought stress through gibberellic and abscisic acids |
| title_short | Biochemical and yield response of spring wheat to drought stress through gibberellic and abscisic acids |
| title_sort | biochemical and yield response of spring wheat to drought stress through gibberellic and abscisic acids |
| topic | Antioxidant activities Drought stress Plant growth regulators Reactive oxygen species (ROS) |
| url | https://doi.org/10.1186/s12870-024-05879-8 |
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