Allelopathic Potential of <i>Nicotiana glauca</i> Aqueous Extract on Seed Germination and Seedlings of <i>Acacia gerrardii</i>
<i>Nicotian glauca</i> is a noxious invasive shrub in Saudi Arabia, and it is well known for its harmful impact on biodiversity, competing with native plants using various strategies. Among their strategies is their allelochemical activity, i.e., the use of chemicals to dominate and comp...
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MDPI AG
2023-12-01
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| Online Access: | https://www.mdpi.com/1424-2818/16/1/26 |
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| author | Abdelmalik M. Abdelmalik Thobayet S. Alshahrani Abdulaziz A. Alqarawi Eljaily M. Ahmed |
| author_facet | Abdelmalik M. Abdelmalik Thobayet S. Alshahrani Abdulaziz A. Alqarawi Eljaily M. Ahmed |
| author_sort | Abdelmalik M. Abdelmalik |
| collection | DOAJ |
| description | <i>Nicotian glauca</i> is a noxious invasive shrub in Saudi Arabia, and it is well known for its harmful impact on biodiversity, competing with native plants using various strategies. Among their strategies is their allelochemical activity, i.e., the use of chemicals to dominate and compete. The present study aims to evaluate the allelopathic potential of <i>N. glauca</i> aqueous extracts from leaves, flowers, and twigs on <i>Acacia gerrardi</i> seed germination and seedling growth. Petri dishes containing extracts from <i>N. glauca</i> parts with different concentrations were incubated in a growth chamber. The results indicated that extracts and concentrations negatively impact seed germination and hypocotyl. Relative to the control, the leaf extract with concentrations of 60 and 100 g/L reduced the seed germination rate by 81.11% and 93.33%, respectively. Flower extracts of similar concentrations decreased germination by 81.91 and 92.55%, while the twig extracts declined germination by 79.56 and 95.69%, respectively. The leaf, flower, and twig extracts (100 g/L) decreased hypocotyl radicle by 76.54, 78.05, and 65.75%, respectively. Overall, the concentrations of 20, 60, and 100 g/L showed the lowest growth indices. Generally, aqueous extracts, particularly 100 g/L, impacted the germination and protrusion of <i>A. gerrardii</i> hypocotyl. In conclusion, our study draws attention to the harmful impact of <i>N. glauca</i> on <i>A. gerrardii</i> regeneration. |
| first_indexed | 2024-03-08T11:00:17Z |
| format | Article |
| id | doaj.art-8c1e229a9f3e4746a04e326f30199a0b |
| institution | Directory Open Access Journal |
| issn | 1424-2818 |
| language | English |
| last_indexed | 2024-03-08T11:00:17Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Diversity |
| spelling | doaj.art-8c1e229a9f3e4746a04e326f30199a0b2024-01-26T16:04:49ZengMDPI AGDiversity1424-28182023-12-011612610.3390/d16010026Allelopathic Potential of <i>Nicotiana glauca</i> Aqueous Extract on Seed Germination and Seedlings of <i>Acacia gerrardii</i>Abdelmalik M. Abdelmalik0Thobayet S. Alshahrani1Abdulaziz A. Alqarawi2Eljaily M. Ahmed3Department of Plant Production, Faculty of Food and Agriculture Science, King Saud University, Riyadh 12215, Saudi ArabiaDepartment of Plant Production, Faculty of Food and Agriculture Science, King Saud University, Riyadh 12215, Saudi ArabiaDepartment of Plant Production, Faculty of Food and Agriculture Science, King Saud University, Riyadh 12215, Saudi ArabiaDepartment of Plant Production, Faculty of Food and Agriculture Science, King Saud University, Riyadh 12215, Saudi Arabia<i>Nicotian glauca</i> is a noxious invasive shrub in Saudi Arabia, and it is well known for its harmful impact on biodiversity, competing with native plants using various strategies. Among their strategies is their allelochemical activity, i.e., the use of chemicals to dominate and compete. The present study aims to evaluate the allelopathic potential of <i>N. glauca</i> aqueous extracts from leaves, flowers, and twigs on <i>Acacia gerrardi</i> seed germination and seedling growth. Petri dishes containing extracts from <i>N. glauca</i> parts with different concentrations were incubated in a growth chamber. The results indicated that extracts and concentrations negatively impact seed germination and hypocotyl. Relative to the control, the leaf extract with concentrations of 60 and 100 g/L reduced the seed germination rate by 81.11% and 93.33%, respectively. Flower extracts of similar concentrations decreased germination by 81.91 and 92.55%, while the twig extracts declined germination by 79.56 and 95.69%, respectively. The leaf, flower, and twig extracts (100 g/L) decreased hypocotyl radicle by 76.54, 78.05, and 65.75%, respectively. Overall, the concentrations of 20, 60, and 100 g/L showed the lowest growth indices. Generally, aqueous extracts, particularly 100 g/L, impacted the germination and protrusion of <i>A. gerrardii</i> hypocotyl. In conclusion, our study draws attention to the harmful impact of <i>N. glauca</i> on <i>A. gerrardii</i> regeneration.https://www.mdpi.com/1424-2818/16/1/26invasive plantshypocotylconcentrationsgermination indicesgrowth |
| spellingShingle | Abdelmalik M. Abdelmalik Thobayet S. Alshahrani Abdulaziz A. Alqarawi Eljaily M. Ahmed Allelopathic Potential of <i>Nicotiana glauca</i> Aqueous Extract on Seed Germination and Seedlings of <i>Acacia gerrardii</i> Diversity invasive plants hypocotyl concentrations germination indices growth |
| title | Allelopathic Potential of <i>Nicotiana glauca</i> Aqueous Extract on Seed Germination and Seedlings of <i>Acacia gerrardii</i> |
| title_full | Allelopathic Potential of <i>Nicotiana glauca</i> Aqueous Extract on Seed Germination and Seedlings of <i>Acacia gerrardii</i> |
| title_fullStr | Allelopathic Potential of <i>Nicotiana glauca</i> Aqueous Extract on Seed Germination and Seedlings of <i>Acacia gerrardii</i> |
| title_full_unstemmed | Allelopathic Potential of <i>Nicotiana glauca</i> Aqueous Extract on Seed Germination and Seedlings of <i>Acacia gerrardii</i> |
| title_short | Allelopathic Potential of <i>Nicotiana glauca</i> Aqueous Extract on Seed Germination and Seedlings of <i>Acacia gerrardii</i> |
| title_sort | allelopathic potential of i nicotiana glauca i aqueous extract on seed germination and seedlings of i acacia gerrardii i |
| topic | invasive plants hypocotyl concentrations germination indices growth |
| url | https://www.mdpi.com/1424-2818/16/1/26 |
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