Regenerative Potential and Emergence of Sticky Nightshade (Solanum sisymbriifolium Lam): Implications for Weed Management | Md Shoriful Islam
Tracks
| Tuesday, August 5, 2025 |
| 4:10 PM - 4:30 PM |
| Miconia Room |
Speaker
Mr Md Shoriful Islam
PhD Student
Gulbali Institute, Charles Sturt University
Regenerative Potential and Emergence of Sticky Nightshade (Solanum sisymbriifolium Lam): Implications for Weed Management | Md Shoriful Islam
Abstract
Title: Regenerative Potential and Emergence of Sticky Nightshade (Solanum sisymbriifolium Lam): Implications for Weed Management
Abstract: Sticky nightshade is a perennial weed species with a multi-stemmed growth habit. This exotic species was accidentally introduced to Australia in 1920 and has since spread across various regions, competing with crops and pastures. The species' ability to regenerate from root and stem fragments has the potential to exacerbate its spread. Despite such challenges, limited information regarding its germination and regenerative capabilities is available. This study aimed to evaluate the role of root and stem fragment regeneration and seed emergence at varying soil burial depths in the spread of sticky nightshade. Glasshouse experiments were conducted to investigate the seed germination ability buried at five soil depths (0, 2.5, 5, 7.5, and 10 cm) and regenerative capacity of the root and stem fragments (1, 2.5, 5, and 10 cm) buried at three soil depths (2.5, 5, and 10 cm). Results showed that seed emergence of S. sisymbriifolium was highest (70%) at 2.5 cm depth, with limited emergence (20%) at 10 cm. Regeneration from root fragments occurred with pieces as small as 1 cm, except when buried at 10 cm. For stem fragments, regeneration was observed only from 5 cm and 10 cm pieces, with no shoot development from 1 cm or 2.5 cm fragments. Overall, shoot development from both root and stem fragments declined with increasing burial depth. These findings enhance our understanding of sticky nightshade emergence and regenerative potential, providing valuable insights for developing more effective and sustainable integrated weed management strategies to control this weed.
Keywords: Invasive species, emergence, vegetative propagation, burial depth.
Abstract: Sticky nightshade is a perennial weed species with a multi-stemmed growth habit. This exotic species was accidentally introduced to Australia in 1920 and has since spread across various regions, competing with crops and pastures. The species' ability to regenerate from root and stem fragments has the potential to exacerbate its spread. Despite such challenges, limited information regarding its germination and regenerative capabilities is available. This study aimed to evaluate the role of root and stem fragment regeneration and seed emergence at varying soil burial depths in the spread of sticky nightshade. Glasshouse experiments were conducted to investigate the seed germination ability buried at five soil depths (0, 2.5, 5, 7.5, and 10 cm) and regenerative capacity of the root and stem fragments (1, 2.5, 5, and 10 cm) buried at three soil depths (2.5, 5, and 10 cm). Results showed that seed emergence of S. sisymbriifolium was highest (70%) at 2.5 cm depth, with limited emergence (20%) at 10 cm. Regeneration from root fragments occurred with pieces as small as 1 cm, except when buried at 10 cm. For stem fragments, regeneration was observed only from 5 cm and 10 cm pieces, with no shoot development from 1 cm or 2.5 cm fragments. Overall, shoot development from both root and stem fragments declined with increasing burial depth. These findings enhance our understanding of sticky nightshade emergence and regenerative potential, providing valuable insights for developing more effective and sustainable integrated weed management strategies to control this weed.
Keywords: Invasive species, emergence, vegetative propagation, burial depth.
Biography
I am Md. Shoriful Islam, a PhD student at the School of Agricultural, Environmental, and Veterinary Sciences, Charles Sturt University. I hold a Master of Science in Agricultural Botany and a Bachelor of Science in Agriculture (Hons.) from Sher-e-Bangla Agricultural University, Bangladesh. Before joining the PhD program, I served as an Assistant Professor at Sher-e-Bangla Agricultural University. My research focuses on plant biology, physiology, and crop management. Throughout my academic career, I have been honored with several awards and fellowships in recognition of my research contributions, and I have published my findings in various national and international journals.
