Projects per year
Abstract
Extruded pellets containing activated carbon (AC) can be used to sow native seeds while simultaneously applying herbicide to control invasive species. Incorporating AC in pellets has been demonstrated to protect native seeds; however, there may be unintended detrimental impacts to seedling emergence. We aimed to optimize seed position within pellets to maximize emergence and survival of the perennial shrub Jacksonia furcellata. Seeds were positioned at 2 mm (top), 6 mm (middle), and 12 mm (bottom) within pellets (with or without AC), sown on or below the soil surface, and compared to non-pelleted seeds sown under the soil surface in the equivalent positions (2, 6, and 12 mm depth). Trays were treated with a pre-emergent herbicide (Simazine) or left unsprayed. Emergence (without herbicide) was significantly higher from seeds positioned at the bottom of pellets without AC sown on the soil surface (70%), compared to non-pelleted seeds sown at the bottom (12 mm below the soil surface; 57%). However, emergence was inhibited when seeds were positioned in the middle (6 mm) of pellets with AC (32%). When treated with Simazine, survival was highest from seeds positioned at the bottom of pellets with AC (60%), compared to pellets without AC (15%) and non-pelleted seeds sown at the bottom (12 mm below the soil surface; 15%). Jacksonia furcellata seeds positioned at the bottom of pellets, sown on the soil surface, shows promise to minimize negative impacts to emergence, and maximize herbicide protection. Further testing with additional species is required to refine pellet production (e.g. recipe, extrusion, and shape) for optimal emergence.
Original language | English |
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Article number | e13784 |
Number of pages | 8 |
Journal | Restoration Ecology |
Volume | 31 |
Issue number | 1 |
Early online date | 23 Sept 2022 |
DOIs | |
Publication status | Published - Jan 2023 |
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Dive into the research topics of 'Seed positioning in extruded pellets: does it matter?'. Together they form a unique fingerprint.Projects
- 1 Finished
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Innovative seed technologies for restoration in a biodiversity hotspot
Hobbs, R. (Chief Investigator), Erickson, T. (Chief Investigator), Stevens, J. (Chief Investigator), Madsen, M. (Chief Investigator), Forster, M. (Chief Investigator), Newton, V. (Chief Investigator), Pekin, A. (Chief Investigator) & Savage, A. (Chief Investigator)
ARC Australian Research Council
1/01/18 → 31/12/22
Project: Research
Research output
- 10 Citations
- 1 Doctoral Thesis
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Novel seed enhancement technologies to improve restoration success
Brown, V., 2023, (Unpublished)Research output: Thesis › Doctoral Thesis
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