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Reliable Method for Assessing Seed Germination, Dormancy, and Mortality under Field Conditions
Published on: November 6, 2016
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A Weibull distribution-based method for estimating seed longevity in Solanum rostratum.
Zhili Yuan1, Weidong Fu1, Zhen Song1
1Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, China.
Frontiers in Plant Science
|March 16, 2026
Summary
Weed management strategies can be improved by understanding invasive seed bank longevity. Solanum rostratum seeds persist for approximately 8-9.79 years, highlighting the need for effective control measures.
Area of Science:
- Ecology
- Invasive Species Biology
- Plant Science
Background:
- Seed longevity is critical for invasive plant population dynamics and spread.
- Efficient methods for assessing seed bank longevity in annual invasive plants are scarce.
- Solanum rostratum is a globally significant invasive annual plant.
Purpose of the Study:
- To investigate the seed longevity of Solanum rostratum using accelerated aging tests.
- To develop and apply a reliable method for estimating seed bank persistence in invasive annual plants.
- To provide a framework for assessing invasion risks and informing weed management strategies.
Main Methods:
- Accelerated aging tests were conducted at 60°C and 85% relative humidity.
- A three-parameter Weibull distribution model was used to characterize seed aging.
- Seed viability was assessed through germination tests and polynomial regression analysis.
Main Results:
- Solanum rostratum seeds rapidly lost viability within 3 days under accelerated aging conditions.
- Interannual variations significantly affected seed aging patterns, while regional differences showed similar aging.
- Estimated seed longevity under natural conditions ranged from approximately 8 to 9.79 years.
Conclusions:
- Combining accelerated aging assays with Weibull distribution modeling offers an effective approach for assessing seed longevity.
- Persistent seed banks play a crucial role in the invasion success of Solanum rostratum.
- The developed modeling framework can be extended to other annual invasive plants for seed viability assessment and risk evaluation.
Keywords:
invasive weed managementlongevity modelingpersistent seed bankseed-bank regulationviability declineMore Related Videos
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