Seed Germination and Dormancy Ecology

Seed germination and dormancy ecology examines how seeds transition from a quiescent state to active growth, and how they delay that transition until environmental conditions are favourable. Dormancy mechanisms are pivotal for synchronising germination with optimal temperature, moisture and light regimes, thereby maximising seedling survival. These mechanisms range from physical barriers in the seed coat to physiological controls mediated by hormones such as abscisic acid and gibberellin. Dormancy classes—including physiological, physical, combinational, morphological and morphophysiological—reflect diverse adaptive strategies that allow plants to spread germination over space and time, reducing risk in variable environments. Seed banks, both in soil and in ex situ collections, act as ecological and conservation reservoirs, preserving genetic diversity and buffering populations against disturbance and climate extremes. Recent advances integrate ecophysiological experiments, modelling of germination responses to temperature and water potential, and molecular analyses to elucidate dormancy cycling in the soil seed bank. This work underpins restoration and agricultural practices by informing seed storage protocols, species selection for restoration projects and predictive models of community composition under global change.

Research from Nature Portfolio

No recent Nature Portfolio content available.

Seed Germination and Dormancy Ecology publication trend

The graph below shows the total number of articles in seed germination and dormancy ecology across all publications each year (not limited to Nature Index journals).

Technical terms

Dormancy: A reversible state in which seeds are prevented from germinating under otherwise favourable conditions.

Afterripening: The physiological process by which seeds lose dormancy during dry storage at moderate temperatures.

Physiological dormancy: A dormancy class governed by internal hormonal and metabolic controls that require specific environmental signals to be broken.

Secondary dormancy: A form of induced dormancy that occurs when nondormant seeds re-enter a dormant state in response to unfavourable conditions.

Seed bank: The reservoir of viable seeds in soil or in storage facilities that maintains species diversity and supports population resilience.

References

1. Breaking Seed Dormancy during Dry Storage: A Useful Tool or Major Problem for Successful Restoration via Direct Seeding?. Plants (2020).
2. Dormancy and germination: making every seed count in restoration. Restoration Ecology (2020).
3. Advances in seed conservation of wild plant species: a review of recent research. Conservation Physiology (2013).
4. Determination of Germination Response to Temperature and Water Potential for a Wide Range of Cover Crop Species and Related Functional Groups. PLOS ONE (2016).
5. Seed germination responses to seasonal temperature and drought stress are species‐specific but not related to seed size in a desert steppe: Implications for effect of climate change on community structure. Ecology and Evolution (2019).
6. Regulation of Seed Dormancy and Germination Mechanisms in a Changing Environment. International Journal of Molecular Sciences (2021).
7. Environment sensing in spring‐dispersed seeds of a winter annual Arabidopsis influences the regulation of dormancy to align germination potential with seasonal changes. New Phytologist (2014).
8. Trade‐off between seed dispersal in space and time. Ecology Letters (2020).