germination Archives - Center for Plant Conservation

When Do We Regenerate Conservation Seed Collections? Integrating Lessons From CPC Seed Longevity Study into Best Practices

In this presentation we will explore the ecological correlates of germination and RNA based metrics of seed longevity uncovered for through CPC’s 4-year IMLS funded seed longevity study. We evaluate the importance of planning re-collection or regeneration intervals that match a species predicted longevity. We highlight specific functional groups and regions where these intervals may […]

From Prediction to Propagation: Modeling Seed Longevity and Enhancing Germination for Conservation

Seed conservation plays a critical role in safeguarding plant biodiversity, particularly for rare and endangered species with limited seed availability. This presentation explores two complementary approaches to optimizing ex situ seed conservation: modeling seed longevity using probit analysis and enhancing germination through embryo excision. Probit analysis has long been used to model seed viability loss […]

Germination Requirements of Lythrum curtissii

Lythrum curtissii is a perennial herb endemic to southwest Georgia, the Florida Panhandle, and northeast Florida. The species is imperiled throughout its range: it is ranked S1 in Georgia, S2 in Florida, and G2 globally. The Jones Center at Ichauway has collected seeds from multiple populations of Lythrum curtissii since 2019 but had achieved little […]

Understanding Seed Dormancy and Germination Requirements of Rare Plants

Restoration efforts are often challenged by a lack of knowledge regarding seed dormancy and germination requirements. These same factors can impede seed longevity monitoring in seed banks and other conservation initiatives for rare plants. Seed dormancy is defined as “the incapacity of a viable seed to germinate under favorable conditions.” Dormant seeds may not look […]

Identifying Drivers of Orchid Population Dynamics: An Example in the Federally-Listed Threatened Orchid, Isotria medeoloides

Screenshot of Identifying Drivers of Orchid Population Dynamics video.

Melissa K. McCormick, Dennis F. Whigham, Rachel Rock-Blake, Hope E.A. Brooks North American Orchid Conservation Center (NAOCC) and Smithsonian Environmental Research Center (SERC) Orchids are widely threatened and endangered worldwide, but efforts to conserve and restore them has been limited by not knowing about the pollinators and fungi they need to grow and reproduce. The […]

Reproductive Ecology of a Rare Florida Endemic Mint, Macbridea alba

Brenda Molano-Flores, Illinois Natural History Survey, University of Illinois: Urbana-Champaign, Sara Johnson, Department of Natural Resources and Environmental Science at University of Illinois: Urbana-Champaign, & Janice Coons, Eastern Illinois University Macbridea alba (Lamiaceae) is a federally threatened and state endangered perennial herbaceous mint. It is endemic to grassy pine flat woods and occupies a range […]

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