We have some results for two species that were stored in paper bags or envelopes at room temperature. We had seeds collected each year for ten years from the same population. Erigeron decumbens and Abronia umbellata ssp. breviflora had very little loss in viability after ten years. Happy to share the underlying data. –Tom
RSABG has a lot of follow-up germination data for our rare seed collections. Our germination data is actually available on our website http://www.rsabg.org on the Seed Conservation page as an excel doc download. We would be very interested in seeing an analysis that includes our data! Let me know if there is anything I can do to help with this!
yes, we submitted info a few years back to CPC about germination tests for Chloris texensis, Hymenoxys texana and Rayjacksonia aurea. The frequency of our germination testing will be increasing with the addition of staff. On this year’s poster, I reported that germination trials conducted in 2018 by doctoral candidate Eric LoPresti at UC Davis produced the Abronia macrocarpa plants shown in the poster. The seeds tested germinated at 76%. The accession used for LoPresti’s research had been prepared and frozen for long-term storage at Mercer Botanic Gardens in 1974.