SEED ECOLOGY III The Third International Society for Seed Science Meeting on Seeds and the Environment “Seeds and Change” Conference Proceedings June 20 to June 24, 2010 Salt Lake City, Utah, USA Editors: R. Pendleton, S. Meyer, B. Schultz Proceedings of the Seed Ecology III Conference Preface Extended abstracts included in this proceedings will be made available online. Enquiries and requests for hardcopies of this volume should be sent to: Dr. Rosemary Pendleton USFS Rocky Mountain Research Station Albuquerque Forestry Sciences Laboratory 333 Broadway SE Suite 115 Albuquerque, New Mexico, USA 87102-3497 The extended abstracts in this proceedings were edited for clarity. Seed Ecology III logo designed by Bitsy Schultz. i June 2010, Salt Lake City, Utah Proceedings of the Seed Ecology III Conference Table of Contents Germination Ecology of Dry Sandy Grassland Species along a pH-Gradient Simulated by Different Aluminium Concentrations.....................................................................................................................1 M Abedi, M Bartelheimer, Ralph Krall and Peter Poschlod Induction and Release of Secondary Dormancy under Field Conditions in Bromus tectorum.......................2 PS Allen, SE Meyer, and K Foote Seedling Production for Purposes of Biodiversity Restoration in the Brazilian Cerrado Region Can Be Greatly Enhanced by Seed Pretreatments Derived from Seed Technology......................................................4 S Anese, GCM Soares, ACB Matos, DAB Pinto, EAA da Silva, and HWM Hilhorst Epicotyl Dormancy – Revisited..............................................................................................................................6 CC Baskin and JM Baskin Effect of Inbreeding Depression and Population Size on Seed Germination: A Review..................................8 JM Baskin and CC Baskin Effect of Fire on a Seed Bank Pathogen and on Seeds of Its Host, Bromus tectorum...................................10 J Beckstead, SE Meyer, LE Street and PS Allen Modeling and Predicting Changes in Dormancy in Soil Seed Banks...............................................................12 RL Benech-Arnold and D Batlla Variation in Germination and Nursery Performance of Prunus africana and Hagenia abyssinica Populations in Ethiopia.........................................................................................................................................14 BA Betremariam Stream Flow, Seed Suspension, and Seasonality: Hydrochory in a Semi-arid Stream, Verde River, Arizona, USA.........................................................................................................................................................................15 J Betsch, J Stromberg and D Setaro Maturity, Germination and Longevity Studies in a Narrow Endemic Columbine in the Italian Alps (Aquilegia thalictrifolia Scott et Kotschy)...........................................................................................................16 C Bonomi, A Mondoni, M Bolognesi and E Bortoluzzi Seed Ecology of Australian Rutaceae.................................................................................................................18 H Bowers, S Turner, D Merritt, B Tan and K Dixon Does Cattle Dung Cause Differences in the Germination Response of Grazing Increasers vs Decreasers?...........................................................................................................................................................20 CP Carmona, FM Azcárate and B Peco Effects of Light and Temperature on Seed Germination of Ficus spp. from Two Contrasting Tropical Microhabitats.........................................................................................................................................................22 H Chen and M Cao Effect of the Acorn Pericarp on Germination of Pasania konishii (Fagaceae)................................................24 S-Y Chen Seed Dormancy and Germination of Cycas taitungensis (Cycadaceae)..........................................................26 C-T Chien Restoring the Desert: Using Seed Ecological Information to Restore Arid-zone Mines................................28 LE Commander, DJ Merritt and KW Dixon Germination and Field Survival of Sarracenia leucophylla Seeds...................................................................30 K Connor and H Gibbs The Effect of Scarification and Stratification Treatments on the Germination of Danthonia californica Seed from Three Populations........................................................................................................................................32 DC Darris Where Dispersal Meets Dormancy: “Hard” Seed Dispersal by Herbivorous Mammals.................................34 B D’hondt, M Hoffmann Does Ethylene Play Some Role in the Germination Enhancement of Clustered Reseda complicata Seeds?....................................................................................................................................................................36 M. Díaz-Miguel Predicting Optimum Germination Conditions for Wild Species Stored in Seed Banks……………………….38 JB Dickie, RJ Probert, K Liu and L Robb Interactions Across Seed and Adult Life Stages: Ecological and Evolutionary Consequences...................40 K Donohue The Use of Agricultural Direct Drill Tynes to Improve Direct Seeding Results in Revegetation Using Australian Native Tree and Shrub Seeds............................................................................................................41 M Driver, M Zeschke, R Ellis and M Taylor Effects of Seed Storage on Germination of Two Succulent Desert Halophytes with Little Dormancy and Short-lived Seeds..................................................................................................................................................43 A El-Keblawy Seed Dormancy, Persistence, and Germination Response Inform Restoration Capability in a Biodiverse Semi-arid Zone Ecoregion...................................................................................................................................45 TE Erickson, DJ Merritt, SR Turner, PJ Ainsley and KW Dixon Haplotype Variation for a Major Seed Dormancy Gene-Containing Region in the Lineage of Wild, Weedy, and Cultivated Rice................................................................................................................................................47 June 2010, Salt Lake City, Utah ii Proceedings of the Seed Ecology III Conference J Feng and X-Y Gu Relationship between Climate and Seed Germination at a Local Scale in a Narrow Endemic Species.......49 E Fernández-Pascual, B Jiménez-Alfaro, TE Díaz-González and F Pérez-García Seed Biology and Germination of the Basal Angiosperm Amborella trichopoda...........................................51 B Fogliani, N Klein, G Gâteblé and C Scutt Dormancy Cycling of Brassicaceae Species in the Field: Impact of Thermal Gradients and Nitrate on Seeds During Annual Cycles................................................................................................................................53 S Footitt, H Clay, K Dent, A Mead and W Finch-Savage Arabidopsis Dormancy in the Field: a Molecular-physiological Analysis Uncovers New Dormancy Cycling Behavior.................................................................................................................................................................55 S Footitt, H Őlçer-Footitt, ID Soler, H Clay, K Dent and W Finch-Savage Pigmentation and Symbiosis: Seed Properties and Their Implications for Platanthera praeclara (Orchidaceae).........................................................................................................................................................57 MM From Comparative Genetics of Seed Dormancy between Tropical and Temperate Ecotypes of Weedy Rice.......59 X-Y Gu, L Zhang, J Feng and M E Foley Evaluation of Reproductive Success in Senecio coincyi Rouy, a Threatened Species from Spain………...61 S Guerrero-García, F Martínez-García, V Martínez-Fernández and F Pérez-García Oceanic Dispersal: Can Seeds Really Float, Survive, and Germinate?...........................................................63 LK Guja, DJ Merritt, G Wardell-Johnson and KW Dixon Bromus tectorum: Variation in Seed Dormancy Among Populations..............................................................65 DN Harmon, C Clements and M Clark Does an Increase in the Duration of Cold Stratification Have an Effect on the Germination of Eucalyptus nitens H. Deane & Maiden and Three Other Victorian Eucalypt Species?.......................................................67 MJ Hirst, CR Nitschke, NG Walsh and SK Arndt Seed Surface Structure in Central European Species.......................................................................................68 C Hoppe and O Tackenberg Australian Alpine Seeds and Seedlings: Can They Cope with Change?.........................................................70 G Hoyle, A Nicotra, K Steadman and R Good Cyclic Sensitivity Patterns in Seeds with Physical Dormancy..........................................................................72 KMGG Jayasuriya An Evaluation of Seed Scarification Methods of Four Native Lupinus Species..............................................74 CD Jones, SL Jensen, and MR Stevens Seasonal Sporulation-Revealed Complexity in Life Cycles of Norway Spruce Cone Rusts………………….76 J Kaitera, E Tillman-Sutela and A Kauppi