Thermal thresholds for seed dormancy release and germination are important tools for predicting germination timing. Orrù et al. study germination in seeds of Vitis vinifera subsp. sylvestris collected from four populations from between 100 and 800 m above sea level and apply a thermal-time approach to the results. They find that base temperature for germination and thermal time requirement for 50 % germination explain the differences detected among populations. Modelling of the seed responses according to present climate conditions and two future predicted scenarios identifies an altitude-related risk from climate warming, with lowland populations being more threatened due to a compromised seed dormancy release and a narrowed seed germination window.
- Next story A bit of warmth and we all go bananas!?
- Previous story Interphase-mitotic cell nuclei in Allium
Subscribe via Email
agriculture Annals of Botany Arabidopsis Arabidopsis thaliana Biodiversity Blogging Botany carnivorous plants Climate change Conservation development domestication Drought Ecology education Evolution flow cytometry food food security freeaccess genetics germination hybridization IBC11 IBC18 Latest Articles New Phytologist nitrogen orchids phosphorus Photosynthesis phylogeny Plant Biology plants Plant Science PNAS pollen Pollination polyploidy Rice Science science communication Taxonomy video wheat
New in Annals of Botany