Wild pea seed dormancy is mediated by a water-impermeable seed coat. Using wild and domesticated pea (Pisum elatius, P. humile and P. fulvum), Abbo et al. show that the agronomic implications of wild pea hard-seededness are incompatible with millennia of unconscious selection leading to domestication: poor establishment and associated net yield loss in cultivation is likely to have resulted in abandonment of the species, rather than continued unprofitable cultivation.
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Plants have evolved the ability to germinate in salty soils multiple times, in a case of convergent evolution
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Fossils of Eocene palm trees near the Arctic Circle reveal a heated past
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