Osmotic and salinity effects on germination

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Osmotic and salinity effects on germination
Osmotic and salinity effects on germination

Seeds in saline environments face a dilemma between allocating reserves to either osmotic balance or growth and development.  Zhang et al. show that barley seeds incubated in saline solutions germinate more rapidly than seeds in iso-osmotic PEG solutions. This suggests that barley seeds use salt as a metabolically cheap cellular osmotica, facilitating rapid germination under moderately saline conditions.


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