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Factorial laboratory germination experiments were carried out on fruits from 10 British species of Potamogeton (Potamogetonaceae). Fruits had all been placed in a dry-room maintained at 15% RH and 15°C for 3–6 months from the time of collection.Maximum levels of germination ranged from 13% (P. polygonifolius) to 90% (P. berchtoldii). Whilst for some species, there was some germination across all the...
Pre-dehiscent capsules were collected from two Rhododendron griersonianum (Balf.f. & Forrest) trees and either immediately dried in a dry-room (15% relative humidity, 15°C) or placed in a high humidity room (80% relative humidity, 15°C) for 30, 60, or 90d. Further capsules were also collected from the trees at 30 and 60d, but seeds had been dispersed by 90d. Seed ageing experiments (60% relative...
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