Abstract:Sourwood seed held at a constant temperature of 25°C (77°F) exhibited the highest germination percentage when exposed to 4 or more hours of light daily. There were no significant differences in germination percentages among seeds exposed to 4, 8 or continuous light during each 24 hour cycle. Seeds exposed to 1 hour of light daily and subjected to 20°C (68°F), 22.5°C (72.5°F), 25°C (77°F), 28°C (82.4°F), 25/15°C (77/59°F) or 30/20°C (86/68°F) exhibited the highest germination percentages at the alternating temp… Show more
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