• Korean Journal of Plant Resources
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• v.8 no.1
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• pp.41-46
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• 1995

This experiment was carried out to investigate the effects of temperature, light quality and gibberellic acid on the seed germination of Rhododendron weyrichii Max. Optimum temperature for germination was $20^{\circ}C$ at constant temperature, but the final germination rate at $15^{\circ}C$ was about the same with the rates were attained by alternating temperature under higher temperature such as $25^{\circ}C$ or $30^{\circ}C$. The germination rate was increased by yellow and red light treatments at $20^{\circ}C$, but green light treatment strongly inhibited seed germination at $25^{\circ}C$. Gibberellic acid substitutes light requirement for germination of R. weyrichii seeds.