Germination of seeds in Jussiaea suffruticosa

概要

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Seeds of Jussiaea suffruticosa reach high germination percentages only when exposed to long periods of continuous illumination. The light reaction may be repeatedly reversed by short exposures to red and far red light, thus being mediated by the phytochrome system. Seeds also germinate at high percentages if exposed to various cycles of 1 hr light and 24 hr of darkness at 20℃. If the temperature in the periods of darkness is raised up to 30℃ or lowered to 10℃ the promotive effect of light is inhibited. High temperatures (35℃) during imbibition have a promotive effect, whereas a pure O_2 atmosphere decreases the response to light. KNO_3 and kinetin enhance the response to light but do not provoke germination in the dark. Only if seed coats are punctured or removed does germination in the dark occur.
日本植物生理学会の論文