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A short day plant is a plant that cannot flower under the long days of summer. Short day plants typically flower in the fall of the year. These plants require a certain number of hours of darkness in each 24 hour period (a short daylength) before floral development can begin. Plants use the phytochrome system to sense daylength or photoperiod.
Examples of short day plants
Obligate requirement:
- Chrysanthemum
- Coffee,
- Poinsettia
- Strawberry
- Tobacco, var. Maryland Mammouth
- Common duckweed, Lemna minor
- Cocklebur (Xanthium sp.)
- Maize - tropical cultivars only - others are day neutral plants
Ogulative (quantitative requirement):
- Hemp (Cannabis sp.),
- Cotton (Gossypium sp.),
- Rice,
- Sugar cane.
See also
References
Fosket, D.E. Plant Growth & Development, A Molecular Approach. Academic Press, san Diego, 1994, p. 495.
Wikipedia content modification information:
- This page was last modified on 1 March 2008, at 10:43.
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