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day-length requirements

George Karlin-Neumann karlin at CMGM.STANFORD.EDU
Fri Jul 17 15:29:13 EST 1992


    The "minimal daylength" required to prevent flowering of Arabidopsis will
probably vary depending on the ecotype.  My experience with Columbia was that
among plants grown under 12hL/12hD (fluorescent lights, only), only a few out
of perhaps a thousand flowered after 2.5 - 3 months; whereas, when grown under
14hL/10hD, essentially all plants flowered within about 6-7 wks.  Rosette
growth seemed to be significantly enhanced under the shorter daylength. 

         Hope this helps, George Karlin-Neumann (Stanford)

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