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Day length

Pierre Lejeune plejeune at vm1.ulg.ac.be
Wed Sep 20 01:48:28 EST 1995

In article <43k1rt$k9f at mserv1.dl.ac.uk> RATCLIFF <FRANK.RATCLIFF at bbsrc.ac.uk> writes:
>From: RATCLIFF <FRANK.RATCLIFF at bbsrc.ac.uk>
>Newsgroups: bionet.genome.arabidopsis
>Subject: Day length
>Date: 18 Sep 1995 16:05:33 +0100
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>Sender: lpddist at mserv1.dl.ac.uk
>Distribution: bionet
>Message-ID: <43k1rt$k9f at mserv1.dl.ac.uk>
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>Original-To: arab-gen at dl.ac.uk (Non Receipt Notification Requested)

>I am trying to grow Columbia without them flowering, at least with 
>delayed flowering. Can anybody tell me the daylength at which 
>flowering is inducded?

>Thank you 

>Frank Ratcliff

>Ratcliff at bbsrc.ac.uk

dear frank,

Arabidopsis is a quantitative long day plant, which means that flowering is 
only DELAYED in short days. If you want to grow your plants vegetative for a 
long period (2-3 months) try short days (8 h) at low irradiance (100 
microEinstein or less). But remember, the plant WILL flower in the end.

Pierre Lejeune - Université de Liège - Belgium

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