Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Plant Physiology 43:1894-1898 (1968)
© 1968 American Society of Plant Biologists

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (25)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Halaban, R.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Halaban, R.
Agricola
Right arrow Articles by Halaban, R.
Articles

The Flowering Response of Coleus in Relation to Photoperiod and the Circadian Rhythm of Leaf Movement 1,2

Ruth Halaban

Department of Biology, Princeton University, Princeton, New Jersey 08540

The flowering response of Coleus frederici and Coleus blumei x C. frederici is dependent on the photoperiod; both plants have a critical day length of about 12 hr. The inductive phase, defined as the period when light signals inhibit floral development, started 10 hr after the onset of darkness under 4 and 8-hr photoperiods, and 8 hr after the onset of darkness under a 12-hr photoperiod. However, a fixed temporal relationship between the inductive phase and the minimum leaf position was observed for Coleus frederici. The inductive phase always started 5 hr after the minimum leaf position. This evidence supports the theory that a circadian clock participates in the time measurement process of photoperiodic floral induction.

1 This work was partially supported by a NSF grant to Dr. W. P. Jacobs.

2 The material presented here is a part of a dissertation submitted to the Department of Biology of Princeton University in partial fulfillment of the requirements for the degree of Doctor of Philosophy.




This article has been cited by other articles:


Home page
 Proc. Natl. Acad. Sci. USAHome page
A. J. Millar and S. A. Kay
Integration of circadian and phototransduction pathways in the network controlling CAB gene transcription in Arabidopsis
PNAS, December 24, 1996; 93(26): 15491 - 15496.
[Abstract] [Full Text] [PDF]

Home page
 J Biol RhythmsHome page
T. L. Hennessey and C. B. Field
Evidence of Multiple Circadian Oscillators in Bean Plants
J Biol Rhythms, July 1, 1992; 7(2): 105 - 113.
[Abstract] [PDF]

Home page
 ScienceHome page
W. S. Hillman
Calibrating Duckweeds: Light, Clocks, Metabolism, Flowering
Science, August 6, 1976; 193(4252): 453 - 458.
[Abstract] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1968 by the American Society of Plant Biologists