Photoperiodic Flowering Response of Biloxi Soybean in 72-Hour Cycles.

@article{Coulter1964PhotoperiodicFR,
  title={Photoperiodic Flowering Response of Biloxi Soybean in 72-Hour Cycles.},
  author={M. Coulter and K. C. Hamner},
  journal={Plant physiology},
  year={1964},
  volume={39 5},
  pages={
          848-56
        }
}
Recently, evidence has accumulated to indicate that the photoperiodic control of floral induction is mediated by an endogenous rhythm with periods of approximately 24 hours (9, 10, 11, 12, 13, 18, 19, 20, 21,22). It has long been known that the floral response of Biloxi soybean varies with the length of the photoperiod (4, 5, 6, 7,18). The optimum response with 24-hour treatment cycles is obtained with photoperiods between 6 and 10 hours and normally no flowering is produced with photoperiods… Expand
Quantitative Assay of Photoperiodic Floral Inhibition and Stimulation in Biloxi Soybean.
TLDR
It was concluded that the 8-hour light period which initiated each 72hour cycle established an endogenous rhythm which completed an oscillation each 24 hours and which had alternate 12-hour phases of sensitivity to light. Expand
Floral Inhibition of Biloxi Soybean During a 72-hour Cycle.
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The inhibitory effect of light interruptions given during the photophobe phases of a 72-hour cycle was studied with Biloxi soybean and promoted the flowering levels of the controls and kept light treatments given at the most inhibitory points from inhibiting flowering completely. Expand
Circadian rhythms and the induction of flowering in the long‐day grass Lolium temulentum L.
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Results suggest that a circadian rhythm is involved in the control of flowering of L. temulentum, and a mixture of incandescent and fluorescent lights at a total photosynthetic photon flux density of 400 mu mol m(-2) s(-1), was sufficient to induce 100% flowering. Expand
Night-Break Experiments Shed Light on the Photoperiod1-Mediated Flowering1[OPEN]
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It is shown that the interruption of long nights by short pulses of light (“night-break” [NB]) accelerates wheat flowering, suggesting that the duration of the night is critical for wheat photoperiodic response. Expand
Flowering Responses of Xanthium pensylvanicum to Long Dark Periods.
TLDR
Although the results are inconclusive with respect to a rhythm, they do indicate similarities and differences to the responses of other short-day plants in which rhythms have been demonstrated. Expand
Photoperiodic flowering regulation in Arabidopsis thaliana.
TLDR
The recent discovery of a photosynthate derivative trehalose-6-phosphate as an activator of FT in leaves has interesting implications for the involvement of photosynthesis in the photoperiodic flowering response that were suggested from previous physiological experiments in flowering induction. Expand
The involvement of an endogenous circadian rhythm in photoperiodic timing in Acrochaetium asparagopsis (Rhodophyta, Acrochaetiales)
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In Acrochaetium asparagopsis (Chemin) Papenfuss, tetrasporocyst formation is a genuine short-day photoperiodic response and maximum inhibition of the response occurred with night-breaks given at approximately 24 h intervals and coincided with the postulated skotophile phase. Expand
PHYTOCHROME AND PHOTOPERIODISM
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This chapter describes some experiments concerning effects of phytochrome in photoperiodic responses, and an important fact about the photoperperiodic mechanism is that it operates only in de-etiolated plants, and dark-grown plants do not appear to show photoper Periodic responses. Expand
RHYTHMIC FLOWERING RESPONSES AND PHYTOCHROME CHANGES IN A SELECTION OF CHENOPODIUM RUBRUM
Flowering of Chenopodium rubrum L., selection 374, was examined with respect to an endogenous circadian rhythm, the state of phytochrome, and the result of changing the form of phytochrome during aExpand
Suppression of the Floral Activator Hd3a Is the Principal Cause of the Night Break Effect in Rice[W]
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The results strongly suggest that the suppression of Hd3a mRNA is the principal cause of the NB effect on flowering in rice, and that the effect was mediated by phytochrome B. Expand
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Studies on the Nature of the Endogenous Rhythm Affecting Photoperiodic Response of Biloxi Soybean
TLDR
The results obtained with Biloxi soybean support those obtained by Lockhart and Hamner with Xanthium in which a second dark period following a brief exposure to light partially nullified the effect of an inductive dark period. Expand
Floral inhibition in relation to photoperiodism in Biloxi soybean.
TLDR
Differential flowering due to varying lengths of photoperiod during the second 24 hour period provides information concerning the nature of floral inhibition in Biloxi soybean. Expand
Interrelations among Effects of Temperature, Photoperiod, and Dark Period on Floral Initiation of Biloxi Soybean
TLDR
The flowering response in Biloxi soybean is apparently influenced to a marked degree by some endogenous rhythm of 24 hours' duration, which might explain the results obtained with cycles of different durations at both normal and low temperatures. Expand
Influence of Photoperiods upon the Differentiation of Meristems and the Blossoming of Biloxi Soy Beans
TLDR
Stimulation of two short photoperiods was sufficient to alter the course of development of the growing points in such a way that differentiation of flower primordia resulted, and the time of blossoming of young Biloxi soy beans was influenced. Expand
Effect of Variation in Temperature During Photoperiodic Induction Upon Initiation of Flower Primordia in Biloxi Soybean
TLDR
None of the temperature combinations used in these experiments brought about the initiation of flower primordia when photoperiods of 16 hours were used. Expand
Interrelation of Light and Darkness in Photoperiodic Induction
TLDR
Experimental evidence has indicated that in both the soybean and Xanthium photoperiodic induction is dependent in part upon responses which occur as the result of exposure to light, and those owing to darkness as B, and the resultant changes related to A and B may be referred to as C. Expand
Nonphotochemical Transformations of Phytochrome in Vivo.
TLDR
2 nonphotochemical processes which appear to involve phytochrome as a reactant are reported which are accompanied by another dark reaction which results in a loss of reversible phy tochrome in dark-grown seedlings. Expand
DETECTION, ASSAY, AND PRELIMINARY PURIFICATION OF THE PIGMENT CONTROLLING PHOTORESPONSIVE DEVELOPMENT OF PLANTS.
TLDR
The presence of the photoreversible pigment in intact tissue has been demonstrated with a recording, single-beam spectrophotometer and the system response is sufficiently reproducible that valid difference spectra can be obtained by subtracting one recorded curve from another. Expand
Photo - periodism and circadian rhythm
  • The Amer . Naturalist .
  • 1964
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