scholarly journals Changes in the Growth and Photoperiodic Sensitivity of Pharbitis nil Seedlings in Relation to Low Intensity Light

1963 ◽  
Vol 76 (899) ◽  
pp. 181-190
Author(s):  
Keiji MARUSHIGE ◽  
Yasuko MARUSHIGE
Keyword(s):  
Pharbitis Nil ◽  
Photoperiodic Sensitivity ◽  
Low Intensity

scholarly journals The involvement of gibberellins in phytochrome-controlled flowering of Pharbitis nil

2014 ◽  
Vol 71 (1) ◽  
pp. 23-27 ◽  
Author(s):  
Halina Kulikowska-Gulewska ◽  
Jan Kopcewicz
Keyword(s):  
Seedling Growth ◽  
White Light ◽  
Dark Period ◽  
Light Flash ◽  
Total Content ◽  
Light Period ◽  
Pharbitis Nil ◽  
Low Intensity ◽  
Controlled Flowering ◽  
Growth Of Seedlings

The seedlings of <em>Pharbitis nil</em>, a sesitive short-day plant (SDP), were cultivated under special photoperiodic conditions: 72-h-long darkness, 24-h-long white light with low intensity, 24-h-long inductive night. During 24-h-long inductive darkness the total content of gibberellins in cotyledons underwent fluctuations with a maximum at 0 h and 8 h, and a decrease at the end of the dark period. FR light applied at the end of the 24-h-long white-light period inhibited flowering. R light flash and partially exogenous GA3 added on cotyledons could reverse the effect of FR. The seedling growth was not affected by FR and R light irradiation, but was promoted by exogenous GA3 application. The obtained results suggest that gibberellins are involved in photoperiodic control of SDP <em>P. nil</em> flowering. This involvement has nothing in common with participation of gibberellins in the control of the elongation growth of seedlings.

Low-Intensity Cognitive Behavioral Therapy

2017 ◽  
Vol 2 (1) ◽  
pp. 31-36
Author(s):  
Pascal Wabnitz ◽  
Michael Schulz ◽  
Michael Löhr ◽  
André Nienaber
Keyword(s):  
Cognitive Behavioral Therapy ◽  
Behavioral Therapy ◽  
Cognitive Behavioral ◽  
Low Intensity

A rhythm in the flowering response of photoperiodically-induced Pharbitis nil to agents affecting cytosolic calcium and pH

1992 ◽  
Vol 85 (1) ◽  
pp. 57-60 ◽  
Author(s):  
Haya Friedman ◽  
Eliezer E. Goldschmidt ◽  
Hanna Spiegelstein ◽  
Abraham H. Halevy
Keyword(s):  
Cytosolic Calcium ◽  
Pharbitis Nil ◽  
Flowering Response
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