Effect of dose rate and exposure time on the stimulation effect of tube growth of Pinus silvestris pollen

The stimulating effect of ionizing radiation in respect to dose rate and exposure time was studied using the tube growth of Pinus silvestris pollen. Stimulation was registered with a small dose (50 rad) supplied at low dose rates (0.5; 1.0; 3.0 and 5.0 rad/sec) and with higher doses (300, 800 and 14...

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Bibliographic Details
Published in:Radiation and environmental biophysics 1975-06, Vol.12 (1), p.81
Main Authors: Zelles, L, Fendrik, I
Format: Article
Language:English
Subjects:
Dose-Response Relationship, Radiation
Gamma Rays
Plant Development
Pollen - radiation effects
Radiation Effects
Time Factors
X-Rays
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Summary:The stimulating effect of ionizing radiation in respect to dose rate and exposure time was studied using the tube growth of Pinus silvestris pollen. Stimulation was registered with a small dose (50 rad) supplied at low dose rates (0.5; 1.0; 3.0 and 5.0 rad/sec) and with higher doses (300, 800 and 1400 rad) supplied at higher dose rates (10; 40 and 50 rad/sec). This suggests that only the exposure time is of importance for radiation-induced stimulation provided that the exposure time does not exceed 100 sec.
ISSN:0301-634X
DOI:10.1007/BF02339813