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RECORD NUMBER: 20 OF 40

OLS Field Name OLS Field Data
Main Title Influence of Floral Optical Properties on the Ultraviolet Radiation Environment of Pollen.
Author Flint, S. D. ; Caldwell, M. M. ;
CORP Author Utah State Univ., Logan.;Corvallis Environmental Research Lab., OR.
Year Published 1983
Report Number EPA-R-808167; EPA-600/J-83-212;
Stock Number PB84-203264
Additional Subjects Pollen ; Solar radiation ; Flowers ; Exposure ; Ultraviolet spectra ; Filters ; Optical properties ; Sunlight ; Transmittance ; Reproduction(Biology) ; Damage assessments ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB84-203264 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 7p
Abstract
Pollen in unopened flowers of most species is totally screened from solar ultraviolet-B radiation by imbricated petals that are largely opaque to UV-B. Following flower opening but before another dehiscence, the anther walls of the species investigated filter out over 98% of the UV-B radiation. Reflectance of UV from corollas of open flowers does not generally appear to add significantly to the solar UV-B radiation environment of pollen.