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OLS Field Name OLS Field Data
Main Title Effects of Ultraviolet-B Radiation on Plant Competition in Terrestrial Ecosystems.
Author Gold, W. G. ; Caldwell, M. M. ;
CORP Author Utah State Univ., Logan.;Corvallis Environmental Research Lab., OR.
Year Published 1983
Report Number EPA-R-808160; EPA-600/J-83-110;
Stock Number PB84-124916
Additional Subjects Plant growth ; Ultraviolet radiation ; Plant ecology ; Competition ; Biomass ; Production ; Ozone ; Wheat plants ; Stress(Physiology) ; Field tests ; Reduction ; Reprints ; Triticum aestivum ; Wheat plants ; Areena fatua ; Wild oat plants
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NTIS  PB84-124916 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 13p
Abstract Evidence regarding the interaction of ultraviolet-B (UV-B, 280-320 nm) radiation and plant competition in terrestrial ecosystems is examined. The competitive interactions of some species pairs were affected even by ambient solar UV-B radiation (as exists without ozone depletion), when compared to control pairs grown without UV-B. Also the total shoot biomass of these species pairs was depressed under ambient UV-B. Recent field experiments have examined the competitive interactions of wheat (Triticum aestivum) and wild oat (Avena fatua) under a simulated increased UV-B regime resulting from a 16% ozone layer reduction when weighted with the generalized plant action spectrum. This increase in UV-B altered the competitive interactions of these two species without affecting the total shoot biomass production of the species pair.
Availability Notes Pub. in Physiologia Plantarum, n58 p435-444 1983.
NTIS Title Notes Journal article.
Title Annotations Reprint: Effects of Ultraviolet-B Radiation on Plant Competition in Terrestrial Ecosystems.
PUB Date Free Form c1983
Category Codes 6C; 6F; 57C; 57H; 68A
NTIS Prices Not available NTIS
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 404822363
Origin NTIS
Type CAT