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RECORD NUMBER: 34 OF 152

OLS Field Name OLS Field Data
Main Title Effects of Enhanced Ultraviolet-B Radiation on Yield, and Disease Incidence and Severity for Wheat Under Field Conditions.
Author Biggs, R. H. ; Webb, P. G. ;
CORP Author Florida Univ., Gainesville.;Corvallis Environmental Research Lab., OR.
Year Published 1986
Report Number EPA/600/D-87/060;
Stock Number PB87-176905
Additional Subjects Wheat ; Ultraviolet radiation ; Growth ; Irradiation ; Ozone ; Yield ; Plant diseases ; Age ; Response ; Damage ; Microorganisms ; Reprints ; Triticum aestivum ; Wheat plants
Holdings
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Status
NTIS  PB87-176905 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 12p
Abstract
The influence of enhanced UV-B radiation (280-320 nm) on wheat (Triticum aestivum cv. 'Florida 301') yield, and disease incidence and severity was investigated for two growing seasons under field conditions. Three levels of UV-B enhancement, simulating 8,12 and 16% stratospheric ozone reduction, were employed during 1982, and two levels of UV-B radiation enhancement, simulating 12 and 16% ozone depletion, were used during 1983. At each level of UV-B enhancement during 1982, no significant direct effect upon yield was observed. However, in 1983, there was an indication that UV-B radiation was interacting with other parameters because there was a significant bimodal response on plant and seed dry weights. During 1983, specific small plots were used to test for leaf rust severity on a resistant and a susceptible cultivar. Leaf rust on the resistant cultivar 'Florida 301' decreased with plant age, but control and UV-treated plants were not different.