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RECORD NUMBER: 33 OF 156

OLS Field Name OLS Field Data
Main Title Effects of Ozone and Water Stress on Canopy Temperature, Water Use, and Water Use Efficiency of Alfalfa.
Author Temple, P. J. ; Benoit, L. F. ;
CORP Author California Univ., Riverside. Statewide Air Pollution Research Center.;Corvallis Environmental Research Lab., OR.
Year Published 1988
Report Number EPA/600/J-88/122;
Stock Number PB88-251756
Additional Subjects Ozone ; Stress(Physiology) ; Soil water ; Growth ; Hay ; Leguminous plants ; Water consumption ; Field tests ; Irrigation ; Droughts ; Evapotranspiration ; Temperature ; Yield ; Reprints ; Medicago sativa ; Alfalfa
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB88-251756 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 12/29/1988
Collation 12p
Abstract
Ozone (O3) and soil water deficit are two environmental stresses that significantly affect the growth and yield of alfalfa. However, little is known of the responses of field-grown alfalfa to O3, and the effects of the interaction between O3 and water stress on canopy temperature and water relations of alfalfa have not been previously reported. Water use, rate of soil water depletion, or depth of effective rooting zone were not affected by O3, whereas water stress significantly reduced all three. Water use efficiency was significantly reduced by O3. The effects of O3 on WUE were attributed to premature senescence and abscission of older alfalfa leaves.