||Collaborative Effort to Model Plant Response to Acidic Rain. Journal Article.
Lee, J. ;
Jacobson, J. ;
Kuja, A. ;
Irving, P. ;
Shriner., D. ;
||Corvallis Environmental Research Lab., OR. ;Boyce Thompson Inst. for Plant Research, Ithaca, NY. ;Argonne National Lab., IL. ;Ontario Ministry of the Environment, Toronto. ;Oak Ridge National Lab., TN.
Statistical analysis ;
Soil chemistry ;
Acid rain ;
Air pollution effects(Plants) ;
Radish plants ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||Radish plants were exposed three times per week to simulated acidic rain at pH values of 2.6 to 5.4 over the course of four weeks in trials performed at Argonne, IL: Ithaca & Upton, NY; Corvallis, OR; Oak Ridge, TN; and Toronto, Canada. Uniform genotype, soil media and planting techniques, treatment procedures, biological measurements, and experimental design were employed. Growth of plants differed among trials as a result of variation in greenhouse environmental conditions according to location and facilities. Larger plants underwent greater absolute but lower relative reduction in biomass after exposure to the high levels of acidity. A generalized Mitscherlich function was used to model the effects of acidity of simulated rain or dry mass of hypocotyls using data from three laboratories that performed only one trial each, were used to test the model. When the laboratory by trial effect was removed (influence of different growth conditions), lack of fit to the Mitscherlich function was insignificant. Thus, a single mathematical model satisfactorily characterized the relationship between acidity and mean plant response. The pH value associated with a 10 percent reduction in mass was 3.3 + or - 0.3 for hypocotyls. No value was estimated for shoots because effects on shoots were not significant. (Copyright (c) 1988 APCA.)
||Pub. in Jnl. of the Air Pollution Control Association, v38 n6 p777-783 Jun 888. See also DE90003002. Prepared in cooperation with Boyce Thompson Inst. for Plant Research, Ithaca, NY., Argonne National Lab., IL., Ontario Ministry of the Environment, Toronto, and Oak Ridge National Lab., TN.
||Reprint: Collaborative Effort to Model Plant Response to Acidic Rain. Journal Article.
||PC A02/MF A01