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Title: Effects of simulated sulfuric acid rain on yield, growth, and foliar injury of several crops

This study was designed to reveal patterns of response of major United States crops to sulfuric acid rain. Potted plants were grown in field chambers and exposed to simulated sulfuric acid rain (pH 3.0, 3.5 or 4.0) or to a control rain (pH 5.6). At harvest, the weights of the marketable portion, total aboveground portion and roots were determined for 28 crops. Of these, marketable yield production was inhibited for 5 crops (radish, beet, carrot, mustard greens, broccoli), stimulated for 6 crops (tomato, green pepper, strawberry, alfalfa, orchardgrass, timothy), and ambiguously affected for 1 crop (potato). In addition, stem and leaf production of sweet corn was stimulated. Visible injury of tomatoes might have decreased their marketability. No statistically significant effects on yield were observed for the other 15 crops. The results suggest that the likelihood of yield being affected by acid rain depends on the part of the plant utilized, as well as on species. Effects on the aboveground portions of crops and on roots are also presented. Plants were regularly examined for foliar injury associated with acid rain. Of the 35 cultivars examined, the foliage of 31 was injured at pH 3.0, 28 at pH 3.5, and 5 atmore » pH 4.0. Foliar injury was not generally related to effects on yield. However, foilar injury of swiss chard, mustard greens and spinach was severe enough to adversely affect marketability.« less
Authors:
; ; ;
Publication Date:
OSTI Identifier:
6560198
Report Number(s):
PB-82-126285; EPA-600/J-81-401
ON: DE83901556
Resource Type:
Technical Report
Research Org:
Environmental Protection Agency, Corvallis, OR (USA). Environmental Research Lab.
Country of Publication:
United States
Language:
English
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 54 ENVIRONMENTAL SCIENCES; 60 APPLIED LIFE SCIENCES; ACID RAIN; BIOLOGICAL EFFECTS; ECONOMIC IMPACT; CROPS; PLANT GROWTH; NITROGEN OXIDES; SULFUR DIOXIDE; SULFURIC ACID; AIR POLLUTION; ALFALFA; BEETS; BRASSICA; CARROTS; DEPOSITION; FOLIAR UPTAKE; FRUITS; GRASS; INJURIES; LEAVES; MAIZE; PEPPERS; POTATOES; RADISHES; ROOTS; SIMULATION; SPINACH; TOMATOES; YIELDS; ATMOSPHERIC PRECIPITATIONS; CEREALS; CHALCOGENIDES; FOOD; GRAMINEAE; GROWTH; HYDROGEN COMPOUNDS; INORGANIC ACIDS; LEGUMINOSAE; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PLANTS; POLLUTION; RAIN; SULFUR COMPOUNDS; SULFUR OXIDES; TUBERS; UPTAKE; VEGETABLES 560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987); 500200 -- Environment, Atmospheric-- Chemicals Monitoring & Transport-- (-1989); 553000 -- Agriculture & Food Technology