Simulated acid rain effects on Zinnia as influenced by available nutrients

Journal Article · Sat Jan 01 04:00:00 EST 1983 · J. Am. Soc. Hortic. Sci.; (United States)

OSTI ID:6847098

Keever, G J ^[1]; Jacobson, J S

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1. Cornell Univ., Ithaca, NY

Greenhouse-grown plants of Zinnia elegans Jacq. were exposed to simulated sulfuric acid rain 30 minutes per day twice a week for 6 weeks at pH 2.8, 4.0, and 5.6. Injury occurred primarily to older, mature leaves and cotyledons at pH 2.8 and 4.0 and to ray flowers at pH 2.8. Plants supplied with higher levels of Hoagland's nutrient solution grew more rapidly, contained greater quantities of foliar K, P, and Ca, and exhibited more foliar injury after exposure to acidic simulated rain (SR). Dry weight of plants given full-strength nutrient solution (highest level) was depressed at pH 2.8 and increased at pH 4.0 relative to pH 5.6. Loss of /sup 86/Rb by leaching from foliage was significantly increased at pH 2.8, but no differences in total foliar content of K, P, and Ca were detected.

• OSTI ID: 6847098
• Journal Information: J. Am. Soc. Hortic. Sci.; (United States), Journal Name: J. Am. Soc. Hortic. Sci.; (United States) Vol. 108:1; ISSN JOSHB
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID RAIN
AIR POLLUTION
ATMOSPHERIC PRECIPITATIONS
COMPARATIVE EVALUATIONS
FLOWERS
INJURIES
LEAVES
POLLUTION
RAIN
SIMULATION