Simulated acid rain effects on Zinnia as influenced by available nutrients. [Zinnia elegans]

Journal Article · Fri Dec 31 23:00:00 EST 1982 · J. Am. Soc. Hortic. Sci.; (United States)

OSTI ID:6666097

Keever, G J; Jacobson, J S

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 pirmarily 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.

• Research Organization: Cornell Univ., Ithaca, NY
• OSTI ID: 6666097
• 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
ALKALI METAL ISOTOPES
ALKALI METALS
ALKALINE EARTH METALS
ATMOSPHERIC PRECIPITATIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
CALCIUM
DAYS LIVING RADIOISOTOPES
DISSOLUTION
ELEMENTS
GROWTH
INJURIES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
LABELLING
LEACHING
LEAVES
METALS
MINUTES LIVING RADIOISOTOPES
NONMETALS
NUCLEI
NUTRIENTS
ODD-ODD NUCLEI
ORNAMENTAL PLANTS
PH VALUE
PHOSPHORUS
PLANT GROWTH
PLANTS
POTASSIUM
RADIOISOTOPES
RAIN
RUBIDIUM 86
RUBIDIUM ISOTOPES
SEPARATION PROCESSES
SIMULATION
TRACER TECHNIQUES