Influence of sulfur dioxide and hydrogen fluoride as a mix or reciprocal exposure on citrus growth and development
The influence of exposure to mixtures of SO/sub 2/ and HF on Koethen sweet orange and mixtures and alternate exposure to these gases on Satsuma mandarin were tested using a rotating fumigation greenhouse. Effects of HF-SO/sub 2/ mixtures on linear growth and leaf area of Koethen orange were additive, not synergistic. No necrosis was observed on Koethen oranges exposed to HF, SO/sub 2/, or a mixture of HF and SO/sub 2/. Effects of the mixture on chlorosis of Satsuma mandarin foliage was also not synergistic. No significant difference in linear growth of Satsuma mandarin was found among all treatments. Alternate exposure to SO/sub 2/ followed by HF produced no synergistic injury to Satsuma mandarin. Satsuma mandarin appeared more sensitive than Koethen orange to HF, SO/sub 2/, and mixtures of these two gases using degree of chlorosis and leaf abscission as the criteria of sensitivity. If linear growth and leaf area were the principal criteria considered, Koethen orange would appear more sensitive.
- Research Organization:
- Univ. of California, Riverside
- OSTI ID:
- 6179005
- Journal Information:
- J. Air Pollut. Control Assoc.; (United States), Journal Name: J. Air Pollut. Control Assoc.; (United States) Vol. 22:9; ISSN JPCAA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
BIOLOGICAL EFFECTS
CHALCOGENIDES
CITRUS
COMPARATIVE EVALUATIONS
GROWTH
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
OXIDES
OXYGEN COMPOUNDS
PLANT GROWTH
PLANTS
POLLUTION
SENSITIVITY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
VARIATIONS