Effects of increasing doses of sulfur dioxide and ambient ozone on tomatoes: plant growth, leaf injury, elemental composition, fruit yields, and quality

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5002861

Heggestad, H E; Bennett, J H; Lee, E H; Douglass, L W

Jet Star, an indeterminant tomato cultivar, was exposed to 0.011, 0.059, 0.118, 0.235, and 0.468 ppm SO/sub 2/ in open-top field chambers supplied with nonfiltered(NF) air and to 0.005, 0.113, and 0.466 ppm SO/sub 2/ in chambers with charcoal-filtered(CF) air. Treatments were given 5 hr/day, 5 days/wk, for a total of 57 days during July, August, and September. Ripe fruit yields were decreased 16% by O/sub 3/ in NF compared with CF air. The highest dose of SO/sub 2/ given in CF air reduced fruit yield by 18%. Ambient O/sub 3/ and the SO/sub 2/ treatments were additive in their effects on fruit yields. Significant reductions in fruit numbers were observed. Fruit quality was not measurably altered. A negative linear response for ripe fruit yield vs SO/sub 2/ exposure dose was demonstrated.

• Research Organization: Agricultural Research Service, Albany, CA (USA). Western Utilization Research and Development Div.
• OSTI ID: 5002861
• Report Number(s): PB-88-149166/XAB
• Country of Publication: United States
• Language: English

Related Subjects

500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560300 -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID RAIN
AIR POLLUTION
ATMOSPHERIC PRECIPITATIONS
BIOLOGICAL EFFECTS
CHALCOGENIDES
ENVIRONMENTAL IMPACTS
FOOD
FRUITS
GROWTH
HARVESTING
INJURIES
INTERACTIONS
NAPAP
OXIDES
OXYGEN COMPOUNDS
OZONE
PLANT GROWTH
POLLUTION
RAIN
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TOMATOES
TOXICITY