Effect of ozone on the yield and plant biomass of a commerical variety of tomato

Journal Article · Wed Jan 01 04:00:00 EST 1975 · J. Environ. Qual.; (United States)

DOI:https://doi.org/10.2134/jeq1975.00472425000400040008x· OSTI ID:7292798

Oshima, R J; Taylor, O C; Braegelmann, P K; Baldwin, D W

A commercial variety of pole tomato (Lycopersicon esculentum Mill. H-11) was exposed to 20 and 35 parts per hundred million (pphm) ozone for 2.5 hours, 3 days each week over a period of 15 weeks. Extensive foliar injury, defoliation, and highly significant reductions in plant biomass occurred at both exposure levels. However, fruit yield was significantly reduced only at the higher 35 pphm ozone concentration. This reduction was due to a decrease in the number of fruit and not to a decrease in fruit weight. Fruit yield in the 20 pphm treatment was equal to that of the control despite a 27 percent reduction in total dry weight of plants. These results indicate the presence of a threshold for the effect of ozone on yield.

• Research Organization: Univ. of California, Riverside
• OSTI ID: 7292798
• Journal Information: J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 4:4; ISSN JEVQA
• Country of Publication: United States
• Language: English

Related Subjects

553000 -- Agriculture & Food Technology
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
60 APPLIED LIFE SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
BIOLOGICAL EFFECTS
BIOMASS
DOSE-RESPONSE RELATIONSHIPS
ENERGY SOURCES
FOOD
FRUITS
INJURIES
LEAVES
OZONE
PRODUCTIVITY
RENEWABLE ENERGY SOURCES
TOMATOES
VEGETABLES