Relationships among injury, growth, and yield responses of soybean cultivars exposed to ozone at different light intensities

Journal Article · Fri Jan 01 04:00:00 EST 1982 · J. Environ. Qual.; (United States)

DOI:https://doi.org/10.2134/jeq1982.00472425001100040027x· OSTI ID:6914505

Heagle, A S; Letchworth, M B

Four soybean cultivars (Glycine max (L.) Merr. cv. Forrest, Davis, Ransom, and Bragg) differing in foliar sensitivity and shoot weight response to O/sub 3/ during vegetation growth were exposed to O/sub 3/ from the seedling stage to maturity to determine if the yield response correlated with the vegetative response. Neither the foliar injury nor the vegetative shoot weight response of cultivars to O/sub 3/ allowed reasonable prediction of the cultivar yield response to O/sub 3/. This inadequacy may relate to differences in cultivar tolerance. Bragg, with moderate amounts of O/sub 3/-induced injury and with diseased growth, yielded as well as the controls. Davis, with moderate amounts of O/sub 3/-induced injury and decreased growth, yielded 34% less than the controls. The four cultivars were grown in open-top field chambers with different degrees of shading to determine whether light intensity would alter their response to O/sub 3/. Light intensity in nonshaded open-top field chambers was 9% less than that in an open field; chambers with shade cloth covering the sides or tops decreased light intensity by 15 and 19%, respectively. The shade treatments did not change overall yield response to O/sub 3/ or the relative cultivar yield response to O/sub 3/. 16 references, 6 tables.

• Research Organization: USDA, Raleigh, NC
• OSTI ID: 6914505
• Journal Information: J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 11:4; ISSN JEVQA
• Country of Publication: United States
• Language: English

Related Subjects

500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
BIOLOGICAL ADAPTATION
BIOLOGICAL EFFECTS
CHEMISTRY
ECOLOGICAL CONCENTRATION
FOLIAR UPTAKE
GLYCINE HISPIDA
GROWTH
INJURIES
LEGUMINOSAE
OZONE
PLANT GROWTH
PLANTS
POLLUTION
TOXICITY
UPTAKE