Responses of Field-Grown Soybean (cv. Essex) to Elevated SO sub(2) Under Two Atmospheric CO sub(2) Concentrations

Tests were carried out to evaluate the impacts of elevated levels of carbon dioxide and sulfur dioxide on soybeans (Glycine max. L. Merr. cv.'Essex') grown under field conditions. Samples of the plants were raised over a full season in open top field chambers. Plants were exposed to either...

Full description

Saved in:
Bibliographic Details
Published in:Environmental and experimental botany 1997-06, Vol.37 (2), p.85-85
Main Authors: Lee, Edward H, Pausch, Roman C, Rowland, Randy A, Mulchi, Charles L, Rudorff, Bernardo F
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Tests were carried out to evaluate the impacts of elevated levels of carbon dioxide and sulfur dioxide on soybeans (Glycine max. L. Merr. cv.'Essex') grown under field conditions. Samples of the plants were raised over a full season in open top field chambers. Plants were exposed to either ambient air, or elevated CO sub(2)and one of two levels of elevated SO sub(2). The CO sub(2) enrichment was found to increase net photosynthesis rates, leaf area index, and dry leaf weight, regardless of the SO sub(2) treatments. Although increased concentrations of SO sub(2) caused declines in photosynthesis and leaf area index during pod fill stages, they did not appear to influence stomatal resistance, transpiration, total biomass, or grain yield.
ISSN:0098-8472