Impact of ozone on winter wheat yield
Wheat is one of the more-important agricultural crops in the USA, and the major production areas may be subjected to potentially damaging concentrations of ozone (O/sub 3/). Since no information was available regarding the O/sub 3/ sensitivity of winter-wheat cultivars grown in the Midwest, plants of three cultivars were field-grown in open-top chambers and exposed to O/sub 3/ daily throughout the spring growing season to determine impact on grain yield. Also included was a non-chambered ambient air plot. Tests were conducted over a two-year period and compared. The study was initiated to provide further biological response data suitable for evaluating ambient air-quality standards and for use in the NCLAN economic assessment of the consequences of O/sub 3/ exposure to crops. The specific objective was to establish the exposure-response relationships between yield of three important cultivars of soft red winter wheat grown in the Midwest and chronic exposures to a range of O/sub 3/ concentrations.
- Research Organization:
- Argonne National Lab., IL (USA)
- OSTI ID:
- 5845568
- Report Number(s):
- PB-86-164050/XAB
- Country of Publication:
- United States
- Language:
- English
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