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INTERACTION OF OZONE AND HERBICIDES IN SOYBEANS
Citation:
Bahadur, R. INTERACTION OF OZONE AND HERBICIDES IN SOYBEANS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/3-78/047 (NTIS PB282886), 1978.
Description:
The purpose of this investigation was to identify potentially damaging herbicide-ozone interactions on soybean so that injury could be reduced by judicious selection of herbicides and tolerant cultivars. The involvement of herbicide influence on stomatal aperture affecting ozone fumigation injury was studied. Soybean cultivars with varying sensitivity to ozone were planted in the greenhouse in soil containing residual levels of atrazine, normally recommended levels of metribuzin or nontreated soil. The herbicide bentazon was also studied, but was applied to foliage when the soybeans were 3 weeks old. Transpiration rates were monitored to evaluate potential interactions. Atrazine, metribuzin, and bentazon all affected transpiration.