Foliar sensitivity of pinto bean and soybean to ozone as affected by temperature,potassium nutrition and ozone dose |
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| Authors: | John A Dunning Walter W Heck David T Tingey |
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| Institution: | 1. Biologist and Plant Physiologist, Southern Region, Agricultural Research Service, U.S. Dept. of Agriculture, 27607, Raleigh, N.C., USA
2. Plant Physiologist, National Ecological Research Laboratory, U.S. Environmental Protection Agency, 97330, Corvallis, Ore., USA
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| Abstract: | Pinto bean (Phaseolus vulgaris L.) and soybean Glycine max (L.) Merv.] were exposed to O3 to determine the interactions of growth temperature, exposure temperature, K nutrition and doses of O3 on their foliar sensitivity. Pinto bean developed more foliar injury than soybean. Pinto bean were most sensitive when grown and exposed at 28°C. Growth and exposure temperature interacted in the development of foliar injury on pinto bean, but only growth temperature influenced the amount of foliar injury on soybean. Both species developed more foliar injury when grown with low K nutrition. There was no relationship between foliar injury and reducing sugars or sucrose content of the leaves. |
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