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Nitrogen nutrition and susceptibility of tobacco leaves to ozone

Journal Article · · Tob. Sci.; (United States)
OSTI ID:5775296
The relation of nitrogen nutrition to ozone susceptibility of tobacco (Nicotiana tabacum L. cv. Catterton) was investigated in a series of nutriculture and fumigation experiments. Plants grown in washed sand and irrigated with complete nutrient solutions containing 15 to 800 mg nitrogen per liter were exposed to ozone for 2.25- or 4.50-hour periods at 0.09, 0.18, and 0.36 ppm. Ozone caused more extensive damage to plants grown with 160 mg nitrogen per liter than to plants given nitrogen in smaller or larger quantities. Ozone damage was pronounced when nitrogen levels were more than 2.0%. Mature leaves experienced higher levels of ozone injury than young leaves, but damage to both young and mature leaves could be intensified by increasing the ozone dose rate. 13 references, 5 figures, 3 tables.
Research Organization:
Dept. of Agriculture, Beltsville, MD
OSTI ID:
5775296
Journal Information:
Tob. Sci.; (United States), Journal Name: Tob. Sci.; (United States) Vol. 165:19; ISSN TOSCA
Country of Publication:
United States
Language:
English