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Nitrogen deficiency and fluoride susceptibility of bean seedlings

Journal Article · · Science (Washington, D.C.); (United States)
Groups of bean seedlings (Phaseolus vulgaris) were grown concurrently in cleaned and fluoride-containing (4 to 7 ..mu..g of F/sup -/ per cubic meter) air in plant-growth chambers for 10 and 20 days with six water-culture treatments: Hoaglund's formulation and Hoaglund's minus potassium, calcium, nitrogen, phosphorus, and iron. An inadvertent 15-hour exposure on day 15 (at 42 ..mu..g/m/sup 3/) produced foliar fluorosis symptoms only on the nitrogen-deficient plants fumigated 20 days, although higher fluoride concentrations were present in the foliage of similar plants grown in the other nutrient-deficient solutions. 6 references, 1 figure.
Research Organization:
Washington State Univ., Pullman
OSTI ID:
5661997
Journal Information:
Science (Washington, D.C.); (United States), Journal Name: Science (Washington, D.C.); (United States) Vol. 133; ISSN SCIEA
Country of Publication:
United States
Language:
English