Fluoride susceptibility of tomato plants as affected by magnesium nutrition

Journal Article · Thu Jul 01 04:00:00 EDT 1976 · J. Am. Soc. Hortic. Sci.; (United States)

OSTI ID:6080664

MacLean, D C; Schneider, R E; McCune, D C

Tomato plants (Lycopersicon esculentum Mill. cv. Bonny Best) grown in sand culture and provided with a complete nutrient solution or solutions containing sub- or supraoptimal Mg concentrations were fumigated with hydrogen fluoride (HF) at 5.0 or 9.7 g F/mT for 6 days. The severity of HF-induced chlorosis on apical and medial leaves was enhanced in Mg-deficient plants and suppressed in plants grown at the highest level of Mg. Foliar accumulation of fluoride (F) from exposure to the highest HF concentrations was inhibited in plants provided the lowest and highest Mg levels. The presence of necrotic tissue probably suppressed the accumulation of F in Mg-deficient plants; however, it was not a factor in plants given supraoptimal Mg. The interactive effects of HF and Mg on foliar injury and F accumulation revealed that Mg-deficient plants were more susceptible and plants given excess Mg were more tolerant to HF than plants cultured on complete nutrient medium.

• Research Organization: Boyce Thompson Institute for Plant Research, Yonkers, NY
• OSTI ID: 6080664
• Journal Information: J. Am. Soc. Hortic. Sci.; (United States), Journal Name: J. Am. Soc. Hortic. Sci.; (United States) Vol. 101:4; ISSN JOSHB
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION
ALKALINE EARTH METALS
ATMOSPHERES
CHLOROSIS
CONTROLLED ATMOSPHERES
DATA
ELEMENTS
EXPERIMENTAL DATA
FOLIAR UPTAKE
FOOD
FRUITS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
LEAVES
MAGNESIUM
METALS
NECROSIS
NUMERICAL DATA
NUTRITIONAL DEFICIENCY
PATHOLOGICAL CHANGES
POLLUTION
RESPONSE MODIFYING FACTORS
SENSITIVITY
TOMATOES
TOXICITY
UPTAKE