Influence of magnesium nutrition on the sensitivity of tomato plants to air pollution

Journal Article · Sat Aug 01 04:00:00 EDT 1970 · HortScience; (United States)

OSTI ID:5194995

MacLean, D C

Tomato plants grown in sand culture and provided complete nutrient solution or solutions containing deficient or superoptimal Mg concentrations were fumigated with HF at 5.0 or 9.7 ..mu..g F/m/sup 3/ for 7 days. The severity of HF-induced chlorosis on epical and medial leaves was enhanced in Mg deficient plants and suppressed in plants grown at the highest level. Foliar accumulation of F was inhibited in plants provided the lowest and highest Mg levels. The presence of necrotic tissue probably suppressed F accumulation in Mg deficient plants; however, it was not a factor in plants given superoptimal Mg. The HF X Mg interactions, with respect to foliar injury and F accumulation, revealed that Mg deficient plants were more susceptible and plants given excess Mg were more resistant to HF than plants cultured on complete nutrient media.

• Research Organization: Boyce Thompson Institute, Yonkers, NY
• OSTI ID: 5194995
• Journal Information: HortScience; (United States), Journal Name: HortScience; (United States) Vol. 5:4; ISSN HJHSA
• 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
BIOLOGICAL ACCUMULATION
BIOLOGICAL EFFECTS
ELEMENTS
FLUORINE
FOOD
FRUITS
HALOGENS
HERBS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LEAVES
MAGNESIUM
METALS
NECROSIS
NONMETALS
NUTRIENTS
NUTRITIONAL DEFICIENCY
PATHOLOGICAL CHANGES
PLANTS
POLLUTION
SENSITIVITY
TOMATOES
TOXICITY