Effect of fluorides on Milo maize (Sorghum sp. )

Journal Article · · Contrib. Boyce Thompson Inst.; (United States)

OSTI ID:5762697

Hitchcock, A E; Zimmerman, P W; Coe, R R

The effects of fluorine (F) compounds on the growth and development of Milo maize (Sorghum sp.) in experiments conducted during the period from 1953 to 1961 are summarized. Hydrofluoric acid (HF) or fluosilicic acid (H/sub 2/SiF/sub 6/) was the volatile fluoride used. Snow Princess and Elizabeth the Queen gladiolus (Gladiolus sp.) were used as indicators to compare the known differential response of these two varieties to fluorides with the response of Milo maize. Chlorotic and necrotic markings, uptake of F, and the growth and yield of plants and seed heads varied considerably with the variety of Milo maize, cultural site, stage of plant development, and dosage of fluoride. Milo maize and gladiolus exposed to ambient air in field plots in northwest Yonkers accumulated significantly more F than in plots located 0.5 to 1.3 miles to the east where there was less atmospheric F. Controls held in washed air for 14 days contained less F, but gained more F after treatment than controls held throughout the experiments in ambient air. Milo maize leaves exhibited the most chlorosis and necrosis, and accumulated the most F when the plants were fumigated after the elongation stage of development. The amount of chlorosis increased with the age of the leaf in varieties Martin's and Plainsman exposed to HF or to H/sub 2/SiF/sub 6/. Both F-containing compounds were taken up in about equal quantities by leaves of a given variety and induced about the same amount of chlorosis. 6 figures, 21 tables.

• OSTI ID: 5762697
• Journal Information: Contrib. Boyce Thompson Inst.; (United States), Journal Name: Contrib. Boyce Thompson Inst.; (United States) Vol. 22:4; ISSN CBTIA
• 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.
AGE DEPENDENCE
AIR POLLUTION
BIOLOGICAL INDICATORS
CEREALS
COMPARATIVE EVALUATIONS
DATA
DOSE-RESPONSE RELATIONSHIPS
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
FOLIAR UPTAKE
GRASS
GROWTH
HALIDES
HALOGEN COMPOUNDS
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
LEAVES
LILIUM
NECROSIS
NUMERICAL DATA
PATHOLOGICAL CHANGES
PLANT GROWTH
PLANTS
POLLUTION
PRODUCTIVITY
SORGHUM
SPECIES DIVERSITY
TOXICITY
UPTAKE