Cotton response to temperature and organic arsenicals

Journal Article · Sat May 01 04:00:00 EDT 1971 · Weed Sci.; (United States)

OSTI ID:6219982

Keeley, P E; Thullen, R J

Non-radioactive and /sup 14/C-organic arsenical herbicides were applied to foliage of young cotton (Gossypium hirsutum L., var. Acala SJ-1) at various temperatures. An application of 3.36 kg/ha of monosodium methanearsonate (MSMA), with and without 0.5% surfactant, severely injured plants exposed at 13 C. Similar injury resulted when plants were exposed and treated at 20 C with MSMA containing 0.5% surfactant. Aplications of MSMA did not injure plants exposed at 31 C. Disodium methanearsonate (DSMA) was less injurious to cotton than MSMA. Only slight to moderate injury resulted when plants were exposed and treated at 13 C with 3.36 kg/ha of DSMA containing 0.5% surfactant. Applications at higher temperatures did not injure cotton. Cotyledons absorbed /sup 14/C-methanearsonic acid (MAA) and /sup 14/C-MSMA more readily than /sup 14/C-DSMA. Contact injury from these herbicides was slight at 13 C but was pronounced at 20 and 29 C. Generally, translocation of herbicides into developing true leaves was slight. The exception resulted from applications of /sup 14/C-MSMA to plants at 13 C when contact injury was negligible. 8 references, 2 figures, 2 tables.

• Research Organization: Dept. of Agriculture, Shafter, CA
• OSTI ID: 6219982
• Journal Information: Weed Sci.; (United States), Journal Name: Weed Sci.; (United States) Vol. 19:3; ISSN WEESA
• 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
ARSENIC COMPOUNDS
BIOLOGICAL EFFECTS
COTTON PLANTS
GROWTH
HERBICIDES
ISOTOPE APPLICATIONS
LEAVES
ORGANIC ARSENIC COMPOUNDS
ORGANIC COMPOUNDS
PESTICIDES
PLANT GROWTH
PLANTS
POLLUTION
SENSITIVITY
TEMPERATURE DEPENDENCE
TOXICITY
TRACER TECHNIQUES
TRANSLOCATION