Differential response of pitted morning glory and ivy leaf morning glory to acifluorfen, fomesafen, and lactofen

Thesis/Dissertation · Wed Dec 31 23:00:00 EST 1986

OSTI ID:7162072

Higgins, J M

Field and laboratory investigations were conducted to examine the response of soybeans (Glycine max (L.) Merr.), pitted morning glory (Ipomoea lacunosa L.number/sup 1/ IPOLA), and ivy leaf morning glory (Ipomoea hederacea (L.) Jacq. number IPOHE) to acifluorfen, fomesafen, and lactofen. In field studies, greatest soybean injury was observed with acifluorfen and lactofen. All treatments provided 80% or greater control of pitted morning glory 15 days after treatment. Only acifluorfen and fomesafen at 0.6 kg ai ha/sup -1/ provided 80% or greater ivy leaf morning glory. The differential response of pitted morning glory and ivy leaf morning glory to these diphenyl ether herbicides was reflected in soybean seed yields. In laboratory studies, 71 to 84% of applied /sup 14/C-acifluorfen was not absorbed into the leaf surface of ivy leaf morning glory. Thirty-two to 46% of applied acifluorfen was recovered from the leaf surface of pitted morning glory. Sixty-four percent of applied /sup 14/C-lactofen was recovered from leaf surfaces of both morning glory species 96 h after treatment. Treated leaves of pitted morning glory contained 35 to 37% more /sup 14/C-acifluorfen than ivy leaf morning glory. Less than 28% of applied /sup 14/C-lactofen was absorbed into treated leaves of both morning glory species at 24, 48, and 96 h harvests.

• Research Organization: Clemson Univ., SC (USA)
• OSTI ID: 7162072
• Country of Publication: United States
• Language: English

Related Subjects

550501 -- Metabolism-- Tracer Techniques
553000* -- Agriculture & Food Technology
59 BASIC BIOLOGICAL SCIENCES
60 APPLIED LIFE SCIENCES
BACTERIA
BIOLOGICAL VARIABILITY
CARBON 14 COMPOUNDS
GENETIC VARIABILITY
GLYCINE HISPIDA
HERBICIDES
HERBS
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LEGUMINOSAE
METABOLISM
MICROORGANISMS
PESTICIDES
PLANTS
PRODUCTIVITY
RHIZOBIUM
SENSITIVITY
TOXICITY
TRACER TECHNIQUES
UPTAKE