Sweet potato periderm components inhibit yellow nutsedge (Cyperus esculentus) growth

Sequential extraction and chromatographic procedures were used to isolate inhibitors of yellow nutsedge growth from sweet potato periderm tissue. Most of the inhibitory activity was found in a single high pressure liquid chromatography peak that contained 1.2% of the periderm dry weight. Concentrati...

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Bibliographic Details
Published in:Weed technology 1994-01, Vol.8 (1), p.168-171
Main Authors: Harrison, H.F. Jr, Peterson, J.K
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
ALELOPATIA
ALLELOPATHIE
ALLELOPATHY
Bioassay
BIOASSAYS
BIOLOGIA
Biological and medical sciences
BIOLOGIE
BIOLOGY
CHEMICAL COMPOSITION
Chromatography
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
CYPERUS ESCULENTUS
DOSAGE BIOLOGIQUE
ENSAYO BIOLOGICO
EXTRACTOS VEGETALES
EXTRAIT D'ORIGINE VEGETALE
Fundamental and applied biological sciences. Psychology
Generalities, botany, ecology, damages, economic importance
GROWTH INHIBITORS
High pressure
INHIBIDORES DEL CRECIMIENTO
IPOMOEA BATATAS
Liquid chromatography
MALEZAS
MALEZAS PERENNES
MAUVAISE HERBE
MAUVAISE HERBE VIVACE
Parasitic plants. Weeds
PERENNIAL WEEDS
PERIDERM
PERIDERME
PERIDERMIS
Phytopathology. Animal pests. Plant and forest protection
PLANT EXTRACTS
Plants
RETARDATEUR DE CROISSANCE
Root growth
Seed germination
Solvents
Sweet potatoes
WEEDS
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Summary:Sequential extraction and chromatographic procedures were used to isolate inhibitors of yellow nutsedge growth from sweet potato periderm tissue. Most of the inhibitory activity was found in a single high pressure liquid chromatography peak that contained 1.2% of the periderm dry weight. Concentration-response data indicated that yellow nutsedge is highly sensitive to this fraction. Several other fractions inhibited yellow nutsedge root growth, but they did not compose a major portion of the inhibitory capacity of the periderm extracts.
ISSN:0890-037X
1550-2740
DOI:10.1017/s0890037x00039397