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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Veröffentlicht in:	Weed technology 1994-01, Vol.8 (1), p.168-171
Hauptverfasser:	Harrison, H.F. Jr, Peterson, J.K
Format:	Artikel
Sprache:	eng
Schlagworte:	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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Zusammenfassung:	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