Evidence That Sweet Potato (Ipomoea batatas) is Allelopathic to Yellow Nutsedge (Cyperus esculentus)

In field studies, ‘Regal’ sweet potato greatly reduced yellow nutsedge growth when the two species were grown together using standard cultural practices. At the end of the growing season, yellow nutsedge shoot dry weight per m2 in plots where the two species were planted together was less than 10% o...

Full description

Saved in:
Bibliographic Details
Published in:Weed science 1991-04, Vol.39 (2), p.308-312
Main Authors: Harrison, Howard F., Peterson, Joseph K.
Format: Article
Language:English
Subjects:
Agricultural soils
Agronomy. Soil science and plant productions
ALELOPATIA
ALLELOPATHIE
Allelopathy
Biological and medical sciences
CAROLINA DEL SUR
CAROLINE DU SUD
COMPETENCIA BIOLOGICA
COMPETITION BIOLOGIQUE
CONTROL BIOLOGICO
CYPERUS ESCULENTUS
DESHERBAGE
ESCARDA
EXTRACTOS VEGETALES
EXTRAIT D'ORIGINE VEGETALE
Fundamental and applied biological sciences. Psychology
Generalities, botany, ecology, damages, economic importance
INDICE DE CRECIMIENTO
INHIBICION
INHIBITION
IPOMOEA BATATAS
LUTTE BIOLOGIQUE
MALEZAS
MAUVAISE HERBE
Minerals
Parasitic plants. Weeds
Periderm
PERIDERME
PERIDERMIS
Phytopathology. Animal pests. Plant and forest protection
Plant growth
Plant roots
Planting
Plants
RACINE
RAICES
RENDEMENT
RENDIMIENTO
Special Topics
Sweet potatoes
TAUX DE CROISSANCE
TUBERCULE
TUBERCULO
Tubers
Weeds
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In field studies, ‘Regal’ sweet potato greatly reduced yellow nutsedge growth when the two species were grown together using standard cultural practices. At the end of the growing season, yellow nutsedge shoot dry weight per m2 in plots where the two species were planted together was less than 10% of shoot weight in plots where nutsedge was grown alone. Presence of yellow nutsedge did not markedly affect sweet potato growth. When grown together in a greenhouse experiment designed to minimize the competitive effects of sweet potato on yellow nutsedge, yellow nutsedge growth was reduced more than 50% by sweet potato 8 and 12 weeks after planting. The most polar fraction of serially extracted sweet potato periderm tissue was highly inhibitory to yellow nutsedge root growth. These results indicate that sweet potato interference with yellow nutsedge under field conditions is partially due to allelopathy.
ISSN:0043-1745
1550-2759
DOI:10.1017/S0043174500071654