Field evidence of the allelopathic properties of Dicranopteris linearis

Chong Tet-Vun, Ismail Sahid

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

This study investigates the suspected allelopathic influence of Dicranopteris linearis on the densities of five Malaysian common broad-leaved weeds (Asystasia gangetica, Melastoma malabathricum, Ageratum conyzoides, Mimosa pudica, and Crassocephalum crepidioides) and on five Malaysian common grasses (Echinochloa colona, Eleusine indica, Paspalum conjugatum, Dactyloctenium aegyptium, and Chloris barbata). The allelopathic effect of D. linearis-infested soil on the emergence and growth of these weed species also was tested. The results reveal that D. linearis strongly reduced the weed density in its vicinity. Ageratum conyzoides and E. colona, the most sensitive weed species, were not found in the D. linearis-infested area. In the greenhouse study, the D. linearis-infested soil also highly inhibited the emergence and growth of the bioassay species. The I50 of the bioassay seeds was reached when the ratio of the infested soil (IS) to uninfested soil (UIS) was 99.55:0.45%. The I50 for the fresh weight of the bioassay seedlings was 81.27:18.73%. For the height of the bioassay seedlings, the I50 was 90.40:9.60%. In this study, there was no obvious difference in the physicochemical properties between the IS and the UIS soils. However, the levels of water-soluble phenolic compounds in the IS were significantly higher than those in the UIS. Dicranopteris linearis might exert its allelopathic influence on weed density, emergence, and growth via its secretion of these phenolic compounds into the soil.

Original languageEnglish
Pages (from-to)59-67
Number of pages9
JournalWeed Biology and Management
Volume6
Issue number2
DOIs
Publication statusPublished - Jun 2006

Fingerprint

weed
soil
weeds
bioassay
bioassays
Echinochloa colona
Ageratum conyzoides
phenolic compound
Asystasia gangetica
phenolic compounds
Paspalum conjugatum
Dactyloctenium aegyptium
Melastoma malabathricum
Dicranopteris linearis
seedling
Eleusine indica
Mimosa pudica
Chloris
seedlings
physicochemical property

Keywords

  • Allelopathy
  • Dicranopteris linearis
  • Infested soil
  • Weed density
  • Weed growth

ASJC Scopus subject areas

  • Ecology
  • Plant Science
  • Agronomy and Crop Science

Cite this

Field evidence of the allelopathic properties of Dicranopteris linearis. / Tet-Vun, Chong; Sahid, Ismail.

In: Weed Biology and Management, Vol. 6, No. 2, 06.2006, p. 59-67.

Research output: Contribution to journalArticle

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