Issue Date
December 2019
Abstract
This study focused on the isolation, characterization and allelopathic activity assessment of phytotoxic compounds present in the weed Talinum paniculatum (Jacq.) Gaertn. The leaves of T. paniculatum were sequentially extracted with petroleum ether, dichloromethane, ethyl acetate, and ethanol-water (1:1 v/v). Using the lettuce seed assay, the dichloromethane extract was found to be the most bioactive extract having an IC50 of 477 ppm. Phytochemical screening of the dichloromethane extract revealed the presence of saponins, steroids, terpenoids, and glycosides. Isolation of the major compound from the extract was carried out using open column chromatography. UV-Vis and IR spectral analyses, melting point determination, phytochemical screening, and chromatographic mobility showed that most active extracts in T. paniculatum could be β-sitosterol. The dose-response whole pot assays revealed that dichloromethane extract of T. paniculatum exhibited bioherbicidal potential against Cyperus iria, one of the world’s worst weeds of rice.
Source or Periodical Title
U.P. Los Baños Journal
ISSN
01171461
Page
141-152
Document Type
Article
Frequency
annually
Physical Description
graphs
Language
English
Subject
Allellopathy, Plants
Recommended Citation
Salamanez, Kevin C.; Sabaupan, Liezel Angelique L.; Mangao, Arnoldus M.; and Rodriguez, Evelyn B., "Potential allelopathic activity of dichloromethane extract from the leaves of talinum paniculatum (jacq.) gaertn against cyperus iria" (2019). Journal Article. 3950.
https://www.ukdr.uplb.edu.ph/journal-articles/3950