Bioherbicidal evaluation of Sorghum halepense (L.) rhizome extract and its bioactive components against selected weed species
2022
Authors:
Nestorović Živković, JasminaDmitrović, Slavica
Bjedov, Ivana
Nešić, Marija
Jovanović, Vladan
Gašić, Uroš
Mišić, Danijela
Contributors
Milutinović, MilicaDocument Type:
Conference object (Published version)
,
© 2022 by the Serbian Plant Physiology Society
Metadata
Show full item recordAbstract:
Nowadays, one of the priorities in agricultural production is the usage of natural bioherbicides
for weed control, instead of commercial herbicides which have a strong negative effect on human
health and the environment. Due to its widespread distribution and the economic losses it causes
to the global economy, Sorghum halepense has been described as one of the world’s most invasive
plant and a dangerous weed. We here examined the possibility to exploit the phytotoxic and bioherbicide potential of this species against other weed species: Amaranthus retroflexus, Chenopodium murale and Datura stramonium. The rhizome extracts of S. halepense (concentration of 0.01,
0.1, 1, 2, and 5 mg/ml) notably reduce the final seed germination of C. murale and D. stramonium,
especially at the highest investigated concentration, while A. retroflexus seed germination was
not affected. Early seedling growth of A. retroflexus was stimulated by the rhizome extract, while in
C. murale and D. stramonium the values of growth parameters were reduced. As revealed by UHPLC/
DAD/qqqMS2
metabolic profiling of polyphenolics, major bioactive compounds in S. halepense rhizom
extract were phenolic acids: p-hydroxybensoic acid (pHB A), chlorogenic acid (CHL A), and p-coumaric acid (pCUM A). Analysis of bioherbicide potential of these compounds, applied in a series of
concentrations (0.005, 0.01, 0.1, 0.2, and 0.3 mg/ml), revealed that pHB A, CHL A, and pCUM A, are
the main responsible for the overall effects of S. halepense rhizom on selected weeds. These results
highlight Sorghum halepense (L.) rhizomes, and their main constituents, as potent bioherbicides.
Keywords:
bioherbicide; Sorghum halepense; p-hydroxybensoic acid; chlorogenic acid; p-coumaric acidFunding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200007 (University of Belgrade, Institute for Biological Research 'Siniša Stanković') (RS-MESTD-inst-2020-200007)
In:
- Milutinović M, editor. Book of Abstracts: 4th International Conference on Plant Biology and 23rd SPPS Meeting; 2022 Oct 6-8; Belgrade, Serbia. Belgrade: Serbian Plant Physiology Society; 2022. p. 121.