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International Journal of Innovation and Scientific Research
ISSN: 2351-8014
 
 
Saturday 26 May 2018

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Allelopathic activity of extracts from leaves of Ziziphus spina-christi collected in five Tunisian ecotypes


Volume 20, Issue 2, February 2016, Pages 333–342

 Allelopathic activity of extracts from leaves of Ziziphus spina-christi collected in five Tunisian ecotypes

M. Elaloui, I. Soltani, A. Laamouri, A. Ennajah, and S. Houcine

Original language: English

Received 11 July 2015

Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract


This work was performed to investigate the potential allelopathic effects of Ziziphus spina-christi aqueous extracts (AE) on the seed germination and seedling growth of Triticum durum L. and Raphanus sativus L. Plant materiel (leaves) were collected from five ecotypes (INRGREF, Dgéuche, Kébeli, Nafta and Tozeur). Total phenolic and flavonoid contents have been done by Folin-Ciocalteu reagent and colorimetric assay respectively. The germination efficiency, plumule and radicule length of Triticum durum and Raphanus sativus were completely inhibited at the highest concentration (100 mg/L) of aqueous extracts. Raphanus sativus was more sensitive (89.92% - 85.29%), while Triticum durum was more adopted (90.699% - 88.17%) to aqueous extracts.
Extracts were more effective in reducing the early seedling growth than in suppressing the seed germination. The inhibitory effect of these extracts occurred much more on the root length. Considerable differences in total phenolic contents (860.20 µgEAG/gDW) and flavonoids (1989.52 µgEQ/gMS) were found. The Ziziphus spina-christi leaf extracts could justify the use of this specie as an herbicide and can give a great success in agriculture.


Author Keywords: Triticum durum, Raphanus sativus, seedling development, germination inhibition, phenolic content, herbicide.


How to Cite this Article


M. Elaloui, I. Soltani, A. Laamouri, A. Ennajah, and S. Houcine, “Allelopathic activity of extracts from leaves of Ziziphus spina-christi collected in five Tunisian ecotypes,” International Journal of Innovation and Scientific Research, vol. 20, no. 2, pp. 333–342, February 2016.