[ Potentiel allélopathique du figuier de barbarie « Opuntia ficus-indica (L.) Mill » sur la germination et la croissance du jujubier « Ziziphus lotus (L.) Desf. » ]
Volume 3, Issue 1, May 2013, Pages 205–214
N. Rsaissi1, M. Bouhache2, and Bouchaib Bencharki3
1 Laboratoire d'Agroalimentaire et Santé, Université Hassan I, 26000 Settat, Morocco
2 Laboratoire de Malherbologie, IAV Hassan II, 10000 Rabat, Morocco
3 Faculté des sciences et techniques de Settat, UFR: G. R. N. C, Université Hassan I, 26000 Settat, Morocco
Original language: French
Copyright © 2013 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.
Phytoecological observations made in agro-ecosystems in the Chaouia region revealed that the tufts of wild jujube "Ziziphus lotus (L.) Desf." enclaved in the hedges of Barbary fig "Opuntia ficus-indica (L.) Mill. " slow their biological activity and their growth and ends by being eliminated completely. The hypothesis that put into play the phenomenon of allelopathy as a mechanism of interference between the two species has been verified in this study. Thus, bioassays were conducted in vitro in the laboratory in order to test the effects of aqueous and hydro-ethanolic extracts of aerial and belowground parts of Barbary fig on seed germination and seedling growth of wild jujube. A dosage of total phenols by Folin-Ciocalteu reagent and a subsequent identification of these phenols compounds have been made. The results showed that these phenols are present in both stems and roots of Barbary fig, with varying concentrations (6.91 to 42.75 mg EAG/g of dry weight) according organ of the plant and the solvent used in the extraction. Very significant inhibitory effects up to 100% were observed on the kinetics and the final rate of jujube seed germination as well as its growth. These results allowed us to infer the existence of a strong correlation between allelopathic effects of Barbary fig on jujube and the concentration of total phenols content in different parts of this species of cactus.
Author Keywords: Opuntia ficus-indica (L.) Mill, Allelopathy, Ziziphus lotus (L.) Desf, Phenols, Germination, Growth.
Volume 3, Issue 1, May 2013, Pages 205–214
N. Rsaissi1, M. Bouhache2, and Bouchaib Bencharki3
1 Laboratoire d'Agroalimentaire et Santé, Université Hassan I, 26000 Settat, Morocco
2 Laboratoire de Malherbologie, IAV Hassan II, 10000 Rabat, Morocco
3 Faculté des sciences et techniques de Settat, UFR: G. R. N. C, Université Hassan I, 26000 Settat, Morocco
Original language: French
Copyright © 2013 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
Phytoecological observations made in agro-ecosystems in the Chaouia region revealed that the tufts of wild jujube "Ziziphus lotus (L.) Desf." enclaved in the hedges of Barbary fig "Opuntia ficus-indica (L.) Mill. " slow their biological activity and their growth and ends by being eliminated completely. The hypothesis that put into play the phenomenon of allelopathy as a mechanism of interference between the two species has been verified in this study. Thus, bioassays were conducted in vitro in the laboratory in order to test the effects of aqueous and hydro-ethanolic extracts of aerial and belowground parts of Barbary fig on seed germination and seedling growth of wild jujube. A dosage of total phenols by Folin-Ciocalteu reagent and a subsequent identification of these phenols compounds have been made. The results showed that these phenols are present in both stems and roots of Barbary fig, with varying concentrations (6.91 to 42.75 mg EAG/g of dry weight) according organ of the plant and the solvent used in the extraction. Very significant inhibitory effects up to 100% were observed on the kinetics and the final rate of jujube seed germination as well as its growth. These results allowed us to infer the existence of a strong correlation between allelopathic effects of Barbary fig on jujube and the concentration of total phenols content in different parts of this species of cactus.
Author Keywords: Opuntia ficus-indica (L.) Mill, Allelopathy, Ziziphus lotus (L.) Desf, Phenols, Germination, Growth.
Abstract: (french)
Les observations phytoécologiques effectuées dans les agro-écosystèmes de la région de la Chaouia ont permis de constater que les touffes du jujubier « Ziziphus lotus (L.) Desf. » enclavées dans les haies au figuier de barbarie « Opuntia ficus-indica (L.) Mill. » ralentissent leur activité biologique et leur croissance et finissent par être éliminées définitivement. L'hypothèse de mise en jeu du phénomène d'allélopathie comme mécanisme d'interférence entre les deux espèces a été vérifié dans cette étude. Ainsi, des essais biologiques ont été conduits in vitro au laboratoire dans le but de tester les effets des extraits aqueux et hydro-éthanoliques des parties aérienne et souterraine du figuier de barbarie sur la germination des graines et la croissance des plantules du jujubier. Un dosage des phénols totaux par la méthode de Folin-Ciocalteu et l'identification de ces composés phénoliques ont été effectués. Les résultats obtenus ont montré que ces phénols sont présents dans les raquettes et les racines du figuier de barbarie, avec des concentrations variantes (6,91 à 42,75 mg EAG/g matière sèche) selon l'organe de cette plante et le solvant utilisé dans l'extraction. Des effets inhibiteurs très significatifs allant jusqu'à 100% ont été observés sur la cinétique et le taux de germination des grains du jujubier ainsi que sur sa croissance. Ces résultats nous a permis de déduire l'existence d'une forte corrélation entre les différents effets allélopathiques du figuier de barbarie observés sur le jujubier et la concentration en phénols totaux contenus dans les différentes parties de cette espèce de cactus.
Author Keywords: Opuntia ficus-indica (L.) Mill, Allélopathie, Ziziphus lotus (L.) Desf, Phénols, Germination, Croissance.
How to Cite this Article
N. Rsaissi, M. Bouhache, and Bouchaib Bencharki, “Allelopathic potential of Barbary fig « Opuntia ficus-indica (L.) Mill » on the germination and growth of wild jujube « Ziziphus lotus (L.) Desf. »,” International Journal of Innovation and Applied Studies, vol. 3, no. 1, pp. 205–214, May 2013.
