Auto-Resistance to Seeds Germination of Invasive Acacia saligna Trees at Al-Jabal Al-Akhdar region


  • Sami Mohammed Salih Biology Department, Education Faculty, Omar Al-Mukhtar University, Al-Bayda, Libya



Auto-resistance, Acacia saligna, germination, Al-Jabal Al-Akhdar region.


Sustaining the vegetation cover in Libya represents the most important priority that must be taken into account by the Ministry of Agriculture. This study was conducted in the laboratory of the Department of Biology, Faculty of Education, Omar Al-Mukhtar University, Al-Bayda, Libya, to investigate the possibility of controlling seed germination of Acacia saligna trees by using aqueous extracts (flower- seeds- leaves - bark) at different concentration (10, 20 and 40%). The results showed highly significant differences in decreasing a germination percentage and increasing an average germination time, between aqueous extracts and concentrations relative to control, where a flowers extract gave the largest effect on inhibitory germination percentages over the rest of other extracts. Commonly 40% concentration was the most toxic effect on A.saligna seed germination. The study concluded of Acacia salgina trees possess an autotoxicity that can be used to combat thier invasion and expansion in agricultural lands.


Abd El Gawad, A. M., and El-Amier, Y. A. (2015). Allelopathy and Potential Impact of Invasive Acaciasaligna (Labill.) Wendl. on Plant Diversity in the Nile Delta Coast of Egypt. International Journal of Environmental Research, 9(3):923-932.

Akkari, H., Darghouth, M. A., and Ben Salem, H. (2008). Preliminary investigations of the anti-nematode activity of Acacia cyanophylla Lindl.: Excretion of gastrointestinal nematode eggs in lambs browsing A. cyanophylla with and without PEG or grazing native grass. Small Ruminant Research, 74(1), 78-83.

Al-Huqail, A. A., Behiry, S. I., Salem, M. Z., Ali, H. M., Siddiqui, M. H., and Salem, A. Z. M. (2019). Antifungal, antibacterial, and antioxidant activities of Acacia saligna (Labill.) HL Wendl. flower extract: HPLC analysis of phenolic and flavonoid compounds. Molecules, 24(4): 700.‏

Aly, A. E., and Hassan, M. T. H.(1993). Atlas of Legume plants of the North-West Coast of Egypt . Rose El-Youssef New Presses ,Cairo ,Egypt ,pp.27 – 30.

Bartz, R., and Kowarik, I. (2019). Assessing the environmental impacts of invasive alien plants: a review of assessment approaches. NeoBiota 43, 69–99.

Cheng, F., and Cheng, Z. (2015). Research progress on the use of plant allelopathy in agriculture and the physiological and ecological mechanisms of allelopathy. Frontiers in plant science, 6, 1020.

Dafaallah, A. B., Mustafa, W. N., and Hussein, Y. H. (2019). Allelopathic Effects of Jimsonweed (Datura Stramonium L.) Seed on Seed Germination and Seedling Growth of Some Leguminous Crops. International Journal of Innovative Approaches in Agricultural Research, Vol. 3 (2), 321-331.

Das, M., Sharma, M., and Sivan, P. (2017). Seed germination and seedling vigor index in Bixaorellana and Clitoria ternatea. Int. J. Pure App. Biosci. vol 5 (5): 15-19.

El Ayeb‐Zakhama, A., Sakka‐Rouis, L., Bergaoui, A., Flamini, G., Ben Jannet, H., and Harzallah‐Skhiri, F. (2015). Chemical composition and allelopathic potential of essential oils obtained from Acacia cyanophylla Lindl. cultivated in Tunisia. Chemistry & biodiversity, 12(4): 615-626.‏

Favaretto, A., Scheffer-Basso, S. M., and Perez, N. B. (2017). Autotoxicity in tough Lovegrass (Eragrostisplana). Planta Daninha, 35.pp1-7‏.

Ganatsas, P., Tsakaldimi, M., and Thanos, C. (2008). Seed and cone diversity and seed germination of Pinus pinea in Strofylia Site of the Natura 2000 Network. Biodiversity and Conservation, 17: 2427–2439.

Maccioni, A., Santo, A., Falconieri, D., Piras, A., Farris, E., Maxia, A., and Bacchetta, G. (2020). Phytotoxic effects of Salvia rosmarinus essential oil on Acacia saligna seedling growth. Flora, 269, 151639 pp1-8.

Marzialetti, F., Bazzichetto, M., Giulio, S., Acosta, A. T., Stanisci, A., Malavasi, M., and Carranza, M. L. (2019). Modelling Acacia saligna invasion on the Adriatic coastal landscape: An integrative approach using LTER data. Nature Conservation, 34, 127-144.

Maslin, B. R. (1974). Studies in the genus, Acacia, 3: The taxonomy of A. saligna (Labill.) H. Wendt. Nuytsia 1(4): 332-340.

Maslin, B. R. (2015). Synoptic overview of Acacia sensulato (Leguminosae: Mimosoideae) in East and southeast Asia. Gard. Bull. Singapore, 67 pp. 231-250.

Masoud, M., Omar, M. A. K., Abugarsa, S. A. (2018). Allelopathic effects of aqueous extract from Satureja thymbra l. on seed germination and seedling growth of Pinus halepensis Mill. And Ceratonia siliqua L. Libyan Journal of Science & Technology, 7(1): 17-20.

Midgley, S. J., and Turnbull, J. W. (2003). Domestication and use of Australian Acacias: Case studies of five important species. Australian Systematic Botany 16(1): 89-102.

Nsikani, M. M., van Wilgen, B. W., Bacher, S., and Gaertner, M. (2018). Re-establishment of Protearepens after clearing invasive Acacia saligna: Consequences of soil legacy effects and a native nitrophilic weedy species. South African Journal of Botany, 116, 103-109.

Othman, B., Haddad, D., and Tabbache, S. (2018). Allelopathic Effects of Sorghum halepense (L.) Pers. and Avena sterilis L. Water Extracts on Early Seedling Growth of Portulaccaoleracea L. and Medicago sativa L. International Journal of Medical Science, Vol. 5(10): 7-12.

Richardson, D. M., Pysek, P., Rejmánek, M., Barbour, M. G., Panetta, F. D., and West, C. J. (2000). Naturalization and invasion of alien plants: concepts and definitions. Diversity and distributions, 6(2), 93-107.

Salih, S. M., Abdulrraziq, A. A., and Salih, S. M. (2020). In vitro treatment of Acacia saligna (Labill) trees seeds dormancy. Journal BAYAN, 7: 43-54.

Salih, S. M., and Abdulrraziq, A. A. (2021). Phytotoxicity test of Acacia saligna trees on germination seeds of some leguminous crops. Journal BAYAN, 9: 391-54.

Souza-Alonso, P., Rodríguez, J., Gonzalez, L., and Lorenzo, P. (2017). Here to stay. Recent advances and perspectives about Acacia invasion in Mediterranean areas. Annals of Forest Science, 74(3), 1-20.

Suhaili, M. F., Metali, F., Sukri, R. S., and Taha, H. (2019). Allelopathic potential of invasive Acacia holosericea on germination and growth of selected paddy varieties. Research on Crops, 20(1), 236-242.

Van Wilgen, B.W., Forsyth, G.G., Le Maitre, D.C., Wannenburgh, A., Kotzé, J.D.F., van den Berg, E., Henderson, L., (2012). An assessment of the effectiveness of a large, nationalscale invasive alien plant control strategy in South Africa. Biol. Conserv. 148, 28–38.

Yousif, M. A. I., Wang, Y. R., and Dali, C. (2020). Seed dormancy overcoming and seed coat structure change in Leucaena leucocephala and Acacia nilotica. Forest Science and Technology, 16(1): 18-25




How to Cite

Salih , S. M. (2021). Auto-Resistance to Seeds Germination of Invasive Acacia saligna Trees at Al-Jabal Al-Akhdar region. Scientific Journal for Faculty of Science-Sirte University, 1(2), 20–24.