Allelopathic effects of thuja orientalis L. and melia azedarch L. on seed germination of penisitum americanum L

  • Authors

    • Saeeda Bibi M.Phil scholar sardar bahadur khan women's university Quetta, Pakistan
    • Rukhsana Jabeen
    • Asma Abdul Hayee
    • Saima Johar
    • Shehnaz Sher Ahmed
    • Shaista Hameed
    • Mahpara Fida Ahmed
  • Meliaazedarach.L, Thujaorientalis.L, Pennesitiumamericanum.L, Aqueous Extract, Seed Germination, Seedling Growth. Fresh and Dry Weight, Allelochemicals.
  • Aqueous extract of leaves, bark and seeds of Meliaazedarach.L and Thujaorientalis L. were assayed at 1, 5 and 10g/L concentration with different time period to check their effect on seed germination, fresh and dry weight and seedling growth of Pennesitiumamericanum L. Result revealed that aqueous extracts of both plants at all concentration and time period had significantly inhibited seed germination ofP.ammericanum L. when compared with control. The inhibitory effect increases with increasing concentration of extracts and time period. The bark extract of all concentration of T.orientalis in 24hr and 48hrs show stimulation in seedling growth while other parts and extracts of all parts of M.azedarachin all concentration and time period show inhibition in all parameters. The order of inhibition when compared different parts of M.azedarch was seeds >bark > leaves while that of T.orientalis was leaves > bark >seeds. Hence it is concluded that aqueous extract of these plant contain water soluble allelochemicals which inhibit the seed germination and seedling growth of P. americanum L. It is suggested that these chemicals may be used as herbicides.

  • References

    1. Alagesaboopathi, C. 2010. Allelopathic effect of Centellaasiatica aqueous extracts on Pearl millet (Pennisetumtyphoides L.) and Cowpea (Vignaunguiculata WALP.). Pak. J. Weed Sci. Res. 16(1): 67-71.
    2. Atallah F. Mekhlif.2009. Effect of Meliaazedarach L. and Ailanthus altissimaSwingle Extracts on the Larva Alimentary Tract and Growth of Black Cutworm, AgrotisipsilonHufn. (Lepidoptera: Noctuidae). J. Raf. Sci., Vol. 20, No.2, pp 8- 18.
    3. Fritz, D. A.P., J.S.Bernardi., B.M. Haas.,S.A.D.L.Ascoli., Bordignon, G.V. Bordignon., Poser.2007. Germination and growth inhibitory effects of Hypericummyrianthum and H.polyanthemum extracts on Lactuca sativa L, Revistabrasileira de Farmacognosia. Brazilian Journal of Pharmacognosy, 17 (1): 44-48.
    4. Hussain,F., B., Ahmed and I, Ilahi. 2010. Allelopathic effects of Cenchrusciliaris L. and Bothriochloapertusa (L.) A.camus. Pak. J. Bot., 42(5): 3587-3604.
    5. Khan, M., Hussain, F., Musharaf, S. (2011). Allelopathic potential of RhazyastrictaDecne on germination of Pennisetumtyphoides. International Journal of Biosciences (IJB), 1 (4): 80-85.
    6. Isfahan,M.N., M, Shariat .2007. The effect of some allelochemicals on seed germination of Coronillavaria L. seeds. American-Eurasian J. Agric. & Environ. Sci, 2 (5): 534-538.
    7. Lungu, L., C.L, Popa, J, Morris and M, Savoiu. 2011.Evaluation of phytotoxic activity of Meliaazedarach L. extracts on Lactuca sativa L. Romanian Biotechnological Letters,16:(2)
    8. Oyun, M.B.2006. Allelopathic potentialities of Gliricidiasepium and Acacia auriculiformis on the germination and seedling Vigour of Maize (Zea mays L.) American journal of agricultural and biological science 1 (3): 44-47.
    9. Raja Nagappan.2012. Impact of Meliaazedarach Linn. (Meliaceae) Dry Fruit Extract, Farmyard Manure and Nitrogenous Fertilizer Application against Cabbage Aphid Brevicornyebrassicae Linn. (Homoptera: Aphididae) in Home Garden, Asian Journal of Agricultural Sciences 4(3): 193-197.
    10. Siddiqui, S, S Bhardwaj, S.S. Khan and M.K. Meghvanshi.2009. Allelopathic effect of different concentration of water extract of Prosopsisjuliflora leaf on seed germination and radical length of Wheat (Triticumaestivum Var-Lok-1).Ameaican-Eurasion Journal of Scientific research, 4(2): 81-84.
    11. Singh, H.P, R.K,Kohli, D.R., Batish, P.S. Kaushal.1999. Allelopathy of Gymnospermous trees.J.For.Res, (4): 245-254.
    12. Smith, M.W.,M.E., Wolf, B.S., Cheary and M.W. Carroll, Allelopathy of Bermudagrass, Tall Fescue, Redroot pigweed, and Cutleaf evening primrose on Pecan. Hort Science, 36(6):1047-1048.
    13. Samreen, u., Hussain, F., Sher, Z. (2009). Allelopathic potential of Calotropisprocera (AIT.)AIT. Pak. J. Pl. Sci., 15 (1): 7-14.
    14. Tadele,D and D,Teketay.2010. Effects of extracts from leaves of Eucalyptus globulusLabill on seed germination and earl growth of Oleaeuropaea L. subsp. cuspidate.CONFUSE.
    15. Terzi, I.2008. Allelopathic effects of Juglone and decomposed walnut leaf juice on muskmelon and cucumber seed germination and seedling growth. African Journal of Biotechnology Vol. 7 (12), pp. 1870-1874.
    16. Terzi,I and I. Kocaçalıskan.2009. Alleviation of juglone stress by plant growth regulators in germination of cress seeds. Scientific Research and Essay Vol. 4 (5) pp. 436-439.
    17. Wirat Phuwiwat1, Watcharin Wichittrakarn1, Chamroon Laosinwattana1 and Montinee Teerarak1.2012. Inhibitory Effects Of MeliaAzedarach L. Leaf Extracts On Seed Germination And Seedling Growth Of Two Weed Species, Pak. J. Weed Sci. Res., 18: 485-492.
  • Downloads

  • How to Cite

    Bibi, S., Jabeen, R., Hayee, A. A., Johar, S., Ahmed, S. S., Hameed, S., & Ahmed, M. F. (2016). Allelopathic effects of thuja orientalis L. and melia azedarch L. on seed germination of penisitum americanum L. International Journal of Basic and Applied Sciences, 5(2), 140-143.