Effects of Allelochemical of Jatropha curcas L. Leachate on Germination and Shooting of Four (4) Pepper (Capsicum) Species in Keffi Nasarawa State, Nigeria
A laboratory study was carried out to evaluate the effect of leaf aqueous extract of Jatropha curcas L. on germination and early shoot growth of four pepper (Capsicum) species at the Department of Plant Science and Biotechnology Laboratory, Nasarawa State University, Keffi, Nigeria. Data collected were percentage inhibition and shoot length. Results from the experiment indicated that there was significant difference between the treatments (4%, 8%, 12%, 16% and 20%) and the control (0%) and within the treatments at P ≤ 0.05. All the test crops were affected by different concentrations of the aqueous extracts and the most pronounced effect was at 12%, 16% and 20% concentrations of the extracts in all cases respectively. Germination, shooting were inhibited completely at higher concentrations in the cases when compared with the control. The inhibitory effect was found to be concentration dependent and may be due to the presence of water soluble allelochemicals like phenols, tannins and azeliac acid.
Cite this paper
Ubazi, C. C. , Abdulkarim, B. M. , Onovo, J. C. , Ewule, R. O. , Asala, S. W. and Idachaba, P. N. (2020). Effects of Allelochemical of Jatropha curcas L. Leachate on Germination and Shooting of Four (4) Pepper (Capsicum) Species in Keffi Nasarawa State, Nigeria. Open Access Library Journal, 7, e6098. doi: http://dx.doi.org/10.4236/oalib.1106098.
Ashrafi, Z.Y., Sadeghi, S., Mashhadi, H.R. and Hassan, M.A. (2008) Allelopathic Effects of Sunflower (Helianthus annus) on Germination and Growth of Wild Barley (Hordeum spontaneum). Journal of Agricultural Technology, 4, 219-229.
Nazir, T., Uniyal, A.K. and Todria, N.P. (2007) Allelopathic Behaviour of three Medicinal Plant Species on Traditional Agricultural Crops of Garhwal Himalaya, India. Agroforestry Systems, 69, 183-187. https://doi.org/10.1007/s10457-006-9023-8
Appleton, B., Berrier, R., Harris, R., Alleman, D. and Sawson, L. (2009) The Walnut Tree: Allelopathic Effects and Tolerant Plants. Virginia Cooperative Extension. http://pubs.ext.vt.edu/430/430-021/430-021_pdf.pdf
Pasqualeto, A., Costa, A.L.M., Silva, A.A. and Sidiyma, C.S. (2007) The Occurrence of Soybean Crop (L.) Menrril Weeds) Emsucesao to Safrinha Cultures in the No-Tillage System. https://academicjournals.org/journal/AJAR/article-full-text-pdf/9E9093242737
Corsato, J.M., Fortes, A.M.T., Santorum, M. and Leszczynski, R. (2010) Efeito Alelopatico do Extrato Aquoso de Folhas de Girasol sobre a Germinacao de soja e picao-preto. Semina: Cienciasagrarias, 31, 353-360. https://doi.org/10.5433/1679-0359.2010v31n2p353
Brittaine, R. and Lutaladio, N. (2010) Jatropha: A Smallholder Bioenergy Crop. The Potential for Pro-poor Development Integrated Crop Management. Volume 8, IFAD/FAO. http://www.fao.org
Achten, W.M.J., Maes, W.H., Aerts, R., Verchot, L., Trabucco, A., Mathijs, E., Singh, V.P. and Muys, B. (2009) Jatropha: From Global Hype to Local Opportunity. Journal of Arid Environments, 74, 164-165. https://doi.org/10.1016/j.jaridenv.2009.08.010
Ullah, F., Ullah, A., Wazir, S.M. and Shinwar, Z.K. (2014) Phytotoxic Effects of Safflower Yellow Exposure on Seed Germination and Early Seedling Growth of Canola (Brassica napus L.). Pakistan Journal of Botany, 46, 1741-1746.
Rejila, S. and Vijayakumar, N. (2011) Allelopathic Effect of Jatropha curcas L on Selected Intercropping Plants (Green Chili and Sesame). Journal of Phytology, Humnabad, 3, 1-3.
Husain, M.I., Gonzlez, I. and Reigosa, M.J. (2010) Phytotoxic Effects of Allelochemicals and herbicides on Photosynthesis, Growth and Carbon Isotope Discrimination in Lactuca sativa. Allelopathy Journal, 26, 157-174.
Hassan, A., Mukhtar, F.B. and Mohammed, I.M. (2013) Allelopathic Effects of Jatropha curcas L. leachate on Germination and Early Seedling Growth of Five (5) Agricultural Crops in Kano, Nigeria. Bajopas, 6, 53-56. https://doi.org/10.4314/bajopas.v6i2.12
Abugre, S. and Sam, S.Q.J. (2010) Evaluating the Allelopathic Effect of Jatropha curcas Aqueous Extract on Germination, Plumule and Radicle Length of Crops. International Journal of Agriculture and Biology, 12, 769-772.
Igbinosa, O.O., Igbinosa, E.O. and Aiyegoro, O.A. (2009) Antimicrobial Activity and Phytochemical Screening of Stem Bark Extracts from Jatropha curcas (Linn). African Journal of Pharmacy and Pharmacology, 3, 58-62.
Maharjan, S., Shrestha, B.B., Jha, P.K. and Academy, R.M. (2007) Allelopathic Effects of Aqueous Extract of Leaves of Parthenium hysterophorus L. on Seedling Growth of some Cultivated and Wild Herbaceous Species. Scientific World, 5, 33-39. https://doi.org/10.3126/sw.v5i5.2653
Ma, L., Wu, H., Bai, R., Zhou, L., Yuan, X. and Hou, D. (2011) Phytotoxic Effects of Stellera chamaejasme L. Root Extract. African Journal of Agriculture Research, 6, 1170-1176.
