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2017 | 09 |

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Growth rate and biomass production of Entandrophragma angolense (Welw.) seedlings as affected by different organic soil amendments

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Entandrophragma angolense is a tropical tree species with a very slow growth rate. To overcome this barrier, a study on the effect of organic amendment on the growth rate of Entandrophragma angolense seedlings was conducted in the nursery section of the Department of Forestry and Wildlife, University of Benin, Benin City, Nigeria. Herein, 2kg polythene pots, each containing top soil were all amended with Poultry droppings (PRD), Cow dung (CWD) and Compost (CPT) at a ratio of 2:1, while top soil alone served as the control. Employing a completely randomized design (CRD), growth variables were recorded on a fortnight basis. The seedlings were assessed for height, number of leaves and collar diameter for a total period of 20 weeks. Fresh weights and total dry weights of the seedlings were also determined at the end of the experiment. No significant difference (p>0.05) was observed in the effect of organic amendments on the plant mean height and number of leaves throughout the study period, however, a significant difference was observed in collar diameter at 2 weeks after treatment and 12 weeks after treatment alone. Organic amendment was found to influence general biomass production in the specie, although there was no significant difference (p>0.05) in stem biomass production. Conclusively, organic amendment can be said not to have significantly (p>0.05) affected the growth of E. angolense, while this cannot be said of the biomass production, albeit at a low level of significance.

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  • Moist Forest Research Station, Forestry Research Institute of Nigeria, Benin, Nigeria
  • Department of Forestry and Wildlife, Faculty of Agriculture, University of Benin, Benin, Nigeria
  • Department of Forestry and Wildlife, Faculty of Agriculture, University of Benin, Benin, Nigeria
  • Moist Forest Research Station, Forestry Research Institute of Nigeria, Benin, Nigeria


  • [1] Rafiqul H.M., Hossian M.K., Mpoinddon M., Hosqure M.M (2004): Effect of inorganic fertilizers on the initial growth performance of Anthocephalus chinensis (Lam) Rich.Ex Wap. Seedling in nursery. J. Appl.. Sci. 4, 477-485.
  • [2] Davis A.S (2005). Quantifying root system quality of nursery out-planting performance. New Forests 30: 295-311.
  • [3] Akisanya, A., C. W. L. Bevan, J. Hirst, T. G. Halsall & D. A. H. Taylor: West African timber part III: Petroleum ether extract from the genus Entandrophragma. J. Chem. Soc. 1960, XX, 3827–3828.
  • [4] Banerji, B. & S. K. Nigam: Wood constituent of Meliaceae: A review: Fitoterapia 1984, 55, 3–36.
  • [5] Costall, B., R. J. Naylor & V. Nohria: Climbing behaviour induced by apomorphine in mice. A potent model for the detection of neuroleptic activity. Eur. J. Pharmacol. 1978, 50, 39–50.
  • [6] Crawley, J. N.: Exploratory behaviour models of anxiety in mice. Neurosci. Behav. Rev. 1985, 9, 37–44.
  • [7] Doir, M., H. Steinberg, M. Tomkiewicz, D. Joyce, R.D. Porsolt & A. Summerfield: Persistence of dose related behaviour in mice. Nature 1971, 23, 121–123.
  • [8] File, S. E.: Effects of chlorpromazone on exploration and habitation in the rat. Brit. J. Pharmacol. 1973, 49, 303–310.
  • [9] File, S. E. & A. G. Wardill: Validity of head-dipping as a measure of explorating a modified hole-board. Psychopharmacol. 1975, 44, 53–59.
  • [10] File, S. E. & S. Pellow: The effects of triazolobenzodiazepines in two animal tests of anxiety and in the holeboard. Brit. J. Pharmacol. 1985, 86, 729–735.
  • [11] Mansur, J., R. M. W. Martz & E. A. Carlini: Effects of acute and chronic administration of Cannabis sativa and (-) 9-trans-tetrahydro cannabinol on the behaviour of rats in an open-field arena. Psychopharmacol. 1971, 19, 338–397.
  • [12] Moore, N. A. & M. S. Axton: Production of climbing behaviour in mice requires both D1 and D2 receptor activation. Psychopharmacol. 1988, 94, 263–266.
  • [13] Njar, V. C. O, J. K. Adesanwo & Y. Raji: Methyl angolensate: the antiulcer agent of the stem extract of Entandrophragma angolense. Planta medica 1995, 61, 91–92.
  • [14] Orisadipe, A. T., S. Amos, A. A. Adesomoju, L. Binda, M. Emeje, J. I. Okogun, C. Wambebe & K. Gamaniel: Spasmolytic activity of methyl angolensate: a triterpenoid isolated from Entandrophragma angolense. Biol. Pharm. Bull. 2001, 24, 364–367.
  • [15] Perez, G. R. M., I. J. A. Perez, D. Garcia & M. H. Sossa: Neuropharmacological activity of Solanum nigrum fruit. J. Ethnopharmacol. 1998, 62, 43–48.
  • [16] Protais, P., J. Costertin & J. C. Schwartz: Climbing behaviour induced by apomorphine in mice. A simple test for the study of dopamine receptors in the striatum. Psychopharmacol. 1976, 50, 1–6.

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