J.-X. Liao, X.-Y. Zou, Y. Ge, and J. Chang, "Effects of light intensity on growth of four Mosla species," Botanical Studies, vol. 47, pp. 403-408, 2006.
 A. Vyse, M. R. Cleary, and I. R. Cameron, "Tree species selection revisited for plantations in the Interior Cedar Hemlock zone of Southern British Columbia," The Forestry Chronicle, vol. 89, pp. 382-391, 2013.
 S. S. Lawson and C. H. Michler, "Afforestation, restoration and regeneration—not all trees are created equal," Journal of Forestry Research, vol. 25, pp. 3-20, 2014.
 J. Hall and S. Bada, "The distribution and ecology of Obeche (Triplochiton scleroxylon)," Journal of Ecology, vol. 67, pp. 543-564, 1979.
 P. P. Bosu and E. Krampah, Triplochiton scleroxylon K. Schum: In Louppe D, Oteng Amoako AA, Brink M (Eds). Wageningen, Netherlands: Timbers / Lumber, 2005.
 K. Okunomo, "Utilization of forest products in Nigeria," African Journal of General Agriculture, vol. 6, pp. 145-157, 2010.
 D. O. Adelani, M. A. Aduradola, I. O. O. Aiyelaagbe, O. Akinyemi, and C. I. Agbaje, "Growth promoters of tropical forest tree seedlings: A Review," Biological and Environmental Sciences Journal for the Tropics, vol. 11, pp. 92-100, 2014a.
 D. O. Adelani, M. O. Adedire, M. A. Aduradola, and R. A. Suleiman, "Enhancing seed and seedling growth of forest trees," Biological and Environmental Sciences Journal for the Tropics, vol. 11, pp. 50-56, 2014b.
This study received no specific financial support.
The authors declare that they have no competing interests.
All authors contributed equally to the conception and design of the study.