Abstract
As part of a breeding programme, exploration and systematic selection exercise of kola (Cola spp.) was carried out in Nigeria from the large number of kola populations in the country based mainly on yield and various nut characteristics. The exercise gave rise to a collection of many accessions of the genus including five wild species that are currently being maintained in field genebanks of Cocoa Research Institute of Nigeria (CRIN), Gambari experimental station, Idi-Ayunre, Ibadan. In order to fully exploit the variability in these plants for genetic improvement, the plants were characterized and their morphological variability described. A list of descriptors, developed by International Plant Genetic Resources Institute (IPGRI) for Avocado, with modifications was employed recording 60 descriptors consisting of 33 qualitative and 27 quantitative characters. The characterization data revealed enormous morphological variability among the plants studied and have strong bearing on the taxonomy of the groups. The result also confirmed that the wild species of Cola form a special group with enormous agronomic traits that are yet to be exploited in kola breeding. Wild species identified with high nut and pod numbers, thick indehiscent pods and fruit size uniformity is recommended for use in interspecific hybridization programme.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
P.O. Adebola (2000) ArticleTitlePrincipal component analysis of variation pattern among Cola nitidaCola acuminata (Sterculianceae) and their interspecific hybrids Feddes Repertorium III (2000) 3 IssueID4 83–188
P.O. Adebola O.M. Aliyu K. Badaru (2002) ArticleTitleGenetic variability studies in the germplasm collection of kola (Cola nitida [Vent] Schott and Endlicher) in South Western Nigeria Plant Genet. Resour. Newslett. IPGRI 32 57–59
F. Bekele D.R. Butler (2000) Proposed list of Cocoa descriptors for characterization A.B. Eskes J.M.M. Engels R.A. Lass (Eds) Working Procedures for Cocoa Germplasm Evaluation and Selection International Plant Genetic Resources Institute Rome, Italy 41–48
Bekele F.L., Iwaro A.D. and Butler D.R. 2001. Potential Value of Cacao Germplasm at the International Cocoa Gene Bank Trinidad (ICG, T). Proceedings of the 13th International Cocoa Research Conference9–14 October, 2000, Kota Kinabalu, Malaysia.
M. Bodard (1962) ArticleTitleContributions a l’etude systematique sur le Cola en Afrique occidentale Annales le la faculte des sciences de l’Universite de DakarTome 7 71–82
A. Brandolini R. Castagna S. Empilli (2000) ArticleTitleMorpho–agronomic variability of the diploid wheat Triticum monococcum L Plant Genet. Resour. Newslett. 124 36–40
J.F. dasilva Junior J.E.F. Bezerra I.E. Lederman J.A. Tavares M.L. deMelo Neto (1999) ArticleTitleConservation, characterization and evaluation of soursop (Annona muricata) germplasm under the semi-arid conditions of the chapada do Araripepernambuco stateBrazil Plant Genet. Resour. Newslett. 120 25–29
InstitutionalAuthorNameIPGRI (1995) Descriptors for Avocado (Persea spp.) International Plant Genetic Resources Institute Rome, Italy
G.S. Khush D.S. Brar (1988) Wide hybridization in plant breeding A.H. Zakri (Eds) Plant Breeding and Genetic Engineering Society for the Advancement of Breeding Researches in Asia and Oceania Bangi, Malaysia 140–188
A. Kornerup J.H. Wanscher (1978) Methuen Handbook of Colour Methuen London Ltd. London, U.K
J.A. Morakinyo (1978) Biosystematics Studies in the Genus Cola Schott and Endlicher University of Ife Nigeria
Morakinyo J.A and Olorode O. 1984. Cytogenetic and Morphological studies on Cola acuminata (P. Beauv.) Schott & Endlicher; Cola nitida (Vent)Schott & Endlicher and the C. acuminata × C. nitida F1 Hybrid. CafeCacaoThe. Vol. xxviii No 4, 1984.
InstitutionalAuthorNameRoyal Horticultural Society (1986) R.H.S. Colour Chart EditionNumber1st and 2nd ed. Royal Horticultural Society London
Sounigo O., Bekele F., Christopher G. Bidaisee Y. and Umaharan R. 1997. Comparison between genetic diversity data obtained from morphological biochemical and molecular studies. In: Cocoa Research Unit, Annual Report, 1997. The University of the West Indies, St. Augustine, Trinidad, pp.20–29.
R.G. Steel J.H. Torrie (1988) Principles and Procedures of Statistics McGraw Hill New York, USA
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Adebola, P.O., Morakinyo, J.A. Evaluation of Morpho-agronomic Variability of Wild and Cultivated Kola (Cola Species Schott et Endl.) in South Western Nigeria. Genet Resour Crop Evol 53, 687–694 (2006). https://doi.org/10.1007/s10722-004-3558-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10722-004-3558-1