Quantitative Genetic Variation in Gum Arabic (Acacia senegal (L) Willd) Provenances
- 1 Rubber Research Institute of Nigeria, Gum Arabic Sub-Station, Gashua, Nigeria
- 2 Rubber Research Institute of Nigeria, Gum Arabic Sub-Station, Gashua, Nigeria
- 3 Department of Science Laboratory, Technology Federal Polytechnic, Damaturu, Nigeria
- 4 National Biotechnology Development Agency, Abuja, Nigeria
Abstract
Twelve (12) Acacia senegal provenances were evaluated at the Rubber Research Institute of Nigeria, Gum Arabic Sub-Station Gashua, Yobe state. Gum yield and some morphological data were collect in three years to estimate mean effects, genetic variability, heritability and genetic advance in Acacia senegal provenances. The analysis of variance revealed highly significant difference for all traits. Genetic component analysis showed that both genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PVC) were high for all the traits except bark thickness. PCV was higher in proportion than GCV with respect to all the traits. Gum yield gave the highest relative difference (RD) over other traits. Heritability estimates were high for bark thickness (77.36) and stem diameter (61.75). Expected genetic advance was high in number of tree incision (1.29), stem diameter (1.54) and yield in kg/ha (22.31). This study indicated that there was sufficient genetic variability in Acacia senegal provenances that could be used as a base for improvement of yield and other component attributes of this species through direct selection and hybridization.
- Dorthe, J. (2000) Acacia senegal (L) Willd Seed Leaflet. Danida Forest Seed Center, Denmark, No. 5, 1-2.
- Duke, J.A. (1981) Handbook of LEGUMES of World Economic Importance. Plenum Press, New York. http://dx.doi.org/10.1007/978-1-4684-8151-8
- Jamal, A. and Huntsinger, L.C. (1993) Deterioration of Sustainable Agro-Silvi-Pastoral System in the Sudan: The Gum Gardens of Kordofan. Agroforestry Systems, 23, 23-38. http://dx.doi.org/10.1007/BF00704849
- Awouda, H.M. (1989) Outlook for Gum Arabic: Production and Supply. Report to the Gum Arabic Company, Khartoum, 18 p.
- Anderson, D.M. (1993) Some Factors Influencing the Demand of Gum Arabic (Acacia senegal (L.) Willdnd Other Water-Soluble Tree Exudates. Forest Ecology and Management, 58, 1-18. http://dx.doi.org/10.1016/0378-1127(93)90127-9
- Leung, A.Y. (1980) Encyclopedia of Common Natural Ingredient Used in Food, Drug and Cosmetic. John Wiley and Sons, New York.
- Burley, J. and Wood, P.J. (1978) A Manual on Species and Provenance Research with Particular Reference to the Tropics. Tropical Forestry Papers No. 10, 34-61.
- FDA (2002) Baseline Survey of Gum Arabic Production in Nigeria. Federal Department of Agriculture in Collaboration with Forestry Research Institute of Nigeria and Rubber Research Institute of Nigeria, p. 126.
- Ojiekpon, I.F. (2005) Proper Exploitation of Gum Arabic for Quality Control. In: Adegbehin, J.O., Ed., Training Manual on Gum Arabic Production, Proceedings of a Workshop, Gum Arabic Sub-Station, Tajuwa Village, Gashua, 18-20 October 2005, 21-30.
- Snedecor, G.W. and Cochran, W.G. (1987) Statistical Method. 5th Edition, Iowa State University Press, 456.
- Duncan, D.B. (1955) Multiple Range and Multiple F-Tests. Biometrics, 11, 1-42. http://dx.doi.org/10.2307/3001478
- SAS Institute (2000) SAS/STAT Guide for Personal Computer: Version 9.0. SAS Institute Inc., Cary.
- Johnson, H.W., Robinson, H.F. and Comstock, R.E. (1955) Estimates of Genetic and Environmental Variability in Soya Bean. Agronomy Journal, 47, 318-324. http://dx.doi.org/10.2134/agronj1955.00021962004700070009x
- Burton, G.N. and Devane, E.M. (1953) Estimating Heritability in Fall Fescue (Festuca arundiancea L.) from Replicated Clonal Materials. Agronomy Journal, 45, 478-481. http://dx.doi.org/10.2134/agronj1953.00021962004500100005x