Cluster Analysis for Evaluation of Genetic Diversity inEnset (Enset ventricosum(Welw.) Cheesman) Clones at Areka Condition
Journal of Plant Sciences
Volume 2, Issue 1, February 2014, Pages: 55-69
Received: Jan. 14, 2014;
Published: Feb. 28, 2014
Views 3268 Downloads 204
MikiasYeshitila Haile, Department of Plant and Horticultural Sciences, College of Agriculture, Hawassa University, Awassa, Ethiopia
279accessions of Enset ventricosum were tested at ArekaAgriculturalResearchCenterin a non-replicated field. The objectives of the study were to assess the diversity of these accessions based on key morphological descriptors and evaluate the accessions based on yield and yield related traits. Data on six qualitative and 22 quantitative traits were collected and subjected to various statistical analyses. Cluster analysis based on qualitative characters indicated the formation of six clusters and existence of variability, based on their leaf, midrib and petiole traits. The result of Shannon-Weaver diversity index (H`) showed thatlowlevels of diversity existed among the 279 Enset ventricosumaccessions based on the frequency of the phenotypic charactersconsidered. Analysis of variance for quantitative characters indicated significant variation among the accessions in all the 22 yield and yield components of an enset plant. Cluster analysis based on quantitative characters indicated the formation of six clusters and showing cluster five with the highest values for yield and yield components for the majority of the characters followed by cluster IV. The cluster and distance analysis of quantitative characters pointed out the distance between most of the clusters were highly significant (P < 0.01) suggesting diversity among accessions in different clusters. The maximum inter-clusters distance (D2 = 256.45) was noticed between cluster III and V followed by I and V (D2 = 228.59) and II and V (D2 = 206.10) suggesting diversity between these groups. Correlation study between various quantitative characters showed highly significant association among characters. Maturity time has a negative correlation with yield and yield components of an enset plant.
Cluster Analysis for Evaluation of Genetic Diversity inEnset (Enset ventricosum(Welw.) Cheesman) Clones at Areka Condition, Journal of Plant Sciences.
Vol. 2, No. 1,
2014, pp. 55-69.
Kaufman L, RouseewwPJ. 1990. Finding groups in data: an introduction to cluster analysis. A Willey-Inter-Science Publication, New York.
Bekele F. 1996. A sampling of the phenotypic diversity of cocoa in the Cocoa Gene Bank of Trinidad. Journal of Crop Science 36:57-64.
Endale T. 1997. Morphological characterization of enset (Enset ventricosum (Welw.) Cheesman) clones and the association of yield with different traits. MSc Thesis, Alemaya University of Agriculture, Alemaya, Ethiopia, p 89.
Mahalanobis PC. 1936. On the generalized distance in statistics. Proc. Natl. Sci. India B. 2: 49-55.
Crossa J. 1990. Statistical analysis of multi-location trials. Advances in Agronomy 44: 55-85.
Olmstead J. 1974. The versatile enset plant: its use in Gamo highlands. Journal of Ethiopian Studies 9(2):147-153.
Hawkes JG. 1983. Intraspecific classification the problems. In: Styles BT (ed). Intra-specific classification of wild and cultivated plants. Clarendon Press, Oxford1-7.
Atnafua B, ErmiasT, Endale T, Mikias Y, Mulugeta D, Yohannes T. 2008. Enset variety development. In: Gebremedhin WG (ed). Root and tuber crops the untapped resources. EIAR, Ethiopia 157-193.
Bayush T. 1991. Community management of crop genetic resource in the enset complex farming system of Southern Ethiopia. A case study from Sidamo Region. MSc. Thesis. Agricultural University of Norway, Norway.
Endale T, Terefe B, Mulugeta D, Geleta L. 1994. Improvement study of enset and sweet potato. In: Edward H and Lemma D (ed).Proceedings of the Second National Horticultural Workshop of Ethiopia.1-3 Dec. 1992, IAR, Ethiopia63-74.
Tewodros M. 2008. Morphological characterization and preliminary evaluation of Aerial yam (Dioscoreabulbifera) accessionscollected from south and southwestern Ethiopia. M.Sc. Thesis, Hawassa University, Awassa, Ethiopia.
Endale T, Mulugeta D, Bezuayehu H. 1996. Review of past andpresent enset improvement activities. In: Tsedeke A, Clifton H, Steven B, Seifu GM (ed). Proceedings of the First International workshop on Enset. 13-20 Dec. 1993, Addis Ababa, Ethiopia228-234.
Ethiopian Mapping Authority. 1988. National Atlas of Ethiopia (1st. ed). BerhanenaSelam Printing Press, Addis Ababa, Ethiopia.
Asrat A, Hailu A, Shewangizaw T. 1991. Meteorological Data for IAR Centers, Sub-centers and Trail sites. Miscellaneous Pub. No. 1, IAR, Addis Ababa, Ethiopia
Hailu A, Shewangizaw T, Kumlachew A. 1993. Agro-meteorological data summery. 1992 and term monthly mean. IAR, Nazreth, Ethiopia.
Murphey HF. 1959. Soils of Ethiopia: A report on the fertility status of some soils of Ethiopia. Experiment Station Bull. No. 1. Imperial Ethiopia College of Agriculture and Mechanical Arts, Alemaya, Ethiopia