Potato is one of the
important crops grown in mid and high altitude areas of Ethiopia. Several potato
genotypes have been introduced in different parts of this region. However, the
stability and performance of these genotypes are not yet assessed. Therefore, the objective of this study was to determine the
effect of genotype, environment and their interaction for tuber yield and
identify stable potato genotypes. The study was conducted using eight potato
genotypes in rainfed production season of years 2010 and 2011 at five potato
growing locations in the region. Randomized complete block design with three
replications was used for the experiment. Among the testing locations, the
superior mean tuber yield (25.43 t/ha) was obtained at Adet while the inferior
(13.89 t/ha) was at Injibara. Similarly, among the genotypes, CIP-396004.337 gave the highest mean tuber yield (25.66 t/ha), while
CIP-395011.2 gave the lowest (17.78 t/ha). Combined ANOVA indicated that the
main effects due to environments, genotypes and genotype by environment interaction were
highly significant. The contribution of E, G and GEI to the total variation in
tuber yield was about 47.11%, 8.83% and 44.07%, respectively. The GEI was
further partitioned using GGE biplot model. The first two principal components
obtained by singular value decomposition of the centered data of tuber yield explained
71.26% of the total variability caused by (G + GE).
Out of these variations, PC1 and PC2 accounted 51.24% and 20.02% variability, respectively. GGE biplot
view of this study identified Serinka as ideal testing location and
CIP-396004.337 as ideal genotype for Amhara region in Ethiopia.
Cite this paper
Gedif, M. and Yigzaw, D. (2014) Genotype by Environment Interaction Analysis for Tuber Yield of Potato (Solanum tuberosum
L.) Using a GGE Biplot Method in Amhara Region, Ethiopia. Agricultural Sciences
, 239-249. doi: 10.4236/as.2014.54027
 Berga, L., Gebremedhin, W., Teriessa, J. and Bereke, T. (1992) Potato Agronomy Research. In: Herath and Lemma, Eds., Horticulture Research and Development in Ethiopia, Proceedings of the 2nd National Horticultural Workshop of Ethiopia, Institute of Agricultural Research, Addis Ababa, 2-5 February 1992, 182-196.
 CSA (2010) The Federal Democratic Republic of Ethiopia Central Statistical Agency Agricultural Sample Survey. Volume I: Report on Area and Production of Major Crops. Meher Season’s Statistical Bulletin, Addis Ababa, 221.
 Yilma, S. (1989) The Potential of True Potato Seed in Potato Production in Ethiopia. Acta Horticulturae, 270, 389-394.
 FAO (2012) Food and Agriculture Organization of the United Nations. http://faostat.fao.org/
 Tesfaye, A. and Yigzaw, D. (2008) Review of Crop Improvement Research Achievements and Future Focus in Parts of Western Amhara Region: The Case of Adet. Tesfaye, A., Ed., Proceedings of the 1st Amhara Region Regional Workshop on Potato Research and Development Achievements and Transfer Experiences and Future Directions, Bahir Dar, 22-24 December 2008, 85-101.
 Ding, M., Tier, B. and Yan, W. (2007) Application of GGE Biplot Analysis to Evaluate Genotype, Environment and GxE Interaction on P. radiata: A Case Study. http://proceedings.com.au/afgc/slides%20(PDF)/thurs%201600%20ding.pdf
 Tesfaye, A. (2010) Potato Production and Post Harvest Handling. Tis Abay Publishing Limited, Bahir Dar, 82.
 SAS (2002) System Analysis Software. V 9. SAS Institute INC., Cary.
 GenStat (2011) Genstat Procedure Library Release PL22.1. 14th Edition, VSN International Ltd., Hemel Hempstead.
 Yan, W., Hant, L.A., Qinglai, S. and Szalvincs, Z. (2000) Cultivar Evaluation and Megaenvironment Investigation Based on the GGE Biplot. Crop Science, 40, 597-605. http://dx.doi.org/10.2135/cropsci2000.403597x
 Yan, W. and Tinker, N.A. (2006) Biplot Analysis of Multi-Environment Trial Data: Principles and Applications. Canadian Journal of Plant Science, 86, 623-645. http://dx.doi.org/10.4141/P05-169
 Kaya, Y., Akcura, M. and Taner, S. (2006) GGE-Biplot Analysis of Multi-Environment Yield Trials in Breed Wheat. Turkish Journal of Agriculture and Forestry, 30, 325-337.
 Yan, W., Kang, M.S., Woods, S. and Cornelius, P.L. (2007) GGE Biplot vs AMMI Analysis of Genotype by Environment Data. Crop Science, 47, 643-655. http://dx.doi.org/10.2135/cropsci2006.06.0374