alexa Genotype and Environment Interaction and Marketable Tuber Yield Stability of Potato(Solanumtuberosum L)Genotypes Grown in Bale Highlands,Southeastern Ethiopia | Abstract
ISSN: 2329-8863

Advances in Crop Science and Technology
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Research Article

Genotype and Environment Interaction and Marketable Tuber Yield Stability of Potato(Solanumtuberosum L)Genotypes Grown in Bale Highlands,Southeastern Ethiopia

Fufa Miheretu*
Sinana Agricultural Research Center, Horticulture division, Ethiopia
Corresponding Author : Fufa Miheretu
Sinana Agricultural Research Center
Horticulture division, Ethiopia
Tel: +251 116 187 346
E-mail: [email protected]
Received October 17, 2013; Accepted December 04, 2013; Published January 06, 2014
Citation: Miheretu F (2014) Genotype and Environment Interaction and Marketable Tuber Yield Stability of Potato (Solanumtuberosum L) Genotypes Grown in Bale Highlands, Southeastern Ethiopia. Adv Crop Sci Tech 1: 121. doi: 10.4172/2329-8863.1000121
Copyright: © 2014 Miheretu F. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

Twelve potato (Solanumtuberosum L.) genotypes were evaluated using randomized complete block design (RCBD) with three replications to evaluate their genotype x environment interaction (GEI) and marketable tuber yield stability across nine environments during 2009-2011 at highlands of Bale, Southeastern Ethiopia. The combined analysis of variance (ANOVA) revealed that there was significant (p<0.05) variation in genotype x environment interaction in marketable tuber yield. Genotype, environment and genotype x environment interaction respectively explained 18.86%, 51.88% and 29.26% of the total sum of squares in marketable tuber yield (t/ha). Most of the total sum of squares in marketable tuber yield is contributed by environment. The AMMI analysis for marketable tuber yield (t/ha) indicated that IPCA1, IPCA2 and IPCA3 were highly significant (p<0.01) while IPCA4 showed non-significant interaction. The first and second principal component axis captured 40.37% and 30.8% of the GEI sum of squares in marketable tuber yield. Genotype 394640-539 gave high mean marketable tuber yield that is the most stable across environments. It was, thus, selected and recommended for wide production across locations.

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