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AMMI Model for Yield Stability Analysis of Linseed Genotypes for the Highlands of Bale, Ethiopia
Volume 5, Issue 6, November 2017, Pages: 93-98
Received: Oct. 11, 2017; Accepted: Oct. 25, 2017; Published: Dec. 7, 2017
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Tadele Tadesse, Oromia Agriculture Research Institute, Sinana Agriculture Research Center, Bale-Robe, Ethiopia
Amanuel Tekalign, Oromia Agriculture Research Institute, Sinana Agriculture Research Center, Bale-Robe, Ethiopia
Gashaw Sefera, Oromia Agriculture Research Institute, Sinana Agriculture Research Center, Bale-Robe, Ethiopia
Behailu Muligeta, Oromia Agriculture Research Institute, Sinana Agriculture Research Center, Bale-Robe, Ethiopia
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In order to determine stable linseed genotypes with high grain yield, field experiments were conducted with 14 genotypes for two years (2014-2015) at three locations in the highlands of Bale zone, Ethiopia. The genotypes were laid out in randomized complete design with four replications in each environment. The objective of this study was to identify and recommend high yielder, stable genotypes for testing sites and similar agro-ecologies using the stability parameters. The combined analysis of variance showed highly significant differences for the genotypes, environment, and genotype by environment interaction indicating the possible existence of stable genotypes among the tested once. The results of AMMI (additive main effect and multiplicative interaction) analysis indicated that the first two AMMI (AMMI1-AMMI2) were highly significant (P<0.01). The partitioning of the total sum of square exhibited that the effect of environment was a predominant source of variation followed by genotypes and GE interaction effect. Based on the stability parameters regression coefficient, deviation from regression and mean grain yield out of the tested G6, G9, G11, and G8 were found to be stable. However, the AMMI Stability Value (ASV) discriminated genotypes G12, G4, G6, G13, and G9 as stable genotypes respectively. Based on the Genotypes Selection Index (GSI) the most stable genotypes with high grain yield were G6 and G9. Therefore these two genotypes were identified as candidate genotypes to be verified for possible release.
AMMI, ASV, Stability, GSI
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Tadele Tadesse, Amanuel Tekalign, Gashaw Sefera, Behailu Muligeta, AMMI Model for Yield Stability Analysis of Linseed Genotypes for the Highlands of Bale, Ethiopia, Plant. Vol. 5, No. 6, 2017, pp. 93-98. doi: 10.11648/j.plant.20170506.12
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This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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