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Volume: 4, Issue: 1, Jan-Feb, 2016
DOI: 10.7324/JABB.2016.40101

Research Article

Genotype x environment interaction and kernel yield-stability of groundnut (Arachis hypogaea L.) in Northern Cameroon

Souina Dolinassou, Jean Baptiste Noubissie Tchiagam, Alain Djiranta Kemoral and Nicolas Njintang Yanou

  Author Affiliations


Kernel yield of thirteen groundnut varieties was studied for Genotype by Environment Interaction (GEI) in randomized complete block design with three replications across Pitoa, Gobo and Wakwa (three locations of northern Cameroon) using stability parameters, and Additive Main effects and Multiplicative Interaction analysis (AMMI). The objectives were to estimate the nature and magnitude of GEI, and identify stable high-yielding groundnut cultivars for general adaptation and unstable varieties for specific adaptation. Combined analysis of variance showed significant differences between genotypes, locations and GEI, suggesting differential response of varieties across tested locations, and the need for stability analysis. Differences between genotypes, environments and GEI accounted respectively for 68.91%, 16.00% and 15.08% of the total variation. Highest kernel yields of 2105, 1900, 1882, 1845 and 1841 kg ha-1 were recorded from genotypes Dourou, Blanc, Gobo-55-437, Ad-Manipenta and JL 28 respectively. Genotypes NW-Red Esimbi and Ouest-A2 gave the lowest kernel yield of 454 and 1284 kg ha-1 respectively. Two IPCA of AMMI were significant and captured the largest portion of variation of the total GEI. Stability analysis identified Dourou as the best lines due to its stability and high yield, while Gobo-55-437 and Blanc were specifically adapted to Pitoa and Gobo locations.


Arachis hypogaea, yield, genotype x environment interaction, stability analysis, northern Cameroon.

Citation: Dolinassou S, Noubissi\é TJB, Djiranta AK and Njintang YN. Genotype × environment interaction and kernel yield-stability of groundnut (Arachis hypogaea L.) in Northern Cameroon. J App Biol Biotech. 2016; 4 (01): 001-007. DOI: 10.7324/JABB.2016.40101

Copyright: Author(s). This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited.


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