Published
2019-07-04
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Articles
How to Cite
Evaluation of Extra-early Maturing Maize Genotypes for Grain Yield and Stability in the Groundnut Basin Agro-ecological Zone of Senegal
Georgina Lala Ehemba
National Agricultural Research Center of Bambey, Senegalese Institute of Agricultural Research, BP 211 Bambey, Senegal; Regional Study Center for the Improvement of Drought Adaptation, BP 3320, Khombole Road, Thiès, Senegal.
https://orcid.org/0000-0002-2654-1417
Yedomon Ange Bovys Zoclanclounon
Regional Study Center for Drought Adaptation Improvement, BP 3320, Khombole Road, Thiès, Senegal.
https://orcid.org/0000-0003-2781-0778
Moustapha Gueye
National Agricultural Research Center of Bambey, Senegalese Institute of Agricultural Research, BP 211 Bambey, Senegal.
https://orcid.org/0000-0001-6014-7846
Cyril Diatta
National Agricultural Research Center of Bambey, Senegalese Institute of Agricultural Research, BP 211 Bambey, Senegal.
https://orcid.org/0000-0002-4194-0897
Martial Barnabe Etienne Diatta
National Agricultural Research Center of Bambey, Senegalese Institute of Agricultural Research, BP 211 Bambey, Senegal.
https://orcid.org/0000-0001-5270-9423
Cheikh Thiaw
National Agricultural Research Center of Bambey, Senegalese Institute of Agricultural Research, BP 211 Bambey, Senegal.
https://orcid.org/0000-0003-1423-6375
Alfred Kouly Tine
National Agricultural Research Center of Bambey, Senegalese Institute of Agricultural Research, BP 211 Bambey, Senegal.
https://orcid.org/0000-0002-5249-4677
Alpha Bocar Baldé
National Agricultural Research Center of Bambey, Senegalese Institute of Agricultural Research, BP 211 Bambey, Senegal.
https://orcid.org/0000-0002-3834-4584
Ghislain Kanfany
National Agricultural Research Center of Bambey, Senegalese Institute of Agricultural Research, BP 211 Bambey, Senegal; West African Center for Crop Improvement (WACCI), University of Ghana.
https://orcid.org/0000-0002-0860-0532
DOI: https://doi.org/10.20448/journal.512.2019.61.79.84
Keywords: AMMI, G x E, Rainfed, Early-maturation, Yield, Senegal, Zea mays.
Abstract
Maize is a highly valuable staple food crop in Sub-Saharan Africa regions. Its production is hampered by both biotic and abiotic stress. Early-maturing genetic resources appear as an excellent choice to manage adverse climatic change’s effects. This study aimed to find the best extra-early maize genotypes based on genotype by environment interactions in the groundnut agro-ecological zone of Senegal. The trials were conducted in Paoskoto, Ndiedieng, Nioro and Keur Sene during the rainy seasons of 2016 and 2017. Six extra-early maize genotypes were evaluated following a randomized complete block design with three replications. Data on grain yield were recorded and analysed using additive main effect and multiplicative interaction and genotype plus genotype by environment biplot methods. Analysis of variance revealed a significant (P < 0.01) genotype by environment effect on grain yield. The sum of squares variation was higher (77.2%) explained by the environment effect. The genotype 2008-TZEE-W-STR showed the highest yield performance (3299 kg ha-1) and lowest yield stability index (3). This genotype can be suggested to farmers for its cultivation and a good candidate for early maturing maize breeding program in Senegal.