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Identification of stable genotypes and genotype by environment interaction for grain yield in sorghum (Sorghum bicolor L. Moench)

Published online by Cambridge University Press:  05 November 2018

Massaoudou Hamidou*
Affiliation:
Departement des cultures pluviales, Institut National de la Recherche Agronomique du Niger (INRAN), BP: 429 Niamey, Niger
Oumarou Souleymane
Affiliation:
Departement des cultures pluviales, Institut National de la Recherche Agronomique du Niger (INRAN), BP: 429 Niamey, Niger
Malick N. Ba
Affiliation:
International Crop Research Institute for the Semi-Arid Tropics (ICRISAT), BP 12404 Niamey, Niger
Eric Yirenkyi Danquah
Affiliation:
West Africa Centre for Crop Improvement, College of Basic and Applied Sciences, University of Ghana Legon, Accra, PMB: 30, Ghana
Issoufou Kapran
Affiliation:
Departement des cultures pluviales, Institut National de la Recherche Agronomique du Niger (INRAN), BP: 429 Niamey, Niger
Vernon Gracen
Affiliation:
West Africa Centre for Crop Improvement, College of Basic and Applied Sciences, University of Ghana Legon, Accra, PMB: 30, Ghana
Kwadwo Ofori
Affiliation:
West Africa Centre for Crop Improvement, College of Basic and Applied Sciences, University of Ghana Legon, Accra, PMB: 30, Ghana
*
*Corresponding author. E-mail: hmassaoud@yahoo.fr

Abstract

Sorghum is a staple food crop in Niger and its production is constrained by sorghum midge and the use of low yielding, local sorghum varieties. To improve sorghum productivity, it is crucial to provide farmers with high yielding sorghum cultivars that are resistant to midge. We evaluated 282 genotypes in four environments of Niger Republic. Alpha (0.1) lattice with two replications was the experimental design. Genotype and genotype by environment (GGE) biplot analysis was used to study grain yield (GY) stability and G × E interactions. The results revealed that two distinct mega environments were present. Genotype L232 was the best genotype for GY in the first planting date at Konni and the first and second planting dates (PDs) at Maradi. Genotype L17 was the best for GY in the second PD at Konni. The second PD at Konni was the most discriminating environment while the first PD at Konni is suitable for selecting widely adapted genotypes for GY.

Type
Research Article
Copyright
Copyright © NIAB 2018 

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Identification of stable genotypes and genotype by environment interaction for grain yield in sorghum (Sorghum bicolor L. Moench)
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