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

Hamidou, M and Souleymane, O and Ba, M N and Danquah, E Y and Kapran, I and Gracen, V and Ofori, K (2018) Identification of stable genotypes and genotype by environment interaction for grain yield in sorghum (Sorghum bicolor L. Moench). Plant Genetic Resources: Characterization and Utilization (TSI). pp. 1-6. ISSN 1479-2621

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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.

Item Type: Article
Divisions: Research Program : West & Central Africa
CRP: CGIAR Research Program on Dryland Cereals
Uncontrolled Keywords: GGE biplot, Niger, planting dates, yield stability, Sorghum, Niger, sorghum genotypes
Subjects: Mandate crops > Sorghum
Others > Genetics and Genomics
Others > African Agriculture
Others > Niger
Depositing User: Mr Ramesh K
Date Deposited: 12 Nov 2018 08:41
Last Modified: 12 Nov 2018 08:41
URI: http://oar.icrisat.org/id/eprint/10928
Official URL: http://dx.doi.org/10.1017/S1479262118000382
Projects: UNSPECIFIED
Funders: Alliance for Green Revolution in Africa (AGRA)
Acknowledgement: The authors acknowledge Alliance for Green Revolution in Africa (AGRA) for funding this work. This work has also been undertaken as part of the CGIAR Research Program on Dryland Cereals.
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