Asungre, P A and Akromah, R and Kena, A W and Gangashetty, P I (2021) Genotype by Environment Interaction on Grain Yield Stability and Iron and Zinc Content in OPV of Pearl Millet in Ghana Using the AMMI Method. International Journal of Agronomy (TSI), 2021 (1). pp. 1-10. ISSN 1687-8159
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Abstract
Twenty-two open-pollinated varieties (OPVs) of pearl millet (Pennisetum glaucum) genotypes were tested in two locations for three seasons in Ghana to estimate the magnitude of genetic variability, heritability, and stability for grain yield and related traits and grain micronutrients among the varieties. General analysis of variance within and across locations and years revealed very highly significant variability (p < 0.01) among the genotypes. The additive main effects and multiplicative interaction (AMMI) analyses revealed significant genotype × environment interaction (GEI) that influenced the relative ranking of genotypes across the environments. Genotypic variance (σ2g) contributed a greater proportion of the phenotypic variance (σ2p) for plant height (530.31) and grain Fe content (34.72). Broad-sense heritability (mathematical equation) varied widely from 24.82% for grain yield to 77.53% in days to flower. Phenotypic coefficient of variation (PCV) was higher than genotypic coefficient of variation (GCV) for all traits, indicating strong play of environment on trait expressions. 11 out of the 22 OPVs were stable for grain yield and micronutrients across environments for the three-year period and included GB 8735 and ICMV 221 Wbr and SOSAT-C88.
| Item Type: | Article |
|---|---|
| Divisions: | RP-Grain Legumes |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Iron and Zinc, genotypes, Pearl Millet, grain micronutrients, AMMI Method, Ghana |
| Subjects: | Mandate crops > Millets > Pearl Millet Others > Crop Yield |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 25 Sep 2024 11:06 |
| Last Modified: | 25 Sep 2024 11:06 |
| URI: | http://oar.icrisat.org/id/eprint/12829 |
| Official URL: | https://onlinelibrary.wiley.com/doi/full/10.1155/2... |
| Projects: | UNSPECIFIED |
| Funders: | UNSPECIFIED |
| Acknowledgement: | The authors would like to express their gratitude to the pearl millet improvement section of the CSIR-Savanna Agricultural Research Institute, Manga station, Ghana, for data collection. They are equally grateful to the pearl millet breeding team of ICRISAT-Niger for providing some of the test materials used in this study and the analysis of grain micronutrient content. |
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