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International Journal of Plant Breeding and Genetics

Year: 2021 | Volume: 15 | Issue: 1 | Page No.: 24-33
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Authors

Dotun Joseph Ogunniyan

Dotun Joseph Ogunniyan

Oloruntoba Olutayo Olakojo

Solomon Tayo Akinyosoye

Solomon Akinyemi Makinde

Keywords

Background and Objectives: Additive main effects and multiplicative interaction (AMMI) model has been used to assess crop performance and stability. In this study, AMMI biplot was used to assess the responses of 34 maize hybrids and to identify those with broad or limited response to varied nitrogen (N) conditions. Materials and Methods: Twelve yellow maize inbred lines were crossed to generate 66 single-cross hybrids which were evaluated with four checks in three soil N conditions: 0, 30 and 90 kg N ha–1 denoting no N, low N and optimal N, respectively. The experiment was laid out in 10×7 lattice design with three replicates each year. Data collected on grain yield were subjected analysis of variance (ANOVA) for each year and across years. AMMI model was used to analyze the grain yield across N conditions andto investigate Genotype×environment (G×E). Results: ANOVA showed significant variation in genotypes under the three N conditions each year and significant differences (p<0.0001) attributable to genotypes, environment and interaction principal component axis. The AMMI biplot for the maize in varied N conditions explained 91.6% of the total sum of squares. Hybrids TZEI128×BD74161 and TZEI124×BD74222 had high yield under the three N conditions. TZEI13×TZEI10, TZEI11×TZEI16 and TZEI124×BD74165 interacted with N stress condition, while TZEI13×TZEI146, TZEI13×TZEI128, TZEI146×TZEI124, TZEI10×BD74165 and TZEI16×BD74165 responded to optimal condition. Conclusion: High yielding TZEI128×BD74161 and TZEI124×BD74222 are stable. They can be recommended for cultivation under both deficient and optimal N conditions. The other hybrids are suitable for cultivation under N stress and optimal conditions based on their interactions.
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How to cite this article

Dotun Joseph Ogunniyan, Oloruntoba Olutayo Olakojo, Solomon Tayo Akinyosoye and Solomon Akinyemi Makinde, 2021. Analysis of Grain Yield of Early-Maturing Yellow-Endosperm Maize Hybrids under Nitrogen Stress and Optimal Conditions Using AMMI Biplot. International Journal of Plant Breeding and Genetics, 15: 24-33.

DOI: 10.3923/ijpbg.2021.24.33

URL: https://scialert.net/abstract/?doi=ijpbg.2021.24.33

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