Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes

Kidist Shewangizaw Tsegaye; Hussein Mohammed Ali; Amsalu Gobena Roro

doi:doi:10.11648/j.jps.20261405.11

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Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes

Kidist Shewangizaw Tsegaye^*, Hussein Mohammed Ali, Amsalu Gobena Roro

Published in Journal of Plant Sciences (Volume 14, Issue 5)

Received: 22 September 2026 Accepted: 8 October 2026 Published: 29 October 2026

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Abstract

Moisture deficit heavily constrains common bean (Phaseolus vulgaris L.) production in Ethiopia, serving as a critical limitation in areas characterized by erratic rainfall. To address this challenge, forty-three common bean genotypes were evaluated in a greenhouse experiment at Hawassa University in 2022 to identify drought-tolerant materials. The trial was arranged in a Randomized Complete Block Design (RCBD) with three replications under two distinct moisture regimes: a well-watered control and a post-flowering moisture-stressed regime. Significant genotypic variation was observed for most evaluated Mopho-agronomic traits, underscoring the genetic diversity available within the germplasm. Post-flowering moisture stress severely disrupted key plant processes, resulting in a 31.6% reduction in grain yield and a 33.2% decrease in pod number per plant. Discussion points reveal that terminal moisture stress compromises carbon assimilation, triggers premature leaf senescence, and severely impairs flower retention and pod setting. Furthermore, a significant genotype × regime interaction across several parameters indicated inconsistent performance, proving that bean genotypes employ distinct adaptive mechanisms to cope with water deficits. Under non-stress conditions, variety Tatu achieved the highest production at 12.7 g plant⁻¹. Based on comprehensive selection genotypes DAB 96, SER 125, and TATU emerged as the most resilient materials. These promising genotypes are highly recommended for direct production in moisture-stressed regions and can serve as valuable donor parents in future breeding programs targeting climate-resilient agriculture in moisture-limited environments.

Published in	Journal of Plant Sciences (Volume 14, Issue 5)
DOI	10.11648/j.jps.20261405.11
Page(s)	154-175
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2026. Published by Science Publishing Group

Keywords

Common Bean, Moisture Stress, Drought Tolerance, Genotype-By-Environment Interaction

References

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Tsegaye, K. S., Ali, H. M., Roro, A. G. (2026). Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes. Journal of Plant Sciences, 14(5), 154-175. https://doi.org/10.11648/j.jps.20261405.11

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Tsegaye, K. S.; Ali, H. M.; Roro, A. G. Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes. J. Plant Sci. 2026, 14(5), 154-175. doi: 10.11648/j.jps.20261405.11

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Tsegaye KS, Ali HM, Roro AG. Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes. J Plant Sci. 2026;14(5):154-175. doi: 10.11648/j.jps.20261405.11

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@article{10.11648/j.jps.20261405.11,
  author = {Kidist Shewangizaw Tsegaye and Hussein Mohammed Ali and Amsalu Gobena Roro},
  title = {Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes},
  journal = {Journal of Plant Sciences},
  volume = {14},
  number = {5},
  pages = {154-175},
  doi = {10.11648/j.jps.20261405.11},
  url = {https://doi.org/10.11648/j.jps.20261405.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.20261405.11},
  abstract = {Moisture deficit heavily constrains common bean (Phaseolus vulgaris L.) production in Ethiopia, serving as a critical limitation in areas characterized by erratic rainfall. To address this challenge, forty-three common bean genotypes were evaluated in a greenhouse experiment at Hawassa University in 2022 to identify drought-tolerant materials. The trial was arranged in a Randomized Complete Block Design (RCBD) with three replications under two distinct moisture regimes: a well-watered control and a post-flowering moisture-stressed regime. Significant genotypic variation was observed for most evaluated Mopho-agronomic traits, underscoring the genetic diversity available within the germplasm. Post-flowering moisture stress severely disrupted key plant processes, resulting in a 31.6% reduction in grain yield and a 33.2% decrease in pod number per plant. Discussion points reveal that terminal moisture stress compromises carbon assimilation, triggers premature leaf senescence, and severely impairs flower retention and pod setting. Furthermore, a significant genotype × regime interaction across several parameters indicated inconsistent performance, proving that bean genotypes employ distinct adaptive mechanisms to cope with water deficits. Under non-stress conditions, variety Tatu achieved the highest production at 12.7 g plant⁻¹. Based on comprehensive selection genotypes DAB 96, SER 125, and TATU emerged as the most resilient materials. These promising genotypes are highly recommended for direct production in moisture-stressed regions and can serve as valuable donor parents in future breeding programs targeting climate-resilient agriculture in moisture-limited environments.},
 year = {2026}
}

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TY  - JOUR
T1  - Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes
AU  - Kidist Shewangizaw Tsegaye
AU  - Hussein Mohammed Ali
AU  - Amsalu Gobena Roro
Y1  - 2026/10/29
PY  - 2026
N1  - https://doi.org/10.11648/j.jps.20261405.11
DO  - 10.11648/j.jps.20261405.11
T2  - Journal of Plant Sciences
JF  - Journal of Plant Sciences
JO  - Journal of Plant Sciences
SP  - 154
EP  - 175
PB  - Science Publishing Group
SN  - 2331-0731
UR  - https://doi.org/10.11648/j.jps.20261405.11
AB  - Moisture deficit heavily constrains common bean (Phaseolus vulgaris L.) production in Ethiopia, serving as a critical limitation in areas characterized by erratic rainfall. To address this challenge, forty-three common bean genotypes were evaluated in a greenhouse experiment at Hawassa University in 2022 to identify drought-tolerant materials. The trial was arranged in a Randomized Complete Block Design (RCBD) with three replications under two distinct moisture regimes: a well-watered control and a post-flowering moisture-stressed regime. Significant genotypic variation was observed for most evaluated Mopho-agronomic traits, underscoring the genetic diversity available within the germplasm. Post-flowering moisture stress severely disrupted key plant processes, resulting in a 31.6% reduction in grain yield and a 33.2% decrease in pod number per plant. Discussion points reveal that terminal moisture stress compromises carbon assimilation, triggers premature leaf senescence, and severely impairs flower retention and pod setting. Furthermore, a significant genotype × regime interaction across several parameters indicated inconsistent performance, proving that bean genotypes employ distinct adaptive mechanisms to cope with water deficits. Under non-stress conditions, variety Tatu achieved the highest production at 12.7 g plant⁻¹. Based on comprehensive selection genotypes DAB 96, SER 125, and TATU emerged as the most resilient materials. These promising genotypes are highly recommended for direct production in moisture-stressed regions and can serve as valuable donor parents in future breeding programs targeting climate-resilient agriculture in moisture-limited environments.
VL  - 14
IS  - 5
ER  -

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Kidist Shewangizaw Tsegaye

Ethiopian Institute of Agricultural Research, Addis Ababa, Ethiopia

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Hussein Mohammed Ali

Department of Plant Breeding, Hawassa University, Hawassa, Ethiopia
Amsalu Gobena Roro

Department of Plant Breeding, Hawassa University, Hawassa, Ethiopia

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Tsegaye, K. S., Ali, H. M., Roro, A. G. (2026). Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes. Journal of Plant Sciences, 14(5), 154-175. https://doi.org/10.11648/j.jps.20261405.11

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Tsegaye, K. S.; Ali, H. M.; Roro, A. G. Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes. J. Plant Sci. 2026, 14(5), 154-175. doi: 10.11648/j.jps.20261405.11

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AMA Style

Tsegaye KS, Ali HM, Roro AG. Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes. J Plant Sci. 2026;14(5):154-175. doi: 10.11648/j.jps.20261405.11

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@article{10.11648/j.jps.20261405.11,
  author = {Kidist Shewangizaw Tsegaye and Hussein Mohammed Ali and Amsalu Gobena Roro},
  title = {Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes},
  journal = {Journal of Plant Sciences},
  volume = {14},
  number = {5},
  pages = {154-175},
  doi = {10.11648/j.jps.20261405.11},
  url = {https://doi.org/10.11648/j.jps.20261405.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.20261405.11},
  abstract = {Moisture deficit heavily constrains common bean (Phaseolus vulgaris L.) production in Ethiopia, serving as a critical limitation in areas characterized by erratic rainfall. To address this challenge, forty-three common bean genotypes were evaluated in a greenhouse experiment at Hawassa University in 2022 to identify drought-tolerant materials. The trial was arranged in a Randomized Complete Block Design (RCBD) with three replications under two distinct moisture regimes: a well-watered control and a post-flowering moisture-stressed regime. Significant genotypic variation was observed for most evaluated Mopho-agronomic traits, underscoring the genetic diversity available within the germplasm. Post-flowering moisture stress severely disrupted key plant processes, resulting in a 31.6% reduction in grain yield and a 33.2% decrease in pod number per plant. Discussion points reveal that terminal moisture stress compromises carbon assimilation, triggers premature leaf senescence, and severely impairs flower retention and pod setting. Furthermore, a significant genotype × regime interaction across several parameters indicated inconsistent performance, proving that bean genotypes employ distinct adaptive mechanisms to cope with water deficits. Under non-stress conditions, variety Tatu achieved the highest production at 12.7 g plant⁻¹. Based on comprehensive selection genotypes DAB 96, SER 125, and TATU emerged as the most resilient materials. These promising genotypes are highly recommended for direct production in moisture-stressed regions and can serve as valuable donor parents in future breeding programs targeting climate-resilient agriculture in moisture-limited environments.},
 year = {2026}
}

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TY  - JOUR
T1  - Morpho-agronomic Responses and Yield Stability of Common Bean (Phaseolus Vulgaris L.) Genotypes Under Contrasting Moisture Regimes
AU  - Kidist Shewangizaw Tsegaye
AU  - Hussein Mohammed Ali
AU  - Amsalu Gobena Roro
Y1  - 2026/10/29
PY  - 2026
N1  - https://doi.org/10.11648/j.jps.20261405.11
DO  - 10.11648/j.jps.20261405.11
T2  - Journal of Plant Sciences
JF  - Journal of Plant Sciences
JO  - Journal of Plant Sciences
SP  - 154
EP  - 175
PB  - Science Publishing Group
SN  - 2331-0731
UR  - https://doi.org/10.11648/j.jps.20261405.11
AB  - Moisture deficit heavily constrains common bean (Phaseolus vulgaris L.) production in Ethiopia, serving as a critical limitation in areas characterized by erratic rainfall. To address this challenge, forty-three common bean genotypes were evaluated in a greenhouse experiment at Hawassa University in 2022 to identify drought-tolerant materials. The trial was arranged in a Randomized Complete Block Design (RCBD) with three replications under two distinct moisture regimes: a well-watered control and a post-flowering moisture-stressed regime. Significant genotypic variation was observed for most evaluated Mopho-agronomic traits, underscoring the genetic diversity available within the germplasm. Post-flowering moisture stress severely disrupted key plant processes, resulting in a 31.6% reduction in grain yield and a 33.2% decrease in pod number per plant. Discussion points reveal that terminal moisture stress compromises carbon assimilation, triggers premature leaf senescence, and severely impairs flower retention and pod setting. Furthermore, a significant genotype × regime interaction across several parameters indicated inconsistent performance, proving that bean genotypes employ distinct adaptive mechanisms to cope with water deficits. Under non-stress conditions, variety Tatu achieved the highest production at 12.7 g plant⁻¹. Based on comprehensive selection genotypes DAB 96, SER 125, and TATU emerged as the most resilient materials. These promising genotypes are highly recommended for direct production in moisture-stressed regions and can serve as valuable donor parents in future breeding programs targeting climate-resilient agriculture in moisture-limited environments.
VL  - 14
IS  - 5
ER  -

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