dc.contributor | Blair, Matthew W. | en_US |
dc.contributor | Ambachew, Daniel | en_US |
dc.contributor | Mohammed, Hussien | en_US |
dc.contributor | Asfaw, Arafat | en_US |
dc.creator | Darkwa, Kwabena | en_US |
dc.date.accessioned | 2017-04-23T13:09:03Z | |
dc.date.available | 2017-04-23T13:09:03Z | |
dc.identifier | https://mel.cgiar.org/reporting/download/hash/hj1baHf6 | en_US |
dc.identifier.citation | Kwabena Darkwa, Matthew W. Blair, Daniel Ambachew, Hussien Mohammed, Arafat Asfaw. (Accepted on 22/7/2016). Evaluation of common bean (Phaseolus vulgaris L. ) genotypes for drought stress adaptation in Ethiopia. Crop Journal. | en_US |
dc.identifier.uri | https://hdl.handle.net/20.500.11766/6866 | |
dc.description.abstract | Drought stress linked with climate changeisoneofthemajorconstraintsfacedby
common bean farmers in Africa and elsewhere. Mitigating this constraint requires the
selection of resilient varieties that withstand drought threats to common bean production.
This study assessed the drought response of 64 small red-seeded genotypes of common
bean grown in a lattice design replicated twice under contrasting moisture regimes,
terminal drought stress and non-stress, in Ethiopia during the dry season fromNovember
2014 to March 2015. Multiple plant traits associated with drought were assessed for their
contribution to drought adaptation of the genotypes. Drought stress determined by a
drought intensity index was moderate (0.3). All the assessed traits showed significantly
different genotypic responses under drought stress and non-stress conditions. Eleven
genotypes significantly (P ≤ 0.05) outperformed the drought check cultivar under both
drought stress and non-stress conditions in seed yielding potential. Seed yield showed
positive and significant correlations with chlorophyll meter reading, vertical root pulling
resistance force, number of pods per plant, and seeds per pod under both soil moisture
regimes, indicating their potential use in selection of genotypes yielding well under
drought stress and non-stress conditions. Clustering analysis using Mahalanobis distance
grouped the genotypes into four groups showing high and significant inter-cluster
distance, suggesting that hybridization between drought-adapted parents from the groups
will provide the maximum genetic recombination for drought tolerance in subsequent
generations | en_US |
dc.format | PDF | en_US |
dc.language | en | en_US |
dc.publisher | KeAi | en_US |
dc.rights | CC-BY-4.0 | en_US |
dc.source | Crop Journal; | en_US |
dc.title | Evaluation of common bean (Phaseolus vulgaris L.) genotypes for drought stress adaptation in Ethiopia | en_US |
dc.type | Journal Article | en_US |
dcterms.available | 2016-07-22 | en_US |
cg.subject.agrovoc | adaptation | en_US |
cg.subject.agrovoc | drought | en_US |
cg.subject.agrovoc | evaluation | en_US |
cg.contributor.center | Southern Agricultural Research Institute - SARI, Ethiopia | en_US |
cg.contributor.center | Hawassa University - HU - Ethiopia | en_US |
cg.contributor.center | University of Tennessee | en_US |
cg.contributor.crp | CGIAR Research Program on Grain Legumes - GL | en_US |
cg.contributor.funder | CGIAR System Organization - CGIAR | en_US |
cg.contributor.project-lead-institute | Hawassa University - HU - Ethiopia | en_US |
cg.coverage.region | Western Africa | en_US |
cg.coverage.region | Central America | en_US |
cg.coverage.region | Eastern Africa | en_US |
cg.coverage.country | BF | en_US |
cg.coverage.country | SV | en_US |
cg.coverage.country | GH | en_US |
cg.coverage.country | HN | en_US |
cg.coverage.country | KE | en_US |
cg.coverage.country | MW | en_US |
cg.coverage.country | NE | en_US |
cg.coverage.country | NG | en_US |
cg.coverage.country | TZ | en_US |
cg.coverage.country | NI | en_US |
cg.contact | ddemissi@my.tnstate.edu | en_US |
cg.identifier.doi | https://dx.doi.org/10.1016/j.cj.2016.06.007 | en_US |
cg.isijournal | ISI Journal | en_US |
dc.identifier.status | Open access | en_US |
mel.impact-factor | 2.658 | en_US |
cg.issn | 2095-5421 | en_US |
cg.journal | Crop Journal | en_US |