Seedling stage drought screening of candidate cowpea (Vigna unguiculata (L) Walp.) genotypes
AbstractProlonged drought of cowpea at the seedling stage can affect survival and productivity. This study sought to evaluate cowpea genotypes for their resistance to seedling-stage drought stress. Fifteen cowpea genotypes were used in this study. The experiment was a factorial experiment arranged i...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2023-12-01
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| Series: | Cogent Food & Agriculture |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/23311932.2023.2212463 |
| _version_ | 1797435589401772032 |
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| author | Theophilus Kwabla Tengey Raphael Adu Gyamfi Edward Kofi Sallah Memunatu Issahaku Dominic Ngagmayan Ndela Mariam Seidu Abbas Francis Senyabor Emmanuel Israel Affram Ophelia Asirifi Amoako Charles Naapoal |
| author_facet | Theophilus Kwabla Tengey Raphael Adu Gyamfi Edward Kofi Sallah Memunatu Issahaku Dominic Ngagmayan Ndela Mariam Seidu Abbas Francis Senyabor Emmanuel Israel Affram Ophelia Asirifi Amoako Charles Naapoal |
| author_sort | Theophilus Kwabla Tengey |
| collection | DOAJ |
| description | AbstractProlonged drought of cowpea at the seedling stage can affect survival and productivity. This study sought to evaluate cowpea genotypes for their resistance to seedling-stage drought stress. Fifteen cowpea genotypes were used in this study. The experiment was a factorial experiment arranged in a Completely Randomized Design with three replications. Drought stress was imposed for 4 weeks after the full expansion of the first trifoliate leaf. Soil Plant Analysis Development (SPAD) chlorophyll meter readings of unifoliate, first, and second trifoliate leaves of each genotype were measured on a weekly basis due to the predictive ability of chlorophyll content on drought tolerance. The data were subjected to ANOVA, and the means were separated at a 5% probability level. Genotypes were ranked according to their tolerance level based on their chlorophyll inflectance index (CII). The results revealed significant genotype by stress interaction effects. Seedling stage screening under water-stressed conditions in combination with measurements of leaf chlorophyll measurements proved to be an effective way for rapid screening of genotypes for drought tolerance. IT14K-1424-12, IT10K-837-1 and IT10K-303-1 had consistently high chlorophyll content under drought stress for unifoliate and trifoliate leaves. These genotypes also fell into one cluster. Based on CII with a threshold of 51% for the fourth week of drought stress of unifoliate and trifoliate leaves, three genotypes (IT14K-1424-12, IT10K-837-1 and IT10K-303-1) were found to have Type I drought-tolerant mechanism. These genotypes could be used in future breeding interventions or released as varieties. |
| first_indexed | 2024-03-09T10:50:19Z |
| format | Article |
| id | doaj.art-53ccaadd4ee742ba982fa5e13e02bbf1 |
| institution | Directory Open Access Journal |
| issn | 2331-1932 |
| language | English |
| last_indexed | 2024-03-09T10:50:19Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Cogent Food & Agriculture |
| spelling | doaj.art-53ccaadd4ee742ba982fa5e13e02bbf12023-12-01T08:31:54ZengTaylor & Francis GroupCogent Food & Agriculture2331-19322023-12-019110.1080/23311932.2023.2212463Seedling stage drought screening of candidate cowpea (Vigna unguiculata (L) Walp.) genotypesTheophilus Kwabla Tengey0Raphael Adu Gyamfi1Edward Kofi Sallah2Memunatu Issahaku3Dominic Ngagmayan Ndela4Mariam Seidu5Abbas Francis Senyabor6Emmanuel Israel Affram7Ophelia Asirifi Amoako8Charles Naapoal9Council for Scientific and Industrial Research-Savanna Agricultural Research Institute (CSIR-SARI), Nyankpala, GhanaDepartment of Crop Science, Faculty of Agriculture, Food and Consumer Sciences, University for Development Studies, Nyankpala, GhanaDepartment of Crop Science, Faculty of Agriculture, Food and Consumer Sciences, University for Development Studies, Nyankpala, GhanaCouncil for Scientific and Industrial Research-Savanna Agricultural Research Institute (CSIR-SARI), Nyankpala, GhanaCouncil for Scientific and Industrial Research-Savanna Agricultural Research Institute (CSIR-SARI), Nyankpala, GhanaDepartment of Crop Science, Faculty of Agriculture, Food and Consumer Sciences, University for Development Studies, Nyankpala, GhanaDepartment of Crop Science, Faculty of Agriculture, Food and Consumer Sciences, University for Development Studies, Nyankpala, GhanaCouncil for Scientific and Industrial Research-Savanna Agricultural Research Institute (CSIR-SARI), Nyankpala, GhanaCouncil for Scientific and Industrial Research-Savanna Agricultural Research Institute (CSIR-SARI), Nyankpala, GhanaCouncil for Scientific and Industrial Research-Savanna Agricultural Research Institute (CSIR-SARI), Nyankpala, GhanaAbstractProlonged drought of cowpea at the seedling stage can affect survival and productivity. This study sought to evaluate cowpea genotypes for their resistance to seedling-stage drought stress. Fifteen cowpea genotypes were used in this study. The experiment was a factorial experiment arranged in a Completely Randomized Design with three replications. Drought stress was imposed for 4 weeks after the full expansion of the first trifoliate leaf. Soil Plant Analysis Development (SPAD) chlorophyll meter readings of unifoliate, first, and second trifoliate leaves of each genotype were measured on a weekly basis due to the predictive ability of chlorophyll content on drought tolerance. The data were subjected to ANOVA, and the means were separated at a 5% probability level. Genotypes were ranked according to their tolerance level based on their chlorophyll inflectance index (CII). The results revealed significant genotype by stress interaction effects. Seedling stage screening under water-stressed conditions in combination with measurements of leaf chlorophyll measurements proved to be an effective way for rapid screening of genotypes for drought tolerance. IT14K-1424-12, IT10K-837-1 and IT10K-303-1 had consistently high chlorophyll content under drought stress for unifoliate and trifoliate leaves. These genotypes also fell into one cluster. Based on CII with a threshold of 51% for the fourth week of drought stress of unifoliate and trifoliate leaves, three genotypes (IT14K-1424-12, IT10K-837-1 and IT10K-303-1) were found to have Type I drought-tolerant mechanism. These genotypes could be used in future breeding interventions or released as varieties.https://www.tandfonline.com/doi/10.1080/23311932.2023.2212463Cowpeaunifoliate leavestrifoliate leaveswater stressedchlorophyllchlorophyll inflectance index |
| spellingShingle | Theophilus Kwabla Tengey Raphael Adu Gyamfi Edward Kofi Sallah Memunatu Issahaku Dominic Ngagmayan Ndela Mariam Seidu Abbas Francis Senyabor Emmanuel Israel Affram Ophelia Asirifi Amoako Charles Naapoal Seedling stage drought screening of candidate cowpea (Vigna unguiculata (L) Walp.) genotypes Cogent Food & Agriculture Cowpea unifoliate leaves trifoliate leaves water stressed chlorophyll chlorophyll inflectance index |
| title | Seedling stage drought screening of candidate cowpea (Vigna unguiculata (L) Walp.) genotypes |
| title_full | Seedling stage drought screening of candidate cowpea (Vigna unguiculata (L) Walp.) genotypes |
| title_fullStr | Seedling stage drought screening of candidate cowpea (Vigna unguiculata (L) Walp.) genotypes |
| title_full_unstemmed | Seedling stage drought screening of candidate cowpea (Vigna unguiculata (L) Walp.) genotypes |
| title_short | Seedling stage drought screening of candidate cowpea (Vigna unguiculata (L) Walp.) genotypes |
| title_sort | seedling stage drought screening of candidate cowpea vigna unguiculata l walp genotypes |
| topic | Cowpea unifoliate leaves trifoliate leaves water stressed chlorophyll chlorophyll inflectance index |
| url | https://www.tandfonline.com/doi/10.1080/23311932.2023.2212463 |
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