Carbon assimilation and water-use efficiency in cowpea varieties inoculated with Bradyrhizobium, measured using 13C natural abundance
Moisture stress is one of the most important constraints for crop production in arid regions. Cowpea is a vital food legume that has been cultivated in tropical and sub-tropical regions where water is scarce. Rhizobia inoculation confers resistance to water stress legumes. Two-year field experiments...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2022-12-01
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| Series: | Journal of Plant Interactions |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/17429145.2022.2075943 |
| _version_ | 1798041980852240384 |
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| author | Tewodros Ayalew Tarekegn Yoseph Georg Cadisch |
| author_facet | Tewodros Ayalew Tarekegn Yoseph Georg Cadisch |
| author_sort | Tewodros Ayalew |
| collection | DOAJ |
| description | Moisture stress is one of the most important constraints for crop production in arid regions. Cowpea is a vital food legume that has been cultivated in tropical and sub-tropical regions where water is scarce. Rhizobia inoculation confers resistance to water stress legumes. Two-year field experiments were conducted to assess the carbon assimilation and water use efficiencies of inoculated cowpea varieties at three sites. The treatments consist of four varieties and three levels of Bradyrhizobium inoculation arranged in a factorial randomized complete block design with four replications. The nitrogen (% N) and carbon (% C) concentrations in plant shoots were obtained directly from the mass spectrometric analysis. The results revealed considerable variation for shoot % N and % C, shoot growth, and δ13C among the varieties. Similarly, Bradyrhizobium significantly affected plant growth, % C, C and N contents, C/N ratio, and carbon isotope discrimination of the shoot. For instance, C and N contents and the C/N ratio increased by 28, 24, and 31%, respectively, due to Bradyrhizobium inoculation. In general, these results indicated that physiological performances such as carbon assimilation and water use efficiency of the crop could be, significantly improved when effective Bradyrhizobium strains and the best performing varieties are selected. |
| first_indexed | 2024-04-11T22:30:07Z |
| format | Article |
| id | doaj.art-40e2747cba5c4977806cd9e4cfd7401d |
| institution | Directory Open Access Journal |
| issn | 1742-9145 1742-9153 |
| language | English |
| last_indexed | 2024-04-11T22:30:07Z |
| publishDate | 2022-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Plant Interactions |
| spelling | doaj.art-40e2747cba5c4977806cd9e4cfd7401d2022-12-22T03:59:31ZengTaylor & Francis GroupJournal of Plant Interactions1742-91451742-91532022-12-0117185386010.1080/17429145.2022.2075943Carbon assimilation and water-use efficiency in cowpea varieties inoculated with Bradyrhizobium, measured using 13C natural abundanceTewodros Ayalew0Tarekegn Yoseph1Georg Cadisch2College of Agriculture, Hawassa University, Hawassa, EthiopiaCollege of Agriculture, Hawassa University, Hawassa, EthiopiaInstitute of Agricultural Sciences in the Tropics (Hans-Rothenberg-Institute), University of Hohenheim, Stuttgart, GermanyMoisture stress is one of the most important constraints for crop production in arid regions. Cowpea is a vital food legume that has been cultivated in tropical and sub-tropical regions where water is scarce. Rhizobia inoculation confers resistance to water stress legumes. Two-year field experiments were conducted to assess the carbon assimilation and water use efficiencies of inoculated cowpea varieties at three sites. The treatments consist of four varieties and three levels of Bradyrhizobium inoculation arranged in a factorial randomized complete block design with four replications. The nitrogen (% N) and carbon (% C) concentrations in plant shoots were obtained directly from the mass spectrometric analysis. The results revealed considerable variation for shoot % N and % C, shoot growth, and δ13C among the varieties. Similarly, Bradyrhizobium significantly affected plant growth, % C, C and N contents, C/N ratio, and carbon isotope discrimination of the shoot. For instance, C and N contents and the C/N ratio increased by 28, 24, and 31%, respectively, due to Bradyrhizobium inoculation. In general, these results indicated that physiological performances such as carbon assimilation and water use efficiency of the crop could be, significantly improved when effective Bradyrhizobium strains and the best performing varieties are selected.https://www.tandfonline.com/doi/10.1080/17429145.2022.2075943Carbon concentrationcowpeainoculationnitrogen concentrationand δ13C (‰) |
| spellingShingle | Tewodros Ayalew Tarekegn Yoseph Georg Cadisch Carbon assimilation and water-use efficiency in cowpea varieties inoculated with Bradyrhizobium, measured using 13C natural abundance Journal of Plant Interactions Carbon concentration cowpea inoculation nitrogen concentration and δ13C (‰) |
| title | Carbon assimilation and water-use efficiency in cowpea varieties inoculated with Bradyrhizobium, measured using 13C natural abundance |
| title_full | Carbon assimilation and water-use efficiency in cowpea varieties inoculated with Bradyrhizobium, measured using 13C natural abundance |
| title_fullStr | Carbon assimilation and water-use efficiency in cowpea varieties inoculated with Bradyrhizobium, measured using 13C natural abundance |
| title_full_unstemmed | Carbon assimilation and water-use efficiency in cowpea varieties inoculated with Bradyrhizobium, measured using 13C natural abundance |
| title_short | Carbon assimilation and water-use efficiency in cowpea varieties inoculated with Bradyrhizobium, measured using 13C natural abundance |
| title_sort | carbon assimilation and water use efficiency in cowpea varieties inoculated with bradyrhizobium measured using 13c natural abundance |
| topic | Carbon concentration cowpea inoculation nitrogen concentration and δ13C (‰) |
| url | https://www.tandfonline.com/doi/10.1080/17429145.2022.2075943 |
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