Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growth

After peanuts and cowpeas (Vigna unguiculata), the Bambara groundnut (Vigna subterranea (L.) Verdc) is the third most significant food legume in Africa. It is characteristically grown in marginal soils, is drought tolerant, and also has the potential for nitrogen fixation. Despite that, year-on-year...

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Main Authors: Felicitas M. Fwanyanga, Lydia N. Horn, Timothy Sibanda, Barbara Reinhold-Hurek
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-09-01
Series:Frontiers in Agronomy
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fagro.2022.1004771/full
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author Felicitas M. Fwanyanga
Lydia N. Horn
Timothy Sibanda
Barbara Reinhold-Hurek
author_facet Felicitas M. Fwanyanga
Lydia N. Horn
Timothy Sibanda
Barbara Reinhold-Hurek
author_sort Felicitas M. Fwanyanga
collection DOAJ
description After peanuts and cowpeas (Vigna unguiculata), the Bambara groundnut (Vigna subterranea (L.) Verdc) is the third most significant food legume in Africa. It is characteristically grown in marginal soils, is drought tolerant, and also has the potential for nitrogen fixation. Despite that, year-on-year Bambara groundnut yields are on a gradual decline due to a combination of abiotic and biotic stresses such as uneven annual rainfall and climate-induced changes in soil microbial community compositions, negatively impacting food security. Thus, the application of rhizobial inoculants at planting significantly improves yields in many leguminous crops. Moreover, symbiotic inoculants are well established in developed countries for improving nitrogen fixation and productivity in grain legumes. Sub-Saharan African countries, however, still under-utilise the above practice. In crop production, nitrogen (N) is the most frequently deficient nutrient since it stimulates root and shoots growth. Whereas nitrogen fertilisers can be used to supplement soil N levels, they are, however, also costly, at times inadequate, may not be timely in supply and may have deleterious environmental consequences. Hence, rhizobial inoculants are seen as a cheaper, easier, and safer method for improving N-fixation and crop productivity in grain legumes, as a result, smallholder farming systems are food secure. Thus, identifying the most efficient rhizobial strains for biofertiliser production for Bambara groundnut is of utmost importance to the farming communities.
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spelling doaj.art-2d3be94a492f4e91aedde5ad3816bf4b2022-12-22T02:00:56ZengFrontiers Media S.A.Frontiers in Agronomy2673-32182022-09-01410.3389/fagro.2022.10047711004771Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growthFelicitas M. Fwanyanga0Lydia N. Horn1Timothy Sibanda2Barbara Reinhold-Hurek3Department of Biochemistry, Microbiology, and Biotechnology, University of Namibia, Windhoek, NamibiaZero Emissions Research Initiative, Multi-disciplinary Research Services, University of Namibia, Windhoek, NamibiaDepartment of Biochemistry, Microbiology, and Biotechnology, University of Namibia, Windhoek, NamibiaCBIB Center for Biomolecular Interactions Bremen, Department of Microbe-Plant Interactions, Faculty of Biology and Chemistry, University of Bremen, Bremen, GermanyAfter peanuts and cowpeas (Vigna unguiculata), the Bambara groundnut (Vigna subterranea (L.) Verdc) is the third most significant food legume in Africa. It is characteristically grown in marginal soils, is drought tolerant, and also has the potential for nitrogen fixation. Despite that, year-on-year Bambara groundnut yields are on a gradual decline due to a combination of abiotic and biotic stresses such as uneven annual rainfall and climate-induced changes in soil microbial community compositions, negatively impacting food security. Thus, the application of rhizobial inoculants at planting significantly improves yields in many leguminous crops. Moreover, symbiotic inoculants are well established in developed countries for improving nitrogen fixation and productivity in grain legumes. Sub-Saharan African countries, however, still under-utilise the above practice. In crop production, nitrogen (N) is the most frequently deficient nutrient since it stimulates root and shoots growth. Whereas nitrogen fertilisers can be used to supplement soil N levels, they are, however, also costly, at times inadequate, may not be timely in supply and may have deleterious environmental consequences. Hence, rhizobial inoculants are seen as a cheaper, easier, and safer method for improving N-fixation and crop productivity in grain legumes, as a result, smallholder farming systems are food secure. Thus, identifying the most efficient rhizobial strains for biofertiliser production for Bambara groundnut is of utmost importance to the farming communities.https://www.frontiersin.org/articles/10.3389/fagro.2022.1004771/fullBambara groundnutsfood securitylegumes (Fabaceae)productivitybiofertiliserrhizobia
spellingShingle Felicitas M. Fwanyanga
Lydia N. Horn
Timothy Sibanda
Barbara Reinhold-Hurek
Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growth
Frontiers in Agronomy
Bambara groundnuts
food security
legumes (Fabaceae)
productivity
biofertiliser
rhizobia
title Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growth
title_full Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growth
title_fullStr Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growth
title_full_unstemmed Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growth
title_short Prospects of rhizobial inoculant technology on Bambara groundnut crop production and growth
title_sort prospects of rhizobial inoculant technology on bambara groundnut crop production and growth
topic Bambara groundnuts
food security
legumes (Fabaceae)
productivity
biofertiliser
rhizobia
url https://www.frontiersin.org/articles/10.3389/fagro.2022.1004771/full
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