Nematode-based soil food web condition in mung bean under semi-arid conditions
In semi-arid regions of Kenya, mung bean plays a significant role as a subsistence and cash crop. Plant-parasitic nematodes that reduce yields are among the biotic constraints affecting the crop. Nematode communities in mung bean monocrop and maize-mung bean intercrop fields in Mbeere South, Embu Co...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-12-01
|
| Series: | Journal of Agriculture and Food Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666154322001983 |
| _version_ | 1811292117716172800 |
|---|---|
| author | Julius L. Leiririo Hannah Karuri Justine M. Nyaga |
| author_facet | Julius L. Leiririo Hannah Karuri Justine M. Nyaga |
| author_sort | Julius L. Leiririo |
| collection | DOAJ |
| description | In semi-arid regions of Kenya, mung bean plays a significant role as a subsistence and cash crop. Plant-parasitic nematodes that reduce yields are among the biotic constraints affecting the crop. Nematode communities in mung bean monocrop and maize-mung bean intercrop fields in Mbeere South, Embu County, Kenya were assessed. In addition, soil food web indices and metabolic footprints, which can be targeted in enhancement of soil suppressiveness against plant-parasitic nematodes, were also evaluated. Nematode genera from soil samples collected from the monocrop and intercrop fields were identified. The two cropping systems cumulatively had 24 nematode genera belonging to ten functional guilds. Mung bean monocrop had a significantly high number of Scutellonema and Prismatolaimus while the intercrop fields had a greater population of Meloidogyne. There were no significant differences in indices between intercrop and monocrop fields. In both systems, the maturity index of nematodes in cp 2–5 was 2.52 and the channel, basal and enrichment indices were below 50%. Metabolic footprints were similar except the composite footprint which was significantly higher in the maize-mung bean intercrop. Scutellonema and Acrobeles were positively associated with pH while Aphelenchus was positively associated with Carbon. The results of this study can be used in integrated nematode management schemes that enhance the suppressive ability of soil in mung bean cropping systems in both Kenya and other similar regions in Eastern Africa. |
| first_indexed | 2024-04-13T04:40:27Z |
| format | Article |
| id | doaj.art-4bcaffd207ee4c8b9de5f4d17a477aff |
| institution | Directory Open Access Journal |
| issn | 2666-1543 |
| language | English |
| last_indexed | 2024-04-13T04:40:27Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Agriculture and Food Research |
| spelling | doaj.art-4bcaffd207ee4c8b9de5f4d17a477aff2022-12-22T03:02:00ZengElsevierJournal of Agriculture and Food Research2666-15432022-12-0110100465Nematode-based soil food web condition in mung bean under semi-arid conditionsJulius L. Leiririo0Hannah Karuri1Justine M. Nyaga2Department of Biological Sciences, P.O Box 6-60100, University of Embu, KenyaCorresponding author.; Department of Biological Sciences, P.O Box 6-60100, University of Embu, KenyaDepartment of Biological Sciences, P.O Box 6-60100, University of Embu, KenyaIn semi-arid regions of Kenya, mung bean plays a significant role as a subsistence and cash crop. Plant-parasitic nematodes that reduce yields are among the biotic constraints affecting the crop. Nematode communities in mung bean monocrop and maize-mung bean intercrop fields in Mbeere South, Embu County, Kenya were assessed. In addition, soil food web indices and metabolic footprints, which can be targeted in enhancement of soil suppressiveness against plant-parasitic nematodes, were also evaluated. Nematode genera from soil samples collected from the monocrop and intercrop fields were identified. The two cropping systems cumulatively had 24 nematode genera belonging to ten functional guilds. Mung bean monocrop had a significantly high number of Scutellonema and Prismatolaimus while the intercrop fields had a greater population of Meloidogyne. There were no significant differences in indices between intercrop and monocrop fields. In both systems, the maturity index of nematodes in cp 2–5 was 2.52 and the channel, basal and enrichment indices were below 50%. Metabolic footprints were similar except the composite footprint which was significantly higher in the maize-mung bean intercrop. Scutellonema and Acrobeles were positively associated with pH while Aphelenchus was positively associated with Carbon. The results of this study can be used in integrated nematode management schemes that enhance the suppressive ability of soil in mung bean cropping systems in both Kenya and other similar regions in Eastern Africa.http://www.sciencedirect.com/science/article/pii/S2666154322001983Metabolic footprintsIndicesSuppressive soilVigna radiata |
| spellingShingle | Julius L. Leiririo Hannah Karuri Justine M. Nyaga Nematode-based soil food web condition in mung bean under semi-arid conditions Journal of Agriculture and Food Research Metabolic footprints Indices Suppressive soil Vigna radiata |
| title | Nematode-based soil food web condition in mung bean under semi-arid conditions |
| title_full | Nematode-based soil food web condition in mung bean under semi-arid conditions |
| title_fullStr | Nematode-based soil food web condition in mung bean under semi-arid conditions |
| title_full_unstemmed | Nematode-based soil food web condition in mung bean under semi-arid conditions |
| title_short | Nematode-based soil food web condition in mung bean under semi-arid conditions |
| title_sort | nematode based soil food web condition in mung bean under semi arid conditions |
| topic | Metabolic footprints Indices Suppressive soil Vigna radiata |
| url | http://www.sciencedirect.com/science/article/pii/S2666154322001983 |
| work_keys_str_mv | AT juliuslleiririo nematodebasedsoilfoodwebconditioninmungbeanundersemiaridconditions AT hannahkaruri nematodebasedsoilfoodwebconditioninmungbeanundersemiaridconditions AT justinemnyaga nematodebasedsoilfoodwebconditioninmungbeanundersemiaridconditions |