Performance of elite maize genotypes under selected sustainable intensification options in Kenya
Combining different cropping and tillage systems with different genotypes across several cropping seasons can reveal opportunities for sustainable intensification (SI). The objective of this study was to assess the performance of six maize genotypes under intercropping with conservation tillage (no-...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Elsevier
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/119255 |
| _version_ | 1855523582106402816 |
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| author | Rusinamhodzi, Leonard Makumbi, Dan Njeru, J.M. Kanampiu, F.K. |
| author_browse | Kanampiu, F.K. Makumbi, Dan Njeru, J.M. Rusinamhodzi, Leonard |
| author_facet | Rusinamhodzi, Leonard Makumbi, Dan Njeru, J.M. Kanampiu, F.K. |
| author_sort | Rusinamhodzi, Leonard |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Combining different cropping and tillage systems with different genotypes across several cropping seasons can reveal opportunities for sustainable intensification (SI). The objective of this study was to assess the performance of six maize genotypes under intercropping with conservation tillage (no-till) – two promising options for SI. The experiment was carried out over three years (or six cropping seasons) at Kiboko Research Station, Kenya with sole cropping and mouldboard ploughing as baseline production systems. Results showed that maize genotypes and cropping systems had a significant effect on yield, but the effect of tillage was not significant. Moreover, there was no significant interactive effects of the tested factors on maize yield. The maize genotype CKH10085 had the highest yield of 7.7 t ha−1 under sole cropping yet it also recorded the largest yield penalty due to intercropping of 1.1 t ha−1. On the other hand, genotype CKH10717 maintained the same average yield of 7.1 t ha−1 in both conventional and conservation tillage systems. The commercial genotype genotype CKH10080 and CKH08051 were more stable than the other experimental genotypes under the variable growing and management conditions. These two genotypes are of intermediate maturity and drought tolerance, two critical attributes to improved maize production. Intercropping reduced maize yields due to increased competition, for example the overall yield of sole cropping was 7.1 t ha-1 compared with 6.4 t ha-1 under intercropping; representing an overall yield penalty of 0.7 t ha-1. The differences in performance of maize genotypes revealed opportunities to deploy genotypes to reduce risk or maximize yield, depending on the biophysical circumstances and the production objective of the farmer. |
| format | Journal Article |
| id | CGSpace119255 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1192552025-11-11T10:14:51Z Performance of elite maize genotypes under selected sustainable intensification options in Kenya Rusinamhodzi, Leonard Makumbi, Dan Njeru, J.M. Kanampiu, F.K. conservation agriculture conventional tillage maize cowpeas intercropping sustainability genotypes kenya Combining different cropping and tillage systems with different genotypes across several cropping seasons can reveal opportunities for sustainable intensification (SI). The objective of this study was to assess the performance of six maize genotypes under intercropping with conservation tillage (no-till) – two promising options for SI. The experiment was carried out over three years (or six cropping seasons) at Kiboko Research Station, Kenya with sole cropping and mouldboard ploughing as baseline production systems. Results showed that maize genotypes and cropping systems had a significant effect on yield, but the effect of tillage was not significant. Moreover, there was no significant interactive effects of the tested factors on maize yield. The maize genotype CKH10085 had the highest yield of 7.7 t ha−1 under sole cropping yet it also recorded the largest yield penalty due to intercropping of 1.1 t ha−1. On the other hand, genotype CKH10717 maintained the same average yield of 7.1 t ha−1 in both conventional and conservation tillage systems. The commercial genotype genotype CKH10080 and CKH08051 were more stable than the other experimental genotypes under the variable growing and management conditions. These two genotypes are of intermediate maturity and drought tolerance, two critical attributes to improved maize production. Intercropping reduced maize yields due to increased competition, for example the overall yield of sole cropping was 7.1 t ha-1 compared with 6.4 t ha-1 under intercropping; representing an overall yield penalty of 0.7 t ha-1. The differences in performance of maize genotypes revealed opportunities to deploy genotypes to reduce risk or maximize yield, depending on the biophysical circumstances and the production objective of the farmer. 2020-04 2022-04-05T10:30:36Z 2022-04-05T10:30:36Z Journal Article https://hdl.handle.net/10568/119255 en Open Access application/pdf Elsevier Rusinamhodzi, L., Makumbi, D., Njeru, J.M. & Kanampiu, F. (2020). Performance of elite maize genotypes under selected sustainable intensification options in Kenya. Field Crops Research, 249: 107738, 1-9. |
| spellingShingle | conservation agriculture conventional tillage maize cowpeas intercropping sustainability genotypes kenya Rusinamhodzi, Leonard Makumbi, Dan Njeru, J.M. Kanampiu, F.K. Performance of elite maize genotypes under selected sustainable intensification options in Kenya |
| title | Performance of elite maize genotypes under selected sustainable intensification options in Kenya |
| title_full | Performance of elite maize genotypes under selected sustainable intensification options in Kenya |
| title_fullStr | Performance of elite maize genotypes under selected sustainable intensification options in Kenya |
| title_full_unstemmed | Performance of elite maize genotypes under selected sustainable intensification options in Kenya |
| title_short | Performance of elite maize genotypes under selected sustainable intensification options in Kenya |
| title_sort | performance of elite maize genotypes under selected sustainable intensification options in kenya |
| topic | conservation agriculture conventional tillage maize cowpeas intercropping sustainability genotypes kenya |
| url | https://hdl.handle.net/10568/119255 |
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