Estimating yield components, limiting factors, and yield gaps of Enset in Ethiopia using easily measurable above-ground plant traits
The quantification of yield for different enset products has mainly been based on farmers’ estimates, which are often inaccurate. Several allometric models have been developed to overcome this challenge. Building on past work, the current study developed allometric models for enset fiber, kocho, and...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
MDPI
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/116468 |
| _version_ | 1855519814583320576 |
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| author | Yemataw, Zerihun Said, Alemar Dejene, Tesfaye Ocimati, Walter Amwonya, David Blomme, Guy |
| author_browse | Amwonya, David Blomme, Guy Dejene, Tesfaye Ocimati, Walter Said, Alemar Yemataw, Zerihun |
| author_facet | Yemataw, Zerihun Said, Alemar Dejene, Tesfaye Ocimati, Walter Amwonya, David Blomme, Guy |
| author_sort | Yemataw, Zerihun |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The quantification of yield for different enset products has mainly been based on farmers’ estimates, which are often inaccurate. Several allometric models have been developed to overcome this challenge. Building on past work, the current study developed allometric models for enset fiber, kocho, and bula yield estimation. Enset yield limiting factors and associated yield gaps were also determined. In this study, above-ground growth and yield (kocho, bula, and fiber) traits of five-year-old plants of two widely grown enset landraces, ‘Unjame’ and ‘Siskela’, were assessed in farmers’ fields at three contrasting altitude sites. Except for bula, a minor yield component, correlation, and PCA analysis showed strong association between the above-ground and yield traits. Allometric equations based on the above-ground traits significantly (R2 = 25 to 68%) explained the variation in the yield traits. This study, for the first time, generated allometric models that can reliably estimate enset fiber yield. Leaf length, petiole length, and plant height are especially good for estimating fiber and kocho yields. The performance of models for bula were poor possibly due to the very low bula yields per plant. Soil chemical characteristics differently influenced enset yield attributes. For example, improving K supply can potentially enhance fiber yield. Higher yield gaps were observed for bula, with P accounting for the highest yield gaps across yield traits. Through careful targeting, the different yield attributes can thus be enhanced. This and previous studies clearly show that non-destructive enset plant assessments can provide solid information for quick and easy yield assessments for various traits during e.g., agronomic, germplasm evaluation, soil fertility enhancement, and intercropping trials. |
| format | Journal Article |
| id | CGSpace116468 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1164682025-11-11T17:45:13Z Estimating yield components, limiting factors, and yield gaps of Enset in Ethiopia using easily measurable above-ground plant traits Yemataw, Zerihun Said, Alemar Dejene, Tesfaye Ocimati, Walter Amwonya, David Blomme, Guy regression analysis yield gap yield components limiting factors análisis de la regresión diferencias de rendimiento caracteres de rendimiento The quantification of yield for different enset products has mainly been based on farmers’ estimates, which are often inaccurate. Several allometric models have been developed to overcome this challenge. Building on past work, the current study developed allometric models for enset fiber, kocho, and bula yield estimation. Enset yield limiting factors and associated yield gaps were also determined. In this study, above-ground growth and yield (kocho, bula, and fiber) traits of five-year-old plants of two widely grown enset landraces, ‘Unjame’ and ‘Siskela’, were assessed in farmers’ fields at three contrasting altitude sites. Except for bula, a minor yield component, correlation, and PCA analysis showed strong association between the above-ground and yield traits. Allometric equations based on the above-ground traits significantly (R2 = 25 to 68%) explained the variation in the yield traits. This study, for the first time, generated allometric models that can reliably estimate enset fiber yield. Leaf length, petiole length, and plant height are especially good for estimating fiber and kocho yields. The performance of models for bula were poor possibly due to the very low bula yields per plant. Soil chemical characteristics differently influenced enset yield attributes. For example, improving K supply can potentially enhance fiber yield. Higher yield gaps were observed for bula, with P accounting for the highest yield gaps across yield traits. Through careful targeting, the different yield attributes can thus be enhanced. This and previous studies clearly show that non-destructive enset plant assessments can provide solid information for quick and easy yield assessments for various traits during e.g., agronomic, germplasm evaluation, soil fertility enhancement, and intercropping trials. 2021-11-30 2021-12-02T09:37:54Z 2021-12-02T09:37:54Z Journal Article https://hdl.handle.net/10568/116468 en Open Access application/pdf MDPI Yemataw, Z.; Said, A.; Dejene, T.; Ocimati, W.; Amwonya, D.; Blomme, G. (2021) Estimating yield components, limiting factors, and yield gaps of Enset in Ethiopia using easily measurable above-ground plant traits. Sustainability 13(23): 13255. ISSN: 2071-1050 |
| spellingShingle | regression analysis yield gap yield components limiting factors análisis de la regresión diferencias de rendimiento caracteres de rendimiento Yemataw, Zerihun Said, Alemar Dejene, Tesfaye Ocimati, Walter Amwonya, David Blomme, Guy Estimating yield components, limiting factors, and yield gaps of Enset in Ethiopia using easily measurable above-ground plant traits |
| title | Estimating yield components, limiting factors, and yield gaps of Enset in Ethiopia using easily measurable above-ground plant traits |
| title_full | Estimating yield components, limiting factors, and yield gaps of Enset in Ethiopia using easily measurable above-ground plant traits |
| title_fullStr | Estimating yield components, limiting factors, and yield gaps of Enset in Ethiopia using easily measurable above-ground plant traits |
| title_full_unstemmed | Estimating yield components, limiting factors, and yield gaps of Enset in Ethiopia using easily measurable above-ground plant traits |
| title_short | Estimating yield components, limiting factors, and yield gaps of Enset in Ethiopia using easily measurable above-ground plant traits |
| title_sort | estimating yield components limiting factors and yield gaps of enset in ethiopia using easily measurable above ground plant traits |
| topic | regression analysis yield gap yield components limiting factors análisis de la regresión diferencias de rendimiento caracteres de rendimiento |
| url | https://hdl.handle.net/10568/116468 |
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