A novel remote sensing approach for prediction of maize yield under different conditions of nitrogen fertilization
Maize crop production is constrained worldwide by nitrogen (N) availability and particularly in poor tropical and subtropical soils. The development of affordable high-throughput crop monitoring and phenotyping techniques is key to improving maize cultivation under low-N fertilization. In this study several vegetation indices (VIs) derived from Red-Green-Blue (RGB) digital images at the leaf and canopy levels are proposed as low-cost tools for plant breeding and fertilization management. They were compared with the performance of the normalized difference vegetation index (NDVI) measured at ground level and from an aerial platform, as well as with leaf chlorophyll content (LCC) and other leaf composition and structural parameters at flowering stage. A set of 10 hybrids grown under five different nitrogen regimes and adequate water conditions were tested at the CIMMYT station of Harare (Zimbabwe). Grain yield and leaf N concentration across N fertilization levels were strongly predicted by most of these RGB indices (with R2~ 0.7), outperforming the prediction power of the NDVI and LCC. RGB indices also outperformed the NDVI when assessing genotypic differences in grain yield and leaf N concentration within a given level of N fertilization. The best predictor of leaf N concentration across the five N regimes was LCC but its performance within N treatments was inefficient. The leaf traits evaluated also seemed inefficient as phenotyping parameters. It is concluded that the adoption of RGB-based phenotyping techniques may significantly contribute to the progress of plant breeding and the appropriate management of fertilization.
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| Format: | Article biblioteca |
| Language: | English |
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Frontiers
2016
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| Subjects: | AGRICULTURAL SCIENCES AND BIOTECHNOLOGY, Field Phenotyping, Nitrogen Fertilization, RGB Indices, PLANT BREEDING, CROP MANAGEMENT, PHENOTYPES, FIELD EXPERIMENTATION, REMOTE SENSING, MAIZE, NITROGEN FERTILIZERS, NORMALIZED DIFFERENCE VEGETATION INDEX, |
| Online Access: | http://hdl.handle.net/10883/18835 |
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dig-cimmyt-10883-188352023-11-15T21:22:39Z A novel remote sensing approach for prediction of maize yield under different conditions of nitrogen fertilization Vergara Diaz, O. Zaman-Allah, M. Masuka, B. Hornero, A. Zarco‑Tejada, P.J. Prasanna, B.M. Cairns, J.E. Araus, J.L. AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Field Phenotyping Nitrogen Fertilization RGB Indices PLANT BREEDING CROP MANAGEMENT PHENOTYPES FIELD EXPERIMENTATION REMOTE SENSING MAIZE NITROGEN FERTILIZERS NORMALIZED DIFFERENCE VEGETATION INDEX Maize crop production is constrained worldwide by nitrogen (N) availability and particularly in poor tropical and subtropical soils. The development of affordable high-throughput crop monitoring and phenotyping techniques is key to improving maize cultivation under low-N fertilization. In this study several vegetation indices (VIs) derived from Red-Green-Blue (RGB) digital images at the leaf and canopy levels are proposed as low-cost tools for plant breeding and fertilization management. They were compared with the performance of the normalized difference vegetation index (NDVI) measured at ground level and from an aerial platform, as well as with leaf chlorophyll content (LCC) and other leaf composition and structural parameters at flowering stage. A set of 10 hybrids grown under five different nitrogen regimes and adequate water conditions were tested at the CIMMYT station of Harare (Zimbabwe). Grain yield and leaf N concentration across N fertilization levels were strongly predicted by most of these RGB indices (with R2~ 0.7), outperforming the prediction power of the NDVI and LCC. RGB indices also outperformed the NDVI when assessing genotypic differences in grain yield and leaf N concentration within a given level of N fertilization. The best predictor of leaf N concentration across the five N regimes was LCC but its performance within N treatments was inefficient. The leaf traits evaluated also seemed inefficient as phenotyping parameters. It is concluded that the adoption of RGB-based phenotyping techniques may significantly contribute to the progress of plant breeding and the appropriate management of fertilization. pages 1-13 2017-08-16T16:17:38Z 2017-08-16T16:17:38Z 2016 Article http://hdl.handle.net/10883/18835 10.3389/fpls.2016.00666 English https://www.frontiersin.org/articles/10.3389/fpls.2016.00666/full#h9 CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose. Open Access PDF HARARE ZIMBABWE Switzerland Frontiers v. 7 Frontiers in Plant Science 666 |
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AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Field Phenotyping Nitrogen Fertilization RGB Indices PLANT BREEDING CROP MANAGEMENT PHENOTYPES FIELD EXPERIMENTATION REMOTE SENSING MAIZE NITROGEN FERTILIZERS NORMALIZED DIFFERENCE VEGETATION INDEX AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Field Phenotyping Nitrogen Fertilization RGB Indices PLANT BREEDING CROP MANAGEMENT PHENOTYPES FIELD EXPERIMENTATION REMOTE SENSING MAIZE NITROGEN FERTILIZERS NORMALIZED DIFFERENCE VEGETATION INDEX |
| spellingShingle |
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Field Phenotyping Nitrogen Fertilization RGB Indices PLANT BREEDING CROP MANAGEMENT PHENOTYPES FIELD EXPERIMENTATION REMOTE SENSING MAIZE NITROGEN FERTILIZERS NORMALIZED DIFFERENCE VEGETATION INDEX AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Field Phenotyping Nitrogen Fertilization RGB Indices PLANT BREEDING CROP MANAGEMENT PHENOTYPES FIELD EXPERIMENTATION REMOTE SENSING MAIZE NITROGEN FERTILIZERS NORMALIZED DIFFERENCE VEGETATION INDEX Vergara Diaz, O. Zaman-Allah, M. Masuka, B. Hornero, A. Zarco‑Tejada, P.J. Prasanna, B.M. Cairns, J.E. Araus, J.L. A novel remote sensing approach for prediction of maize yield under different conditions of nitrogen fertilization |
| description |
Maize crop production is constrained worldwide by nitrogen (N) availability and particularly in poor tropical and subtropical soils. The development of affordable high-throughput crop monitoring and phenotyping techniques is key to improving maize cultivation under low-N fertilization. In this study several vegetation indices (VIs) derived from Red-Green-Blue (RGB) digital images at the leaf and canopy levels are proposed as low-cost tools for plant breeding and fertilization management. They were compared with the performance of the normalized difference vegetation index (NDVI) measured at ground level and from an aerial platform, as well as with leaf chlorophyll content (LCC) and other leaf composition and structural parameters at flowering stage. A set of 10 hybrids grown under five different nitrogen regimes and adequate water conditions were tested at the CIMMYT station of Harare (Zimbabwe). Grain yield and leaf N concentration across N fertilization levels were strongly predicted by most of these RGB indices (with R2~ 0.7), outperforming the prediction power of the NDVI and LCC. RGB indices also outperformed the NDVI when assessing genotypic differences in grain yield and leaf N concentration within a given level of N fertilization. The best predictor of leaf N concentration across the five N regimes was LCC but its performance within N treatments was inefficient. The leaf traits evaluated also seemed inefficient as phenotyping parameters. It is concluded that the adoption of RGB-based phenotyping techniques may significantly contribute to the progress of plant breeding and the appropriate management of fertilization. |
| format |
Article |
| topic_facet |
AGRICULTURAL SCIENCES AND BIOTECHNOLOGY Field Phenotyping Nitrogen Fertilization RGB Indices PLANT BREEDING CROP MANAGEMENT PHENOTYPES FIELD EXPERIMENTATION REMOTE SENSING MAIZE NITROGEN FERTILIZERS NORMALIZED DIFFERENCE VEGETATION INDEX |
| author |
Vergara Diaz, O. Zaman-Allah, M. Masuka, B. Hornero, A. Zarco‑Tejada, P.J. Prasanna, B.M. Cairns, J.E. Araus, J.L. |
| author_facet |
Vergara Diaz, O. Zaman-Allah, M. Masuka, B. Hornero, A. Zarco‑Tejada, P.J. Prasanna, B.M. Cairns, J.E. Araus, J.L. |
| author_sort |
Vergara Diaz, O. |
| title |
A novel remote sensing approach for prediction of maize yield under different conditions of nitrogen fertilization |
| title_short |
A novel remote sensing approach for prediction of maize yield under different conditions of nitrogen fertilization |
| title_full |
A novel remote sensing approach for prediction of maize yield under different conditions of nitrogen fertilization |
| title_fullStr |
A novel remote sensing approach for prediction of maize yield under different conditions of nitrogen fertilization |
| title_full_unstemmed |
A novel remote sensing approach for prediction of maize yield under different conditions of nitrogen fertilization |
| title_sort |
novel remote sensing approach for prediction of maize yield under different conditions of nitrogen fertilization |
| publisher |
Frontiers |
| publishDate |
2016 |
| url |
http://hdl.handle.net/10883/18835 |
| work_keys_str_mv |
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