Agro-morphological characterization of tarwi (Lupinus mutabilis Sweet) accessions using descriptors and spectral metrics derived from UAVs
Tarwi (Lupinus mutabilis S.) is a legume native to the Andes, recognized for its high nutritional value, which gives it great potential in food security programs. Therefore, understanding and advancing the conservation of its morphological diversity is essential. In this study, 140 accessions from t...
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| Format: | Artículo |
| Language: | Inglés |
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Universidad Nacional de Trujillo, Facultad de Ciencias Agropecuarias
2026
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| Online Access: | http://hdl.handle.net/20.500.12955/2989 https://doi.org/10.17268/sci.agropecu.2026.016 |
| _version_ | 1855490437733679104 |
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| author | Peña Elme, Eunice Corcas Ortega Quispe, Kevin Abner Enriquez Pinedo, Lucía Carolina Cerrón Mercado, Francis Gladys Amaro Camarena, Nery Amelia Girón Aguilar, Rita Carolina Loayza Loza, Hildo Pizarro Carcausto, Samuel |
| author_browse | Amaro Camarena, Nery Amelia Cerrón Mercado, Francis Gladys Enriquez Pinedo, Lucía Carolina Girón Aguilar, Rita Carolina Loayza Loza, Hildo Ortega Quispe, Kevin Abner Peña Elme, Eunice Corcas Pizarro Carcausto, Samuel |
| author_facet | Peña Elme, Eunice Corcas Ortega Quispe, Kevin Abner Enriquez Pinedo, Lucía Carolina Cerrón Mercado, Francis Gladys Amaro Camarena, Nery Amelia Girón Aguilar, Rita Carolina Loayza Loza, Hildo Pizarro Carcausto, Samuel |
| author_sort | Peña Elme, Eunice Corcas |
| collection | Repositorio INIA |
| description | Tarwi (Lupinus mutabilis S.) is a legume native to the Andes, recognized for its high nutritional value, which gives it great potential in food security programs. Therefore, understanding and advancing the conservation of its morphological diversity is essential. In this study, 140 accessions from the national germplasm collection of the National Institute of Agrarian Innovation of Peru were evaluated, along with two cultivars ("INIA 445 Masacanchino" and "Andenes 90"). A traditional agro-morphological characterization was conducted using 16 quantitative and 40 qualitative descriptors, complemented by phenological data obtained from time series of reflectance indices generated by Unmanned Aerial Vehicles (UAVs). Additionally, a principal component analysis (PCA) was applied to select the most relevant variables, and a clustering analysis along with a dendrogram was developed to classify the accessions. The results revealed significant differences between groups (p < 0.05) in terms of inflorescence length, number of pods on the main axis, number of primary branches, and yield per plant. Likewise, the morphological groups exhibited variations in phenophases derived from the Normalized Difference Vegetation Index (NDVI). Four morphological groups were identified: group 3 (G3) showed the highest growth rate followed by a decline, while group 4 (G4) stood out for its highest initial growth rate. Furthermore, the observed homogeneous phenological conditions indicated that groups 1 (G1) and 4 (G4) matured earlier, making them promising candidates for selection. These findings demonstrate the wide genetic variability of tarwi, which can be exploited in breeding programs for the development of new cultivars. Thus, the study highlights the importance of morphological characterization in understanding the variability of an understudied crop such as tarwi, contributing to conservation and promoting its protection and sustainability. |
| format | Artículo |
| id | INIA2989 |
| institution | Institucional Nacional de Innovación Agraria |
| language | Inglés |
| publishDate | 2026 |
| publishDateRange | 2026 |
| publishDateSort | 2026 |
| publisher | Universidad Nacional de Trujillo, Facultad de Ciencias Agropecuarias |
| publisherStr | Universidad Nacional de Trujillo, Facultad de Ciencias Agropecuarias |
| record_format | dspace |
| spelling | INIA29892026-01-15T21:45:06Z Agro-morphological characterization of tarwi (Lupinus mutabilis Sweet) accessions using descriptors and spectral metrics derived from UAVs Peña Elme, Eunice Corcas Ortega Quispe, Kevin Abner Enriquez Pinedo, Lucía Carolina Cerrón Mercado, Francis Gladys Amaro Camarena, Nery Amelia Girón Aguilar, Rita Carolina Loayza Loza, Hildo Pizarro Carcausto, Samuel Cultivars Conservation Germplasm Variability Photogrammetry UAVs Cultivares Conservación Germoplasma Variabilidad Fotogrametría UAVs. https://purl.org/pe-repo/ocde/ford#4.01.01 Lupinus mutabilis; Vehículo aéreo no tripulado; Unmanned aerial vehicles; Fotogrametría; Photogrammetry; Fenología; Phenology; Fitomejoramiento; Plant breeding; Leguminosa; Legumes Tarwi (Lupinus mutabilis S.) is a legume native to the Andes, recognized for its high nutritional value, which gives it great potential in food security programs. Therefore, understanding and advancing the conservation of its morphological diversity is essential. In this study, 140 accessions from the national germplasm collection of the National Institute of Agrarian Innovation of Peru were evaluated, along with two cultivars ("INIA 445 Masacanchino" and "Andenes 90"). A traditional agro-morphological characterization was conducted using 16 quantitative and 40 qualitative descriptors, complemented by phenological data obtained from time series of reflectance indices generated by Unmanned Aerial Vehicles (UAVs). Additionally, a principal component analysis (PCA) was applied to select the most relevant variables, and a clustering analysis along with a dendrogram was developed to classify the accessions. The results revealed significant differences between groups (p < 0.05) in terms of inflorescence length, number of pods on the main axis, number of primary branches, and yield per plant. Likewise, the morphological groups exhibited variations in phenophases derived from the Normalized Difference Vegetation Index (NDVI). Four morphological groups were identified: group 3 (G3) showed the highest growth rate followed by a decline, while group 4 (G4) stood out for its highest initial growth rate. Furthermore, the observed homogeneous phenological conditions indicated that groups 1 (G1) and 4 (G4) matured earlier, making them promising candidates for selection. These findings demonstrate the wide genetic variability of tarwi, which can be exploited in breeding programs for the development of new cultivars. Thus, the study highlights the importance of morphological characterization in understanding the variability of an understudied crop such as tarwi, contributing to conservation and promoting its protection and sustainability. The authors express their sincere gratitude to the team actively involved in the investment projects of the National Institute of Agrarian Innovation (INIA): "PROAGROBIO" (CUI N° 2480490) and "AGPRES" (CUI N° 2449640), as well as to the staff of the Subdirectorate of Genetic Resources and the Santa Ana Agricultural Experimental Station for their valuable collaboration. 2026-01-15T20:41:45Z 2026-01-15T20:41:45Z 2025-12-22 info:eu-repo/semantics/article Peña-Elme, E., Ortega-Quispe, K., Enriquez-Pinedo, L., Cerrón-Mercado, F., Amaro-Camarena, N., Girón-Aguilar, C., Loayza-Loza, H., & Pizarro-Carcausto, S. (2025). Agro-morphological characterization of tarwi (Lupinus mutabilis Sweet) accessions using descriptors and spectral metrics derived from UAVs. Scientia Agropecuaria, 17(1), 227-241. https://doi.org/10.17268/sci.agropecu.2026.016 2077-9917 http://hdl.handle.net/20.500.12955/2989 https://doi.org/10.17268/sci.agropecu.2026.016 eng urn:issn:2077-9917 Scientia Agropecuaria info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/nc/4.0/ application/pdf application/pdf Universidad Nacional de Trujillo, Facultad de Ciencias Agropecuarias PE Instituto Nacional de Innovación Agraria Repositorio Institucional - INIA |
| spellingShingle | Cultivars Conservation Germplasm Variability Photogrammetry UAVs Cultivares Conservación Germoplasma Variabilidad Fotogrametría UAVs. https://purl.org/pe-repo/ocde/ford#4.01.01 Lupinus mutabilis; Vehículo aéreo no tripulado; Unmanned aerial vehicles; Fotogrametría; Photogrammetry; Fenología; Phenology; Fitomejoramiento; Plant breeding; Leguminosa; Legumes Peña Elme, Eunice Corcas Ortega Quispe, Kevin Abner Enriquez Pinedo, Lucía Carolina Cerrón Mercado, Francis Gladys Amaro Camarena, Nery Amelia Girón Aguilar, Rita Carolina Loayza Loza, Hildo Pizarro Carcausto, Samuel Agro-morphological characterization of tarwi (Lupinus mutabilis Sweet) accessions using descriptors and spectral metrics derived from UAVs |
| title | Agro-morphological characterization of tarwi (Lupinus mutabilis Sweet) accessions using descriptors and spectral metrics derived from UAVs |
| title_full | Agro-morphological characterization of tarwi (Lupinus mutabilis Sweet) accessions using descriptors and spectral metrics derived from UAVs |
| title_fullStr | Agro-morphological characterization of tarwi (Lupinus mutabilis Sweet) accessions using descriptors and spectral metrics derived from UAVs |
| title_full_unstemmed | Agro-morphological characterization of tarwi (Lupinus mutabilis Sweet) accessions using descriptors and spectral metrics derived from UAVs |
| title_short | Agro-morphological characterization of tarwi (Lupinus mutabilis Sweet) accessions using descriptors and spectral metrics derived from UAVs |
| title_sort | agro morphological characterization of tarwi lupinus mutabilis sweet accessions using descriptors and spectral metrics derived from uavs |
| topic | Cultivars Conservation Germplasm Variability Photogrammetry UAVs Cultivares Conservación Germoplasma Variabilidad Fotogrametría UAVs. https://purl.org/pe-repo/ocde/ford#4.01.01 Lupinus mutabilis; Vehículo aéreo no tripulado; Unmanned aerial vehicles; Fotogrametría; Photogrammetry; Fenología; Phenology; Fitomejoramiento; Plant breeding; Leguminosa; Legumes |
| url | http://hdl.handle.net/20.500.12955/2989 https://doi.org/10.17268/sci.agropecu.2026.016 |
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