Light Quality Environment and Photomorphological Responses of Young Olive Trees
Tree densities have increased greatly in olive orchards over the last few decades. In many annual crop species, increased density reduces the horizontal red/far-red (R/FR) and blue/green (B/G) ratios during canopy development even before direct shading occurs, and such changes are known to alter pla...
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| Format: | Artículo |
| Language: | Inglés |
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MDPI
2022
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| Online Access: | http://hdl.handle.net/20.500.12123/11488 https://www.mdpi.com/2311-7524/7/10/369 https://doi.org/10.3390/horticulturae7100369 |
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| author | Ladux, Federico J. Trentacoste, Eduardo Rafael Searles, Peter Stoughton Rousseaux, María Cecilia |
| author_browse | Ladux, Federico J. Rousseaux, María Cecilia Searles, Peter Stoughton Trentacoste, Eduardo Rafael |
| author_facet | Ladux, Federico J. Trentacoste, Eduardo Rafael Searles, Peter Stoughton Rousseaux, María Cecilia |
| author_sort | Ladux, Federico J. |
| collection | INTA Digital |
| description | Tree densities have increased greatly in olive orchards over the last few decades. In many annual crop species, increased density reduces the horizontal red/far-red (R/FR) and blue/green (B/G) ratios during canopy development even before direct shading occurs, and such changes are known to alter plant morphology. This study with olive trees evaluated: (1) whether the leaf area index (LAI) of neighboring trees modifies the light quality environment prior to a tree being directly shaded and (2) the potential morphological responses of three olive cultivars to changes in light quality. Increasing LAI using different spatial arrangements of potted, three-year-old trees reduced the horizontal R/FR ratio more than that of the B/G ratio. Cultivar-specific responses to low R/FR ratio were observed for individual leaf area and aboveground/belowground biomass ratio using laterally positioned FR mirrors or green fences. No statistically significant responses were detected in response to green vegetation fences that reduced both horizontal R/FR and B/G ratios, but a cluster analysis grouped together the overall morphological responses to both FR mirrors and green fences. These results in olive trees suggest that cultivar differences in response to light quality may be relevant for understanding adaptation to dense orchards and identifying cultivars best suited to them. |
| format | Artículo |
| id | INTA11488 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | INTA114882022-03-25T12:08:31Z Light Quality Environment and Photomorphological Responses of Young Olive Trees Ladux, Federico J. Trentacoste, Eduardo Rafael Searles, Peter Stoughton Rousseaux, María Cecilia Olea Europaea Medio Ambiente Tolerancia a la Sombra Luz Variedades Environment Shade Tolerance Light Varieties Olivo Tree densities have increased greatly in olive orchards over the last few decades. In many annual crop species, increased density reduces the horizontal red/far-red (R/FR) and blue/green (B/G) ratios during canopy development even before direct shading occurs, and such changes are known to alter plant morphology. This study with olive trees evaluated: (1) whether the leaf area index (LAI) of neighboring trees modifies the light quality environment prior to a tree being directly shaded and (2) the potential morphological responses of three olive cultivars to changes in light quality. Increasing LAI using different spatial arrangements of potted, three-year-old trees reduced the horizontal R/FR ratio more than that of the B/G ratio. Cultivar-specific responses to low R/FR ratio were observed for individual leaf area and aboveground/belowground biomass ratio using laterally positioned FR mirrors or green fences. No statistically significant responses were detected in response to green vegetation fences that reduced both horizontal R/FR and B/G ratios, but a cluster analysis grouped together the overall morphological responses to both FR mirrors and green fences. These results in olive trees suggest that cultivar differences in response to light quality may be relevant for understanding adaptation to dense orchards and identifying cultivars best suited to them. EEA Junín Fil: Ladux, Federico J. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de la Rioja. - Secretaria de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina Fil: Trentacoste, Eduardo Rafael. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina Fil: Searles, Peter Stoughton. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de la Rioja. - Secretaria de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina Fil: Rousseaux, Maria Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Universidad Nacional de Catamarca. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de la Rioja. - Secretaria de Industria y Minería. Servicio Geológico Minero Argentino. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja. - Provincia de La Rioja. Centro Regional de Investigaciones Científicas y Transferencia Tecnológica de La Rioja; Argentina Fil: Rousseaux, Maria Cecilia. Universidad Nacional de La Rioja. Departamento de Ciencias Exactas, Físicas y Naturales; Argentina 2022-03-25T12:06:55Z 2022-03-25T12:06:55Z 2021-10 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11488 https://www.mdpi.com/2311-7524/7/10/369 2311-7524 https://doi.org/10.3390/horticulturae7100369 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf MDPI Horticulturae 7 (10) : 369 (October 2021) |
| spellingShingle | Olea Europaea Medio Ambiente Tolerancia a la Sombra Luz Variedades Environment Shade Tolerance Light Varieties Olivo Ladux, Federico J. Trentacoste, Eduardo Rafael Searles, Peter Stoughton Rousseaux, María Cecilia Light Quality Environment and Photomorphological Responses of Young Olive Trees |
| title | Light Quality Environment and Photomorphological Responses of Young Olive Trees |
| title_full | Light Quality Environment and Photomorphological Responses of Young Olive Trees |
| title_fullStr | Light Quality Environment and Photomorphological Responses of Young Olive Trees |
| title_full_unstemmed | Light Quality Environment and Photomorphological Responses of Young Olive Trees |
| title_short | Light Quality Environment and Photomorphological Responses of Young Olive Trees |
| title_sort | light quality environment and photomorphological responses of young olive trees |
| topic | Olea Europaea Medio Ambiente Tolerancia a la Sombra Luz Variedades Environment Shade Tolerance Light Varieties Olivo |
| url | http://hdl.handle.net/20.500.12123/11488 https://www.mdpi.com/2311-7524/7/10/369 https://doi.org/10.3390/horticulturae7100369 |
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