Olive floral development in different hedgerow positions and orientations as affected by irradiance
Irradiance received within the olive hedgerow canopy varies with respect to row orientation, spacing and hedge dimensions. These orchard management criteria offer the opportunity for improving productivity based on understanding the responses of yield-determining processes to irradiance. How irradia...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0304423817303680 http://hdl.handle.net/20.500.12123/2666 https://doi.org/10.1016/j.scienta.2017.06.029 |
| _version_ | 1855035004516564992 |
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| author | Trentacoste, Eduardo Rafael Moreno Alías, I. Gómez del Campo, María Beyá-Marshall, Victor Rapoport, Hava F. |
| author_browse | Beyá-Marshall, Victor Gómez del Campo, María Moreno Alías, I. Rapoport, Hava F. Trentacoste, Eduardo Rafael |
| author_facet | Trentacoste, Eduardo Rafael Moreno Alías, I. Gómez del Campo, María Beyá-Marshall, Victor Rapoport, Hava F. |
| author_sort | Trentacoste, Eduardo Rafael |
| collection | INTA Digital |
| description | Irradiance received within the olive hedgerow canopy varies with respect to row orientation, spacing and hedge dimensions. These orchard management criteria offer the opportunity for improving productivity based on understanding the responses of yield-determining processes to irradiance. How irradiance influences inflorescence and flower development, the initial steps in fruit formation, are fundamental components of these processes. In this study we evaluated flowering and fruiting parameters in 5 hedgerow positions (defined by hedgerow side and vertical layer above soil) for N–S (North-South) and E–W (East–West) olive hedgerows (cv. Arbequina). The canopy layers and orientations provided a wide gradient of irradiance received and the relationship of estimated mean daily irradiance for annual and for short periods during floral development and initial fruit set was explored. The numbers of inflorescences and fruits per layer increased from the less illuminated base to more illuminated upper canopy layers. Axillary bud number per shoot also increased toward more illuminated positions, while the proportion of floral buds was unresponsive to the irradiance microenvironment at different positions within the hedgerows. Inflorescence length, node and flower number per inflorescence, and perfect flower percentage increased with position illumination. Ovary quality, indicated by ovule differentiation, was consistently high, independent of position, but ovary size showed some slight significant increases with illumination, mainly in the endocarp. Flowers/inflorescence, fruits/fruiting inflorescence and inflorescence and fruit number per position correlated positively and significantly with estimated irradiance similarly for annual and short periods (r range from 0.49 to 0.86). Despite improved flowering parameters with greater irradiance, no consistent differences among positions were found for percentage of inflorescences bearing fruit and fruit number per inflorescence. Instead, our results indicated that different fruit numbers among canopy positions were primarily due to an irradiance effect on vegetative growth, causing more and longer fruiting shoots and therefore more total flowering sites (nodes) per layer, with only a small contribution by inflorescence structure and flower quality. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2666 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA26662019-01-11T18:46:14Z Olive floral development in different hedgerow positions and orientations as affected by irradiance Trentacoste, Eduardo Rafael Moreno Alías, I. Gómez del Campo, María Beyá-Marshall, Victor Rapoport, Hava F. Olea Europaea Aceituna Floración Plantas para Cercas Vivas Inflorescencias Olives Flowering Hedging Plants Inflorescences Irradiance received within the olive hedgerow canopy varies with respect to row orientation, spacing and hedge dimensions. These orchard management criteria offer the opportunity for improving productivity based on understanding the responses of yield-determining processes to irradiance. How irradiance influences inflorescence and flower development, the initial steps in fruit formation, are fundamental components of these processes. In this study we evaluated flowering and fruiting parameters in 5 hedgerow positions (defined by hedgerow side and vertical layer above soil) for N–S (North-South) and E–W (East–West) olive hedgerows (cv. Arbequina). The canopy layers and orientations provided a wide gradient of irradiance received and the relationship of estimated mean daily irradiance for annual and for short periods during floral development and initial fruit set was explored. The numbers of inflorescences and fruits per layer increased from the less illuminated base to more illuminated upper canopy layers. Axillary bud number per shoot also increased toward more illuminated positions, while the proportion of floral buds was unresponsive to the irradiance microenvironment at different positions within the hedgerows. Inflorescence length, node and flower number per inflorescence, and perfect flower percentage increased with position illumination. Ovary quality, indicated by ovule differentiation, was consistently high, independent of position, but ovary size showed some slight significant increases with illumination, mainly in the endocarp. Flowers/inflorescence, fruits/fruiting inflorescence and inflorescence and fruit number per position correlated positively and significantly with estimated irradiance similarly for annual and short periods (r range from 0.49 to 0.86). Despite improved flowering parameters with greater irradiance, no consistent differences among positions were found for percentage of inflorescences bearing fruit and fruit number per inflorescence. Instead, our results indicated that different fruit numbers among canopy positions were primarily due to an irradiance effect on vegetative growth, causing more and longer fruiting shoots and therefore more total flowering sites (nodes) per layer, with only a small contribution by inflorescence structure and flower quality. EEA Junín Fil: Trentacoste, Eduardo Rafael. Consejo Superior de Investigaciones Científicas (CSIC). Instituto de Agricultura Sostenible; España. Universidad Politécnica de Madrid. CEIGRAM; España. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina Fil: Moreno Alías, I. Consejo Superior de Investigaciones Científicas (CSIC). Instituto de Agricultura Sostenible; España Fil: Gómez del Campo, María. Universidad Politécnica de Madrid. CEIGRAM; España Fil: Beyá-Marshall, V. Consejo Superior de Investigaciones Científicas (CSIC). Instituto de Agricultura Sostenible; España. Universidad de Chile. Departamento de Producción Agrícola; Chile Fil: Rapoport, Hava F. Consejo Superior de Investigaciones Científicas (CSIC). Instituto de Agricultura Sostenible; España 2018-06-21T13:19:17Z 2018-06-21T13:19:17Z 2017-11-18 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0304423817303680 http://hdl.handle.net/20.500.12123/2666 0304-4238 https://doi.org/10.1016/j.scienta.2017.06.029 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 Scientia Horticulturae 225 : 226-234 (November 2017) |
| spellingShingle | Olea Europaea Aceituna Floración Plantas para Cercas Vivas Inflorescencias Olives Flowering Hedging Plants Inflorescences Trentacoste, Eduardo Rafael Moreno Alías, I. Gómez del Campo, María Beyá-Marshall, Victor Rapoport, Hava F. Olive floral development in different hedgerow positions and orientations as affected by irradiance |
| title | Olive floral development in different hedgerow positions and orientations as affected by irradiance |
| title_full | Olive floral development in different hedgerow positions and orientations as affected by irradiance |
| title_fullStr | Olive floral development in different hedgerow positions and orientations as affected by irradiance |
| title_full_unstemmed | Olive floral development in different hedgerow positions and orientations as affected by irradiance |
| title_short | Olive floral development in different hedgerow positions and orientations as affected by irradiance |
| title_sort | olive floral development in different hedgerow positions and orientations as affected by irradiance |
| topic | Olea Europaea Aceituna Floración Plantas para Cercas Vivas Inflorescencias Olives Flowering Hedging Plants Inflorescences |
| url | https://www.sciencedirect.com/science/article/pii/S0304423817303680 http://hdl.handle.net/20.500.12123/2666 https://doi.org/10.1016/j.scienta.2017.06.029 |
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