Relationships between olive yield components and simulated irradiance within hedgerows of various row orientations and spacings
An model of distribution of irradiance within hedgerows is shown to explain well the distribution of fruit size and oil concentration, and less so fruit density, within a range of super-high density (SHD) rectangular olive hedgerow structures of various combinations of row orientation and spacing. Results reveal that profiles of fruit size, oil concentration and fruit density of the orientation and spacing experiments are best explained by simulated mean daily horizontal irradiance on the component foliage for the periods DOY (day of year) 150–180 and DOY 180–210, when fruit number is defined (i.e., flowering, fruit set and fruit drop). In all experiments, analyzed individually, relationships of fruit size and oil concentration were linear over the range of irradiance [8–50 mol photosynthetically active radiation (PAR)/m2] but fruit density was linear to a maximum density achieved around 27 mol PAR/m2 (40% of incident irradiance). When data from all experiments were normalized and pooled in single relationships, fruit size (R2 = 0.76; P < 0.001; n = 110) and oil concentration (R2 = 0.65; P < 0.001; n = 110) remained strongly linear while fruit density increased linearly (R2 = 0.31; P < 0.01; n = 80) to a maximum value at 28 mol/m2 (41% horizontally incident). The model was also used to estimate daily radiation interception by the hedgerows in order to calculate radiation-use efficiency (RUE) for oil production. The average annual RUE was 0.0269 ± 0.0018 g oil/mol PAR (0.1232 ± 0.0061 g/MJ PAR) with relatively little variation over the range of hedgerow orientation and spacing in which interception of incident irradiance varied 56–87%. The analyses reveal that the present model can assist design and analysis of performance of a wide range of olive hedgerow orchard structures and also the design and analysis of future experiments required to extend knowledge to a wider range of hedgerow structures and environments.
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2016-01-26
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Subjects: | Olea Europaea, Rendimiento, Plantas para Cercas Vivas, Orientación, Espaciamiento, Yields, Hedging Plants, Orientation, Spacing, |
Online Access: | https://www.sciencedirect.com/science/article/pii/S0304423815302831 http://hdl.handle.net/20.500.12123/2671 https://doi.org/10.1016/j.scienta.2015.11.009 |
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oai:localhost:20.500.12123-26712018-06-22T12:13:15Z Relationships between olive yield components and simulated irradiance within hedgerows of various row orientations and spacings Connor, David J. Gómez del Campo, María Trentacoste, Eduardo Rafael Olea Europaea Rendimiento Plantas para Cercas Vivas Orientación Espaciamiento Yields Hedging Plants Orientation Spacing An model of distribution of irradiance within hedgerows is shown to explain well the distribution of fruit size and oil concentration, and less so fruit density, within a range of super-high density (SHD) rectangular olive hedgerow structures of various combinations of row orientation and spacing. Results reveal that profiles of fruit size, oil concentration and fruit density of the orientation and spacing experiments are best explained by simulated mean daily horizontal irradiance on the component foliage for the periods DOY (day of year) 150–180 and DOY 180–210, when fruit number is defined (i.e., flowering, fruit set and fruit drop). In all experiments, analyzed individually, relationships of fruit size and oil concentration were linear over the range of irradiance [8–50 mol photosynthetically active radiation (PAR)/m2] but fruit density was linear to a maximum density achieved around 27 mol PAR/m2 (40% of incident irradiance). When data from all experiments were normalized and pooled in single relationships, fruit size (R2 = 0.76; P < 0.001; n = 110) and oil concentration (R2 = 0.65; P < 0.001; n = 110) remained strongly linear while fruit density increased linearly (R2 = 0.31; P < 0.01; n = 80) to a maximum value at 28 mol/m2 (41% horizontally incident). The model was also used to estimate daily radiation interception by the hedgerows in order to calculate radiation-use efficiency (RUE) for oil production. The average annual RUE was 0.0269 ± 0.0018 g oil/mol PAR (0.1232 ± 0.0061 g/MJ PAR) with relatively little variation over the range of hedgerow orientation and spacing in which interception of incident irradiance varied 56–87%. The analyses reveal that the present model can assist design and analysis of performance of a wide range of olive hedgerow orchard structures and also the design and analysis of future experiments required to extend knowledge to a wider range of hedgerow structures and environments. EEA Junín Fil: Connor, David J. University of Melbourne. Faculty of Veterinary and Agricultural Sciences; Australia Fil: Gómez del Campo, María. Universidad Politécnica de Madrid. Departamento de Producción Agraria; España Fil: Trentacoste, Eduardo Rafael. Universidad Politécnica de Madrid. Departamento de Producción Agraria; España. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina 2018-06-22T12:11:54Z 2018-06-22T12:11:54Z 2016-01-26 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0304423815302831 http://hdl.handle.net/20.500.12123/2671 0304-4238 https://doi.org/10.1016/j.scienta.2015.11.009 eng info:eu-repo/semantics/restrictedAccess application/pdf Scientia Horticulturae 198 : 12-20 (January 2016) |
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Olea Europaea Rendimiento Plantas para Cercas Vivas Orientación Espaciamiento Yields Hedging Plants Orientation Spacing Olea Europaea Rendimiento Plantas para Cercas Vivas Orientación Espaciamiento Yields Hedging Plants Orientation Spacing |
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Olea Europaea Rendimiento Plantas para Cercas Vivas Orientación Espaciamiento Yields Hedging Plants Orientation Spacing Olea Europaea Rendimiento Plantas para Cercas Vivas Orientación Espaciamiento Yields Hedging Plants Orientation Spacing Connor, David J. Gómez del Campo, María Trentacoste, Eduardo Rafael Relationships between olive yield components and simulated irradiance within hedgerows of various row orientations and spacings |
description |
An model of distribution of irradiance within hedgerows is shown to explain well the distribution of fruit size and oil concentration, and less so fruit density, within a range of super-high density (SHD) rectangular olive hedgerow structures of various combinations of row orientation and spacing. Results reveal that profiles of fruit size, oil concentration and fruit density of the orientation and spacing experiments are best explained by simulated mean daily horizontal irradiance on the component foliage for the periods DOY (day of year) 150–180 and DOY 180–210, when fruit number is defined (i.e., flowering, fruit set and fruit drop). In all experiments, analyzed individually, relationships of fruit size and oil concentration were linear over the range of irradiance [8–50 mol photosynthetically active radiation (PAR)/m2] but fruit density was linear to a maximum density achieved around 27 mol PAR/m2 (40% of incident irradiance). When data from all experiments were normalized and pooled in single relationships, fruit size (R2 = 0.76; P < 0.001; n = 110) and oil concentration (R2 = 0.65; P < 0.001; n = 110) remained strongly linear while fruit density increased linearly (R2 = 0.31; P < 0.01; n = 80) to a maximum value at 28 mol/m2 (41% horizontally incident). The model was also used to estimate daily radiation interception by the hedgerows in order to calculate radiation-use efficiency (RUE) for oil production. The average annual RUE was 0.0269 ± 0.0018 g oil/mol PAR (0.1232 ± 0.0061 g/MJ PAR) with relatively little variation over the range of hedgerow orientation and spacing in which interception of incident irradiance varied 56–87%. The analyses reveal that the present model can assist design and analysis of performance of a wide range of olive hedgerow orchard structures and also the design and analysis of future experiments required to extend knowledge to a wider range of hedgerow structures and environments. |
format |
info:ar-repo/semantics/artículo |
topic_facet |
Olea Europaea Rendimiento Plantas para Cercas Vivas Orientación Espaciamiento Yields Hedging Plants Orientation Spacing |
author |
Connor, David J. Gómez del Campo, María Trentacoste, Eduardo Rafael |
author_facet |
Connor, David J. Gómez del Campo, María Trentacoste, Eduardo Rafael |
author_sort |
Connor, David J. |
title |
Relationships between olive yield components and simulated irradiance within hedgerows of various row orientations and spacings |
title_short |
Relationships between olive yield components and simulated irradiance within hedgerows of various row orientations and spacings |
title_full |
Relationships between olive yield components and simulated irradiance within hedgerows of various row orientations and spacings |
title_fullStr |
Relationships between olive yield components and simulated irradiance within hedgerows of various row orientations and spacings |
title_full_unstemmed |
Relationships between olive yield components and simulated irradiance within hedgerows of various row orientations and spacings |
title_sort |
relationships between olive yield components and simulated irradiance within hedgerows of various row orientations and spacings |
publishDate |
2016-01-26 |
url |
https://www.sciencedirect.com/science/article/pii/S0304423815302831 http://hdl.handle.net/20.500.12123/2671 https://doi.org/10.1016/j.scienta.2015.11.009 |
work_keys_str_mv |
AT connordavidj relationshipsbetweenoliveyieldcomponentsandsimulatedirradiancewithinhedgerowsofvariousroworientationsandspacings AT gomezdelcampomaria relationshipsbetweenoliveyieldcomponentsandsimulatedirradiancewithinhedgerowsofvariousroworientationsandspacings AT trentacosteeduardorafael relationshipsbetweenoliveyieldcomponentsandsimulatedirradiancewithinhedgerowsofvariousroworientationsandspacings |
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