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Olive Crown Porosity Measurement Based on Radiation Transmittance: An Assessment of Pruning Effect
Crown porosity influences radiation interception, air movement through the fruit orchard, spray penetration, and harvesting operation in fruit crops. The aim of the present study was to develop an accurate and reliable methodology based on transmitted radiation measurements to assess the porosity of...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4883414/ https://www.ncbi.nlm.nih.gov/pubmed/27213391 http://dx.doi.org/10.3390/s16050723 |
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author | Castillo-Ruiz, Francisco J. Castro-Garcia, Sergio Blanco-Roldan, Gregorio L. Sola-Guirado, Rafael R. Gil-Ribes, Jesus A. |
author_facet | Castillo-Ruiz, Francisco J. Castro-Garcia, Sergio Blanco-Roldan, Gregorio L. Sola-Guirado, Rafael R. Gil-Ribes, Jesus A. |
author_sort | Castillo-Ruiz, Francisco J. |
collection | PubMed |
description | Crown porosity influences radiation interception, air movement through the fruit orchard, spray penetration, and harvesting operation in fruit crops. The aim of the present study was to develop an accurate and reliable methodology based on transmitted radiation measurements to assess the porosity of traditional olive trees under different pruning treatments. Transmitted radiation was employed as an indirect method to measure crown porosity in two olive orchards of the Picual and Hojiblanca cultivars. Additionally, three different pruning treatments were considered to determine if the pruning system influences crown porosity. This study evaluated the accuracy and repeatability of four algorithms in measuring crown porosity under different solar zenith angles. From a 14° to 30° solar zenith angle, the selected algorithm produced an absolute error of less than 5% and a repeatability higher than 0.9. The described method and selected algorithm proved satisfactory in field results, making it possible to measure crown porosity at different solar zenith angles. However, pruning fresh weight did not show any relationship with crown porosity due to the great differences between removed branches. A robust and accurate algorithm was selected for crown porosity measurements in traditional olive trees, making it possible to discern between different pruning treatments. |
format | Online Article Text |
id | pubmed-4883414 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-48834142016-05-27 Olive Crown Porosity Measurement Based on Radiation Transmittance: An Assessment of Pruning Effect Castillo-Ruiz, Francisco J. Castro-Garcia, Sergio Blanco-Roldan, Gregorio L. Sola-Guirado, Rafael R. Gil-Ribes, Jesus A. Sensors (Basel) Article Crown porosity influences radiation interception, air movement through the fruit orchard, spray penetration, and harvesting operation in fruit crops. The aim of the present study was to develop an accurate and reliable methodology based on transmitted radiation measurements to assess the porosity of traditional olive trees under different pruning treatments. Transmitted radiation was employed as an indirect method to measure crown porosity in two olive orchards of the Picual and Hojiblanca cultivars. Additionally, three different pruning treatments were considered to determine if the pruning system influences crown porosity. This study evaluated the accuracy and repeatability of four algorithms in measuring crown porosity under different solar zenith angles. From a 14° to 30° solar zenith angle, the selected algorithm produced an absolute error of less than 5% and a repeatability higher than 0.9. The described method and selected algorithm proved satisfactory in field results, making it possible to measure crown porosity at different solar zenith angles. However, pruning fresh weight did not show any relationship with crown porosity due to the great differences between removed branches. A robust and accurate algorithm was selected for crown porosity measurements in traditional olive trees, making it possible to discern between different pruning treatments. MDPI 2016-05-19 /pmc/articles/PMC4883414/ /pubmed/27213391 http://dx.doi.org/10.3390/s16050723 Text en © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Castillo-Ruiz, Francisco J. Castro-Garcia, Sergio Blanco-Roldan, Gregorio L. Sola-Guirado, Rafael R. Gil-Ribes, Jesus A. Olive Crown Porosity Measurement Based on Radiation Transmittance: An Assessment of Pruning Effect |
title | Olive Crown Porosity Measurement Based on Radiation Transmittance: An Assessment of Pruning Effect |
title_full | Olive Crown Porosity Measurement Based on Radiation Transmittance: An Assessment of Pruning Effect |
title_fullStr | Olive Crown Porosity Measurement Based on Radiation Transmittance: An Assessment of Pruning Effect |
title_full_unstemmed | Olive Crown Porosity Measurement Based on Radiation Transmittance: An Assessment of Pruning Effect |
title_short | Olive Crown Porosity Measurement Based on Radiation Transmittance: An Assessment of Pruning Effect |
title_sort | olive crown porosity measurement based on radiation transmittance: an assessment of pruning effect |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4883414/ https://www.ncbi.nlm.nih.gov/pubmed/27213391 http://dx.doi.org/10.3390/s16050723 |
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