Articles
Using UAV-LiDAR for comparing tree development of four olive cultivars under hedgerow planting system: irrigated vs. rainfed conditions
Article number
1425_48
Pages
375 – 380
Language
English
Abstract
The cultivation of olive under hedgerow growing system improves crop profitability by allowing earlier production and reducing costs through mechanized harvesting.
As a result, there has been a recent shift from traditional, low-density to high-density, hedgerow systems.
However, there is still limited information available on how different cultivars of olive trees behave under different water availability conditions, particularly in the context of climate change.
To address this issue, two comparative trials were conducted in Cabra (Córdoba) in 2020, one with deficit irrigation and the other under rainfed conditions, using the cultivars ‘Arbequina’, ‘Arbosana’, ‘Koroneiki’, and ‘Sikitita’ under hedgerow growing system.
The main objective was to evaluate and compare the vegetative and reproductive development of each cultivar to determine which cultivar is best adapted to irrigated and rainfed conditions in the environmental conditions of the trial.
Due to the limitations of traditional methods for measuring tree crowns and growth, such as time and labor, LiDAR (light detection and ranging) flights were conducted monthly from July 2022 to January 2023 using an unmanned aerial platform (UAV) to generate 3D models that characterized the structure of each cultivar.
This paper presents the results obtained from the characterization of the height and crown area of each cultivar in July 2022. A comparative study was subsequently conducted at three levels: 1) between the irrigated and rainfed blocks, 2) between cultivars according to block, and 3) within each cultivar in irrigation versus rainfed conditions.
As a result, there has been a recent shift from traditional, low-density to high-density, hedgerow systems.
However, there is still limited information available on how different cultivars of olive trees behave under different water availability conditions, particularly in the context of climate change.
To address this issue, two comparative trials were conducted in Cabra (Córdoba) in 2020, one with deficit irrigation and the other under rainfed conditions, using the cultivars ‘Arbequina’, ‘Arbosana’, ‘Koroneiki’, and ‘Sikitita’ under hedgerow growing system.
The main objective was to evaluate and compare the vegetative and reproductive development of each cultivar to determine which cultivar is best adapted to irrigated and rainfed conditions in the environmental conditions of the trial.
Due to the limitations of traditional methods for measuring tree crowns and growth, such as time and labor, LiDAR (light detection and ranging) flights were conducted monthly from July 2022 to January 2023 using an unmanned aerial platform (UAV) to generate 3D models that characterized the structure of each cultivar.
This paper presents the results obtained from the characterization of the height and crown area of each cultivar in July 2022. A comparative study was subsequently conducted at three levels: 1) between the irrigated and rainfed blocks, 2) between cultivars according to block, and 3) within each cultivar in irrigation versus rainfed conditions.
Authors
S. Cantón-Martínez, F.J. Mesas-Carrascosa, F. López-Granados, F. Pérez-Porras, L. León, R. de la Rosa, F.C. Páez, J. Torres-Sánchez
Keywords
remote sensing, 3D models, phenotyping, digitalization, Olea europaea
Groups involved
- Division Plant-Environment Interactions in Field Systems
- Division Precision Horticulture and Engineering
- Working Group Modelling in Fruit Research and Orchard Management
- Working Group Modelling Plant Growth, Environmental Control, Greenhouse Environment
- Division Greenhouse and Indoor Production Horticulture
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