Managing Water Stress in Olive (<i>Olea europaea</i> L.) Orchards Using Reference Equations for Midday Stem Water Potential
The irrigation surface of olive orchards has increased over recent decades. In zones affected, deficit irrigation scheduling is a must. The aim of this work was to study water stress management based on reference equations for midday stem water potential. An experiment was conducted over three seaso...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Horticulturae |
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| Online Access: | https://www.mdpi.com/2311-7524/9/5/563 |
| _version_ | 1797599902224613376 |
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| author | Marta Sánchez-Piñero Mireia Corell Alfonso Moriana Pedro Castro-Valdecantos María-José Martin-Palomo |
| author_facet | Marta Sánchez-Piñero Mireia Corell Alfonso Moriana Pedro Castro-Valdecantos María-José Martin-Palomo |
| author_sort | Marta Sánchez-Piñero |
| collection | DOAJ |
| description | The irrigation surface of olive orchards has increased over recent decades. In zones affected, deficit irrigation scheduling is a must. The aim of this work was to study water stress management based on reference equations for midday stem water potential. An experiment was conducted over three seasons in Seville (Spain) from 2020 to 2022. A young hedgerow olive orchard (cv Manzanilla de Sevilla) was irrigated using three different treatments: Control (full irrigated), RDI, and Rainfed, in a completely randomized design (six replications). The midday stem water potential and leaf conductance were measured throughout the three seasons. Stem water potential was more sensitive to water stress than leaf conductance and showed a clearer impact and rehydration. Individual data of stem water potential were grouped according to leaf conductance reduction. The relationship of these stem water potentials and temperature or vapor pressure deficit was significant, linear, and aligned to published baselines. Scattering in these equations increased when the leaf conductance reduction was greater. These reference equations would be useful to define moderate water stress conditions in the most sensitive processes, such as vegetative or fruit growth. Definition of severe water stress conditions would be better established with constant values. |
| first_indexed | 2024-03-11T03:41:53Z |
| format | Article |
| id | doaj.art-bef10f2ee9104b0083cf357cb1142e1e |
| institution | Directory Open Access Journal |
| issn | 2311-7524 |
| language | English |
| last_indexed | 2024-03-11T03:41:53Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Horticulturae |
| spelling | doaj.art-bef10f2ee9104b0083cf357cb1142e1e2023-11-18T01:34:40ZengMDPI AGHorticulturae2311-75242023-05-019556310.3390/horticulturae9050563Managing Water Stress in Olive (<i>Olea europaea</i> L.) Orchards Using Reference Equations for Midday Stem Water PotentialMarta Sánchez-Piñero0Mireia Corell1Alfonso Moriana2Pedro Castro-Valdecantos3María-José Martin-Palomo4Dpto de Agronomía, ETSIA, University of Seville, Crta de Utrera Km 1, 41013 Seville, SpainDpto de Agronomía, ETSIA, University of Seville, Crta de Utrera Km 1, 41013 Seville, SpainDpto de Agronomía, ETSIA, University of Seville, Crta de Utrera Km 1, 41013 Seville, SpainDpto de Agronomía, ETSIA, University of Seville, Crta de Utrera Km 1, 41013 Seville, SpainDpto de Agronomía, ETSIA, University of Seville, Crta de Utrera Km 1, 41013 Seville, SpainThe irrigation surface of olive orchards has increased over recent decades. In zones affected, deficit irrigation scheduling is a must. The aim of this work was to study water stress management based on reference equations for midday stem water potential. An experiment was conducted over three seasons in Seville (Spain) from 2020 to 2022. A young hedgerow olive orchard (cv Manzanilla de Sevilla) was irrigated using three different treatments: Control (full irrigated), RDI, and Rainfed, in a completely randomized design (six replications). The midday stem water potential and leaf conductance were measured throughout the three seasons. Stem water potential was more sensitive to water stress than leaf conductance and showed a clearer impact and rehydration. Individual data of stem water potential were grouped according to leaf conductance reduction. The relationship of these stem water potentials and temperature or vapor pressure deficit was significant, linear, and aligned to published baselines. Scattering in these equations increased when the leaf conductance reduction was greater. These reference equations would be useful to define moderate water stress conditions in the most sensitive processes, such as vegetative or fruit growth. Definition of severe water stress conditions would be better established with constant values.https://www.mdpi.com/2311-7524/9/5/563leaf conductanceregulated deficit irrigationwater relations |
| spellingShingle | Marta Sánchez-Piñero Mireia Corell Alfonso Moriana Pedro Castro-Valdecantos María-José Martin-Palomo Managing Water Stress in Olive (<i>Olea europaea</i> L.) Orchards Using Reference Equations for Midday Stem Water Potential Horticulturae leaf conductance regulated deficit irrigation water relations |
| title | Managing Water Stress in Olive (<i>Olea europaea</i> L.) Orchards Using Reference Equations for Midday Stem Water Potential |
| title_full | Managing Water Stress in Olive (<i>Olea europaea</i> L.) Orchards Using Reference Equations for Midday Stem Water Potential |
| title_fullStr | Managing Water Stress in Olive (<i>Olea europaea</i> L.) Orchards Using Reference Equations for Midday Stem Water Potential |
| title_full_unstemmed | Managing Water Stress in Olive (<i>Olea europaea</i> L.) Orchards Using Reference Equations for Midday Stem Water Potential |
| title_short | Managing Water Stress in Olive (<i>Olea europaea</i> L.) Orchards Using Reference Equations for Midday Stem Water Potential |
| title_sort | managing water stress in olive i olea europaea i l orchards using reference equations for midday stem water potential |
| topic | leaf conductance regulated deficit irrigation water relations |
| url | https://www.mdpi.com/2311-7524/9/5/563 |
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