The Impact of Irrigation on Olive Fruit Yield and Oil Quality in a Humid Climate
The expansion of olive orchards into regions with no tradition of olive production and humid climates, such as Uruguay, with more than 1200 mm of annual rainfall, calls into question the need for irrigation. In these regions, however, years with water deficit during summers are quite common. The vap...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/2/313 |
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| author | Paula Conde-Innamorato Claudio García Juan José Villamil Facundo Ibáñez Roberto Zoppolo Mercedes Arias-Sibillotte Inés Ponce De León Omar Borsani Georgina Paula García-Inza |
| author_facet | Paula Conde-Innamorato Claudio García Juan José Villamil Facundo Ibáñez Roberto Zoppolo Mercedes Arias-Sibillotte Inés Ponce De León Omar Borsani Georgina Paula García-Inza |
| author_sort | Paula Conde-Innamorato |
| collection | DOAJ |
| description | The expansion of olive orchards into regions with no tradition of olive production and humid climates, such as Uruguay, with more than 1200 mm of annual rainfall, calls into question the need for irrigation. In these regions, however, years with water deficit during summers are quite common. The vapor pressure deficit during summer is lower than in countries with a Mediterranean climate. The high variability in interannual water availability in the current context of climate change, with a growing tendency for extreme events to occur, emphasizes the need to evaluate the production response of olive trees to irrigation. To achieve this, three irrigation treatments were applied to Arbequina and Frantoio cultivars according to the value of the maximum crop evapotranspiration: a first treatment applying 100% ETc, corresponding to being fully irrigated; a second treatment applying 50% ETc; and a third treatment in which neither irrigation nor rain inputs occurred from the end of the pit hardening period until harvest. Results show the possibility of an increasing fruit weight and pulp/pit ratio through irrigation in the local environmental conditions. The oil content in response to irrigation was different within cultivars. Water restriction conditions did not affect the oil content of olives in Arbequina, while in Frantoio it increased it. Polyphenols in fruit increased under water stress for both cultivars. The technological applicability of the results obtained must be accompanied by an economic analysis. The results obtained highlight the need for better use of irrigation water during the growth and ripening phase of the olive fruit under a humid climate. |
| first_indexed | 2024-03-09T22:51:23Z |
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| id | doaj.art-7c14d463cde94b39be8736ca19eaf161 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T22:51:23Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-7c14d463cde94b39be8736ca19eaf1612023-11-23T18:19:50ZengMDPI AGAgronomy2073-43952022-01-0112231310.3390/agronomy12020313The Impact of Irrigation on Olive Fruit Yield and Oil Quality in a Humid ClimatePaula Conde-Innamorato0Claudio García1Juan José Villamil2Facundo Ibáñez3Roberto Zoppolo4Mercedes Arias-Sibillotte5Inés Ponce De León6Omar Borsani7Georgina Paula García-Inza8Estación Experimental INIA Las Brujas, Programa Nacional de Investigación en Producción Frutícola, Instituto Nacional de Investigación Agropecuaria (INIA), Canelones 90200, UruguayEstación Experimental INIA Las Brujas, Programa Nacional de Investigación en Producción Frutícola, Instituto Nacional de Investigación Agropecuaria (INIA), Canelones 90200, UruguayEstación Experimental INIA Las Brujas, Programa Nacional de Investigación en Producción Frutícola, Instituto Nacional de Investigación Agropecuaria (INIA), Canelones 90200, UruguayEstación Experimental INIA Las Brujas, Programa Nacional de Investigación en Producción Frutícola, Instituto Nacional de Investigación Agropecuaria (INIA), Canelones 90200, UruguayEstación Experimental INIA Las Brujas, Programa Nacional de Investigación en Producción Frutícola, Instituto Nacional de Investigación Agropecuaria (INIA), Canelones 90200, UruguayUnidad de Ecofisiología de Frutales, Departamento de Producción Vegetal, Facultad de Agronomía, Universidad de la República (UDELAR), Garzón 780, Montevideo 12900, UruguayDepartamento de Biología Molecular, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo 11600, UruguayLaboratorio de Bioquímica, Departamento de Biología Vegetal, Facultad de Agronomía, Universidad de la República, Montevideo 12900, UruguayEstación Experimental INIA Las Brujas, Programa Nacional de Investigación en Producción Frutícola, Instituto Nacional de Investigación Agropecuaria (INIA), Canelones 90200, UruguayThe expansion of olive orchards into regions with no tradition of olive production and humid climates, such as Uruguay, with more than 1200 mm of annual rainfall, calls into question the need for irrigation. In these regions, however, years with water deficit during summers are quite common. The vapor pressure deficit during summer is lower than in countries with a Mediterranean climate. The high variability in interannual water availability in the current context of climate change, with a growing tendency for extreme events to occur, emphasizes the need to evaluate the production response of olive trees to irrigation. To achieve this, three irrigation treatments were applied to Arbequina and Frantoio cultivars according to the value of the maximum crop evapotranspiration: a first treatment applying 100% ETc, corresponding to being fully irrigated; a second treatment applying 50% ETc; and a third treatment in which neither irrigation nor rain inputs occurred from the end of the pit hardening period until harvest. Results show the possibility of an increasing fruit weight and pulp/pit ratio through irrigation in the local environmental conditions. The oil content in response to irrigation was different within cultivars. Water restriction conditions did not affect the oil content of olives in Arbequina, while in Frantoio it increased it. Polyphenols in fruit increased under water stress for both cultivars. The technological applicability of the results obtained must be accompanied by an economic analysis. The results obtained highlight the need for better use of irrigation water during the growth and ripening phase of the olive fruit under a humid climate.https://www.mdpi.com/2073-4395/12/2/313<i>Olea europaea</i> L.drought stressstem water potentialfruit growthoil contentpolyphenols |
| spellingShingle | Paula Conde-Innamorato Claudio García Juan José Villamil Facundo Ibáñez Roberto Zoppolo Mercedes Arias-Sibillotte Inés Ponce De León Omar Borsani Georgina Paula García-Inza The Impact of Irrigation on Olive Fruit Yield and Oil Quality in a Humid Climate Agronomy <i>Olea europaea</i> L. drought stress stem water potential fruit growth oil content polyphenols |
| title | The Impact of Irrigation on Olive Fruit Yield and Oil Quality in a Humid Climate |
| title_full | The Impact of Irrigation on Olive Fruit Yield and Oil Quality in a Humid Climate |
| title_fullStr | The Impact of Irrigation on Olive Fruit Yield and Oil Quality in a Humid Climate |
| title_full_unstemmed | The Impact of Irrigation on Olive Fruit Yield and Oil Quality in a Humid Climate |
| title_short | The Impact of Irrigation on Olive Fruit Yield and Oil Quality in a Humid Climate |
| title_sort | impact of irrigation on olive fruit yield and oil quality in a humid climate |
| topic | <i>Olea europaea</i> L. drought stress stem water potential fruit growth oil content polyphenols |
| url | https://www.mdpi.com/2073-4395/12/2/313 |
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