Effect of irrigation and tree density on vegetative growth, oil yield and water use efficiency in young olive orchard under arid conditions in Mendoza, Argentina
We measured the effects of planting density (238, 317 and 476 trees ha−1), irrigation (fully irrigated control vs. deficit irrigation) and their interaction on the vegetative growth, yield and irrigation water use efficiency (IWUE) of young olive trees during three seasons. In the water deficit trea...
| Autores principales: | , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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2018
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/2856 https://link.springer.com/article/10.1007/s00271-015-0479-z https://doi.org/10.1007/s00271-015-0479-z |
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| author | Trentacoste, Eduardo Rafael Puertas, Carlos Marcelo Sadras, Victor Oscar |
| author_browse | Puertas, Carlos Marcelo Sadras, Victor Oscar Trentacoste, Eduardo Rafael |
| author_facet | Trentacoste, Eduardo Rafael Puertas, Carlos Marcelo Sadras, Victor Oscar |
| author_sort | Trentacoste, Eduardo Rafael |
| collection | INTA Digital |
| description | We measured the effects of planting density (238, 317 and 476 trees ha−1), irrigation (fully irrigated control vs. deficit irrigation) and their interaction on the vegetative growth, yield and irrigation water use efficiency (IWUE) of young olive trees during three seasons. In the water deficit treatment, irrigation was applied when midday stem water potential (SWP) dropped below −2.5 MPa; SWP of controls was maintained between −1.2 and −1.5 MPa. Across irrigation treatments, oil yield at high density (968 kg ha−1) was 70 % higher than at low density. Reduction in oil yield due to deficit irrigation was not significant compared to control (501 vs. 664 kg ha−1). IWUE at lower tree density averaged 1.5 kg ha−1 mm−1, increased by 50 % in intermediate density and by 57 % at the highest density. Deficit irrigation increased IWUE twofold with respect to controls. IWUE responded to the interaction density × irrigation whereby the highest IWUE (4.6 kg ha−1 mm−1) was obtained at highest density and deficit irrigation. IWUE was nonlinearly related to seasonal water stress integral ( Sψ ), where maximum efficiency corresponded to 180 MPa days. The negative correlation between fruit water concentration and Sψ highlights the potential benefit of deficit irrigation of increasing oil extractability. The positive outcomes of increasing the density (higher oil yield) and deficit irrigation (higher IWUE, lower water concentration in fruit) need to be weighed against the long-term effect on vegetative growth. Under our conditions, three seasons of water deficit reduced crown and trunk size by 35 % in relation to fully irrigated. |
| format | Artículo |
| id | INTA2856 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA28562024-10-04T09:43:29Z Effect of irrigation and tree density on vegetative growth, oil yield and water use efficiency in young olive orchard under arid conditions in Mendoza, Argentina Trentacoste, Eduardo Rafael Puertas, Carlos Marcelo Sadras, Victor Oscar Olea Europaea Huerto Frutal Riego Espaciamiento Aceites Rendimiento Eficacia en el Uso del Agua Orchards Irrigation Spacing Oils Yields Water Use Efficiency Mendoza Olivo Densidad de Plantación We measured the effects of planting density (238, 317 and 476 trees ha−1), irrigation (fully irrigated control vs. deficit irrigation) and their interaction on the vegetative growth, yield and irrigation water use efficiency (IWUE) of young olive trees during three seasons. In the water deficit treatment, irrigation was applied when midday stem water potential (SWP) dropped below −2.5 MPa; SWP of controls was maintained between −1.2 and −1.5 MPa. Across irrigation treatments, oil yield at high density (968 kg ha−1) was 70 % higher than at low density. Reduction in oil yield due to deficit irrigation was not significant compared to control (501 vs. 664 kg ha−1). IWUE at lower tree density averaged 1.5 kg ha−1 mm−1, increased by 50 % in intermediate density and by 57 % at the highest density. Deficit irrigation increased IWUE twofold with respect to controls. IWUE responded to the interaction density × irrigation whereby the highest IWUE (4.6 kg ha−1 mm−1) was obtained at highest density and deficit irrigation. IWUE was nonlinearly related to seasonal water stress integral ( Sψ ), where maximum efficiency corresponded to 180 MPa days. The negative correlation between fruit water concentration and Sψ highlights the potential benefit of deficit irrigation of increasing oil extractability. The positive outcomes of increasing the density (higher oil yield) and deficit irrigation (higher IWUE, lower water concentration in fruit) need to be weighed against the long-term effect on vegetative growth. Under our conditions, three seasons of water deficit reduced crown and trunk size by 35 % in relation to fully irrigated. EEA Junín Fil: Trentacoste, Eduardo Rafael. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina Fil: Puertas, Carlos Marcelo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina Fil: Sadras, Victor Oscar. South Australian Research & Development Institute; Australia 2018-07-23T15:32:24Z 2018-07-23T15:32:24Z 2015-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2856 https://link.springer.com/article/10.1007/s00271-015-0479-z 0342-7188 1432-1319 https://doi.org/10.1007/s00271-015-0479-z eng info:eu-repo/semantics/restrictedAccess application/pdf Irrigation Science 33 (6) : 429–440 (November 2015) |
| spellingShingle | Olea Europaea Huerto Frutal Riego Espaciamiento Aceites Rendimiento Eficacia en el Uso del Agua Orchards Irrigation Spacing Oils Yields Water Use Efficiency Mendoza Olivo Densidad de Plantación Trentacoste, Eduardo Rafael Puertas, Carlos Marcelo Sadras, Victor Oscar Effect of irrigation and tree density on vegetative growth, oil yield and water use efficiency in young olive orchard under arid conditions in Mendoza, Argentina |
| title | Effect of irrigation and tree density on vegetative growth, oil yield and water use efficiency in young olive orchard under arid conditions in Mendoza, Argentina |
| title_full | Effect of irrigation and tree density on vegetative growth, oil yield and water use efficiency in young olive orchard under arid conditions in Mendoza, Argentina |
| title_fullStr | Effect of irrigation and tree density on vegetative growth, oil yield and water use efficiency in young olive orchard under arid conditions in Mendoza, Argentina |
| title_full_unstemmed | Effect of irrigation and tree density on vegetative growth, oil yield and water use efficiency in young olive orchard under arid conditions in Mendoza, Argentina |
| title_short | Effect of irrigation and tree density on vegetative growth, oil yield and water use efficiency in young olive orchard under arid conditions in Mendoza, Argentina |
| title_sort | effect of irrigation and tree density on vegetative growth oil yield and water use efficiency in young olive orchard under arid conditions in mendoza argentina |
| topic | Olea Europaea Huerto Frutal Riego Espaciamiento Aceites Rendimiento Eficacia en el Uso del Agua Orchards Irrigation Spacing Oils Yields Water Use Efficiency Mendoza Olivo Densidad de Plantación |
| url | http://hdl.handle.net/20.500.12123/2856 https://link.springer.com/article/10.1007/s00271-015-0479-z https://doi.org/10.1007/s00271-015-0479-z |
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