Effects of the source:sink ratio on the phenotypic plasticity of stem water potential in olive (Olea europaea L.)
The aims of this work were to quantify (i) the effect of the source:sink ratio on stem water potential (SWP) and (ii) the phenotypic plasticity of SWP and its relationship to oil yield components in olive. Trees with a 3-fold variation in the source:sink ratio (crown volume/fruit number per tree) we...
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| Format: | Artículo |
| Language: | Inglés |
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Society for Experimental Biology
2020
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/7450 https://academic.oup.com/jxb/article/62/10/3535/481553 https://doi.org/10.1093/jxb/err044 |
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| author | Trentacoste, Eduardo Rafael Sadras, Victor Oscar Puertas, Carlos Marcelo |
| author_browse | Puertas, Carlos Marcelo Sadras, Victor Oscar Trentacoste, Eduardo Rafael |
| author_facet | Trentacoste, Eduardo Rafael Sadras, Victor Oscar Puertas, Carlos Marcelo |
| author_sort | Trentacoste, Eduardo Rafael |
| collection | INTA Digital |
| description | The aims of this work were to quantify (i) the effect of the source:sink ratio on stem water potential (SWP) and (ii) the phenotypic plasticity of SWP and its relationship to oil yield components in olive. Trees with a 3-fold variation in the source:sink ratio (crown volume/fruit number per tree) were monitored in 2007–2008 and 2008–2009 in a fully irrigated orchard in Mendoza, Argentina. The combination of rainfall, irrigation, and evaporative demand led to a steady SWP largely above –1.65 MPa in 2007–2008 and a marked seasonal decline from –1.13 MPa to –2.04 MPa in trees with a medium and low source:sink ratio in 2008–2009. Plasticity was quantified as the slope of the norm of reaction for each trait. Across seasons, trees with a high source:sink ratio had a higher SWP than their counterparts with a medium and low source:sink ratio. Plasticity of SWP was highest in olives with a low source:sink ratio (slope=1.28) and lowest for trees with a high source:sink ratio (slope=0.76). The average SWP for each source:sink ratio and season was unrelated to both the source:sink ratio and yield components. On the other hand, the plasticity of SWP was positively associated with fruit number and negatively associated with the source:sink ratio, fruit weight, and fruit oil weight. The plasticity of the SWP was unrelated to SWP per se. It is concluded that understanding the effect of the source:sink ratio on plant water relations would benefit from a dual perspective considering the trait per se and its plasticity. A dual approach would also allow for more robust plant-based indicators for irrigation. |
| format | Artículo |
| id | INTA7450 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Society for Experimental Biology |
| publisherStr | Society for Experimental Biology |
| record_format | dspace |
| spelling | INTA74502020-06-22T13:33:44Z Effects of the source:sink ratio on the phenotypic plasticity of stem water potential in olive (Olea europaea L.) Trentacoste, Eduardo Rafael Sadras, Victor Oscar Puertas, Carlos Marcelo Olea europaea Plasticidad Fenotípica Medio Ambiente Relaciones Planta Agua Rendimiento Phenotypic Plasticity Environment Plant Water Relations Yields Olivo Olive The aims of this work were to quantify (i) the effect of the source:sink ratio on stem water potential (SWP) and (ii) the phenotypic plasticity of SWP and its relationship to oil yield components in olive. Trees with a 3-fold variation in the source:sink ratio (crown volume/fruit number per tree) were monitored in 2007–2008 and 2008–2009 in a fully irrigated orchard in Mendoza, Argentina. The combination of rainfall, irrigation, and evaporative demand led to a steady SWP largely above –1.65 MPa in 2007–2008 and a marked seasonal decline from –1.13 MPa to –2.04 MPa in trees with a medium and low source:sink ratio in 2008–2009. Plasticity was quantified as the slope of the norm of reaction for each trait. Across seasons, trees with a high source:sink ratio had a higher SWP than their counterparts with a medium and low source:sink ratio. Plasticity of SWP was highest in olives with a low source:sink ratio (slope=1.28) and lowest for trees with a high source:sink ratio (slope=0.76). The average SWP for each source:sink ratio and season was unrelated to both the source:sink ratio and yield components. On the other hand, the plasticity of SWP was positively associated with fruit number and negatively associated with the source:sink ratio, fruit weight, and fruit oil weight. The plasticity of the SWP was unrelated to SWP per se. It is concluded that understanding the effect of the source:sink ratio on plant water relations would benefit from a dual perspective considering the trait per se and its plasticity. A dual approach would also allow for more robust plant-based indicators for irrigation. EEA Junín Fil: Trentacoste, Eduardo Rafael. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina Fil: Sadras, Victor Oscar. South Australian Research & Development Institute; Australia Fil: Puertas, Carlos Marcelo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Junín; Argentina 2020-06-22T13:30:50Z 2020-06-22T13:30:50Z 2011-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7450 https://academic.oup.com/jxb/article/62/10/3535/481553 0022-0957 1460-2431 https://doi.org/10.1093/jxb/err044 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Society for Experimental Biology Journal of Experimental Botany 62 (10) : 3535–3543. (June 2011) |
| spellingShingle | Olea europaea Plasticidad Fenotípica Medio Ambiente Relaciones Planta Agua Rendimiento Phenotypic Plasticity Environment Plant Water Relations Yields Olivo Olive Trentacoste, Eduardo Rafael Sadras, Victor Oscar Puertas, Carlos Marcelo Effects of the source:sink ratio on the phenotypic plasticity of stem water potential in olive (Olea europaea L.) |
| title | Effects of the source:sink ratio on the phenotypic plasticity of stem water potential in olive (Olea europaea L.) |
| title_full | Effects of the source:sink ratio on the phenotypic plasticity of stem water potential in olive (Olea europaea L.) |
| title_fullStr | Effects of the source:sink ratio on the phenotypic plasticity of stem water potential in olive (Olea europaea L.) |
| title_full_unstemmed | Effects of the source:sink ratio on the phenotypic plasticity of stem water potential in olive (Olea europaea L.) |
| title_short | Effects of the source:sink ratio on the phenotypic plasticity of stem water potential in olive (Olea europaea L.) |
| title_sort | effects of the source sink ratio on the phenotypic plasticity of stem water potential in olive olea europaea l |
| topic | Olea europaea Plasticidad Fenotípica Medio Ambiente Relaciones Planta Agua Rendimiento Phenotypic Plasticity Environment Plant Water Relations Yields Olivo Olive |
| url | http://hdl.handle.net/20.500.12123/7450 https://academic.oup.com/jxb/article/62/10/3535/481553 https://doi.org/10.1093/jxb/err044 |
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