Vegetative growth, yield, and crop water productivity response to different irrigation regimes in high density walnut orchards (Juglans regia L.) in a semi-arid environment in Argentina
The area dedicated to walnut orchards has recently expanded in central-western Argentina. Nevertheless, studies on crop water demand are scarce and fundamental in semi-arid environments. This work aims to evaluate the effects on stem water potential (SWP) and stomatal conductance (gs), vegetative gr...
| Autores principales: | , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Elsevier
2022
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/13351 https://www.sciencedirect.com/science/article/abs/pii/S0378377422005169 https://doi.org/10.1016/j.agwat.2022.107969 |
| _version_ | 1855485153837580288 |
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| author | Calvo, Franco Emmanuel Trentacoste, Eduardo Rafael Silvente, Sonia Teresa |
| author_browse | Calvo, Franco Emmanuel Silvente, Sonia Teresa Trentacoste, Eduardo Rafael |
| author_facet | Calvo, Franco Emmanuel Trentacoste, Eduardo Rafael Silvente, Sonia Teresa |
| author_sort | Calvo, Franco Emmanuel |
| collection | INTA Digital |
| description | The area dedicated to walnut orchards has recently expanded in central-western Argentina. Nevertheless, studies on crop water demand are scarce and fundamental in semi-arid environments. This work aims to evaluate the effects on stem water potential (SWP) and stomatal conductance (gs), vegetative growth (trunk cross-sectional area, canopy volume, and canopy porosity), and water productivity in terms of yield of four water irrigation regimes T50, T75, T100, and T125. The plants were irrigated at 50%, 75%, 100%, and 125%, of crop evapotranspiration, respectively over two consecutive seasons (2018–2019 and 2019–2020). The experiment was carried out in a young walnut orchard cv. Chandler in a semiarid environment in La Rioja province, Argentina. SWP and gs had similar seasonal behavior in both seasons. T100 SWP remained between 0.5 and 0.8 MPa, like T75, while T50 reached minimum values of − 1.0 MPa. Stomatal conductance was less responsive than SWP to water deficit, showing significant differences only at 100 days after bloom. Vegetative growth and yield components did not differ among treatments. Compared to T100 and T50, crop water productivity (CWP) increased from 4.30 to 5.29 dry yield mm−1 ha−1 in 2018–2019 and from 5.25 to 7.28 kg dry yield mm−1 ha−1 in 2019–2020; while T75 CWP did not differ from the CWP of T100. Irrigation doses greater than crop requirements (T125) have no effect on yield if compared with T100, and in terms of the water productivity function, irrigation at 90% of T100 would have allowed for maximum productivity in both seasons. |
| format | Artículo |
| id | INTA13351 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA133512022-11-08T19:36:13Z Vegetative growth, yield, and crop water productivity response to different irrigation regimes in high density walnut orchards (Juglans regia L.) in a semi-arid environment in Argentina Calvo, Franco Emmanuel Trentacoste, Eduardo Rafael Silvente, Sonia Teresa Juglans regia Medio Ambiente Zona Semiárida Rendimiento Riego Productividad Argentina Environment Semiarid Zones Yields Irrigation Productivity Nogal The area dedicated to walnut orchards has recently expanded in central-western Argentina. Nevertheless, studies on crop water demand are scarce and fundamental in semi-arid environments. This work aims to evaluate the effects on stem water potential (SWP) and stomatal conductance (gs), vegetative growth (trunk cross-sectional area, canopy volume, and canopy porosity), and water productivity in terms of yield of four water irrigation regimes T50, T75, T100, and T125. The plants were irrigated at 50%, 75%, 100%, and 125%, of crop evapotranspiration, respectively over two consecutive seasons (2018–2019 and 2019–2020). The experiment was carried out in a young walnut orchard cv. Chandler in a semiarid environment in La Rioja province, Argentina. SWP and gs had similar seasonal behavior in both seasons. T100 SWP remained between 0.5 and 0.8 MPa, like T75, while T50 reached minimum values of − 1.0 MPa. Stomatal conductance was less responsive than SWP to water deficit, showing significant differences only at 100 days after bloom. Vegetative growth and yield components did not differ among treatments. Compared to T100 and T50, crop water productivity (CWP) increased from 4.30 to 5.29 dry yield mm−1 ha−1 in 2018–2019 and from 5.25 to 7.28 kg dry yield mm−1 ha−1 in 2019–2020; while T75 CWP did not differ from the CWP of T100. Irrigation doses greater than crop requirements (T125) have no effect on yield if compared with T100, and in terms of the water productivity function, irrigation at 90% of T100 would have allowed for maximum productivity in both seasons. EEA La Consulta Fil: Calvo, Franco E. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Calvo, Franco E. Universidad Nacional de Chilecito. Instituto de Agricultura Sostenible en el Oasis; Argentina Fil: Trentacoste, Eduardo Rafael. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Consulta; Argentina Fil: Silvente, Sonia. Universidad Nacional de Chilecito. Instituto de Ambiente de Montaña y Regiones Áridas (IAMRA); Argentina 2022-11-08T19:33:53Z 2022-11-08T19:33:53Z 2022-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/13351 https://www.sciencedirect.com/science/article/abs/pii/S0378377422005169 0378-3774 https://doi.org/10.1016/j.agwat.2022.107969 eng info:eu-repo/semantics/restrictedAccess application/pdf Argentina .......... (nation) (World, South America) 7006477 Elsevier Agricultural Water Management 274 : 107969 (December 2022) |
| spellingShingle | Juglans regia Medio Ambiente Zona Semiárida Rendimiento Riego Productividad Argentina Environment Semiarid Zones Yields Irrigation Productivity Nogal Calvo, Franco Emmanuel Trentacoste, Eduardo Rafael Silvente, Sonia Teresa Vegetative growth, yield, and crop water productivity response to different irrigation regimes in high density walnut orchards (Juglans regia L.) in a semi-arid environment in Argentina |
| title | Vegetative growth, yield, and crop water productivity response to different irrigation regimes in high density walnut orchards (Juglans regia L.) in a semi-arid environment in Argentina |
| title_full | Vegetative growth, yield, and crop water productivity response to different irrigation regimes in high density walnut orchards (Juglans regia L.) in a semi-arid environment in Argentina |
| title_fullStr | Vegetative growth, yield, and crop water productivity response to different irrigation regimes in high density walnut orchards (Juglans regia L.) in a semi-arid environment in Argentina |
| title_full_unstemmed | Vegetative growth, yield, and crop water productivity response to different irrigation regimes in high density walnut orchards (Juglans regia L.) in a semi-arid environment in Argentina |
| title_short | Vegetative growth, yield, and crop water productivity response to different irrigation regimes in high density walnut orchards (Juglans regia L.) in a semi-arid environment in Argentina |
| title_sort | vegetative growth yield and crop water productivity response to different irrigation regimes in high density walnut orchards juglans regia l in a semi arid environment in argentina |
| topic | Juglans regia Medio Ambiente Zona Semiárida Rendimiento Riego Productividad Argentina Environment Semiarid Zones Yields Irrigation Productivity Nogal |
| url | http://hdl.handle.net/20.500.12123/13351 https://www.sciencedirect.com/science/article/abs/pii/S0378377422005169 https://doi.org/10.1016/j.agwat.2022.107969 |
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