Night-time sap flow is parabolically linked to midday water potential for field-grown almond trees
To quantify night-time (S n) and diurnal (S d) tree water uptake, two sets of sap flow sensors (heat-pulse compensated) were installed per tree in the north-east and south-west sides of the trunk in three trees per treatment. There were two treatments: (1) control, irrigated with 100 % ETc (T100), a...
| Main Authors: | , , , , |
|---|---|
| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
| Published: |
2018
|
| Subjects: | |
| Online Access: | https://link.springer.com/article/10.1007/s00271-013-0403-3 http://hdl.handle.net/20.500.12123/3311 https://doi.org/10.1007/s00271-013-0403-3 |
| _version_ | 1855035122097586176 |
|---|---|
| author | Fuentes, Sigfredo Mahadevan, M. Bonada, Marcos Skewes, Mark A. Cox, J.W. |
| author_browse | Bonada, Marcos Cox, J.W. Fuentes, Sigfredo Mahadevan, M. Skewes, Mark A. |
| author_facet | Fuentes, Sigfredo Mahadevan, M. Bonada, Marcos Skewes, Mark A. Cox, J.W. |
| author_sort | Fuentes, Sigfredo |
| collection | INTA Digital |
| description | To quantify night-time (S n) and diurnal (S d) tree water uptake, two sets of sap flow sensors (heat-pulse compensated) were installed per tree in the north-east and south-west sides of the trunk in three trees per treatment. There were two treatments: (1) control, irrigated with 100 % ETc (T100), and (2) deficit, irrigated at 60 % ETc (T60) with daily irrigations at the peak atmospheric demand (December–January). Normalised S n by trees was in the range of 15–25 % throughout the season, compared to normalised S d, for T100 and T60, respectively. Furthermore, S n was parabolically correlated to plant water status from the previous day, measured as midday stem water potential. We also found strong correlations between S n and nocturnal vapour pressure deficit for T100 and T60, indicating that nocturnal transpiration was significant for both treatments. Differences in S n were observed for the NE and SW sensors for T60, being significantly less for the NE side (sunny side) compared to the SW side (more shaded). No differences were observed for T100 regarding probe positioning. |
| format | info:ar-repo/semantics/artículo |
| id | INTA3311 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA33112018-09-07T15:10:54Z Night-time sap flow is parabolically linked to midday water potential for field-grown almond trees Fuentes, Sigfredo Mahadevan, M. Bonada, Marcos Skewes, Mark A. Cox, J.W. Prunus dulcis Almendra Traslocación Agua Crecimiento Almonds Translocation Water Growth Flujo de savia Noche Mediodía Almendro To quantify night-time (S n) and diurnal (S d) tree water uptake, two sets of sap flow sensors (heat-pulse compensated) were installed per tree in the north-east and south-west sides of the trunk in three trees per treatment. There were two treatments: (1) control, irrigated with 100 % ETc (T100), and (2) deficit, irrigated at 60 % ETc (T60) with daily irrigations at the peak atmospheric demand (December–January). Normalised S n by trees was in the range of 15–25 % throughout the season, compared to normalised S d, for T100 and T60, respectively. Furthermore, S n was parabolically correlated to plant water status from the previous day, measured as midday stem water potential. We also found strong correlations between S n and nocturnal vapour pressure deficit for T100 and T60, indicating that nocturnal transpiration was significant for both treatments. Differences in S n were observed for the NE and SW sensors for T60, being significantly less for the NE side (sunny side) compared to the SW side (more shaded). No differences were observed for T100 regarding probe positioning. EEA Mendoza Fil: Fuentes, Sigfredo. University of Melbourne. Melbourne School of Land and Environment; Australia Fil: Mahadevan, M. South Australian Research & Development Institute; Australia Fil: Bonada, Marcos. University of Melbourne. Melbourne School of Land and Environment; Australia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Mendoza; Argentina Fil: Skewes, Mark A. South Australian Research & Development Institute. Loxton Research Centre; Australia Fil: Cox, J.W. University of Melbourne. Melbourne School of Land and Environment; Australia 2018-09-07T15:09:38Z 2018-09-07T15:09:38Z 2013-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://link.springer.com/article/10.1007/s00271-013-0403-3 http://hdl.handle.net/20.500.12123/3311 0342-7188 1432-1319 https://doi.org/10.1007/s00271-013-0403-3 eng info:eu-repo/semantics/restrictedAccess application/pdf Irrigation Science 31 (6) : 1265–1276 (November 2013) |
| spellingShingle | Prunus dulcis Almendra Traslocación Agua Crecimiento Almonds Translocation Water Growth Flujo de savia Noche Mediodía Almendro Fuentes, Sigfredo Mahadevan, M. Bonada, Marcos Skewes, Mark A. Cox, J.W. Night-time sap flow is parabolically linked to midday water potential for field-grown almond trees |
| title | Night-time sap flow is parabolically linked to midday water potential for field-grown almond trees |
| title_full | Night-time sap flow is parabolically linked to midday water potential for field-grown almond trees |
| title_fullStr | Night-time sap flow is parabolically linked to midday water potential for field-grown almond trees |
| title_full_unstemmed | Night-time sap flow is parabolically linked to midday water potential for field-grown almond trees |
| title_short | Night-time sap flow is parabolically linked to midday water potential for field-grown almond trees |
| title_sort | night time sap flow is parabolically linked to midday water potential for field grown almond trees |
| topic | Prunus dulcis Almendra Traslocación Agua Crecimiento Almonds Translocation Water Growth Flujo de savia Noche Mediodía Almendro |
| url | https://link.springer.com/article/10.1007/s00271-013-0403-3 http://hdl.handle.net/20.500.12123/3311 https://doi.org/10.1007/s00271-013-0403-3 |
| work_keys_str_mv | AT fuentessigfredo nighttimesapflowisparabolicallylinkedtomiddaywaterpotentialforfieldgrownalmondtrees AT mahadevanm nighttimesapflowisparabolicallylinkedtomiddaywaterpotentialforfieldgrownalmondtrees AT bonadamarcos nighttimesapflowisparabolicallylinkedtomiddaywaterpotentialforfieldgrownalmondtrees AT skewesmarka nighttimesapflowisparabolicallylinkedtomiddaywaterpotentialforfieldgrownalmondtrees AT coxjw nighttimesapflowisparabolicallylinkedtomiddaywaterpotentialforfieldgrownalmondtrees |