Relationship between hydraulic conductance and citrus dwarfing by the Flying Dragon rootstock (Poncirus trifoliata L. Raft var. monstruosa)
This work studied the hydraulic characteristics and physiological behavior of two trifoliate orange (Poncirus trifoliata L. Raft) varieties-Flying Dragon (FD) and Rubidoux (RT)-with contrasting size-controlling potential when used as rootstocks for citrus trees. Thus, Valencia orange scions growing...
| Autores principales: | , , , , , |
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| Formato: | article |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Acceso en línea: | http://hdl.handle.net/20.500.11939/5590 |
| _version_ | 1855032303023030272 |
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| author | Martínez-Alcántara, Belén Rodriguez-Gamir, Juan Martínez-Cuenca, Mary-Rus Iglesias, Domingo J. Primo-Millo, Eduardo Forner-Giner, María A. |
| author_browse | Forner-Giner, María A. Iglesias, Domingo J. Martínez-Alcántara, Belén Martínez-Cuenca, Mary-Rus Primo-Millo, Eduardo Rodriguez-Gamir, Juan |
| author_facet | Martínez-Alcántara, Belén Rodriguez-Gamir, Juan Martínez-Cuenca, Mary-Rus Iglesias, Domingo J. Primo-Millo, Eduardo Forner-Giner, María A. |
| author_sort | Martínez-Alcántara, Belén |
| collection | ReDivia |
| description | This work studied the hydraulic characteristics and physiological behavior of two trifoliate orange (Poncirus trifoliata L. Raft) varieties-Flying Dragon (FD) and Rubidoux (RT)-with contrasting size-controlling potential when used as rootstocks for citrus trees. Thus, Valencia orange scions growing on RT root system develop about 40 % more biomass than scions on FD. The anatomical study of xylem root tissue of both rootstocks showed that the number of vessels per cross-sectional area in RT almost doubled that found in FD, whereas diameter distribution did not vary significantly. Hydraulic resistance determined in rootstocks, and bud union segments were, respectively, 2- and 3.4-fold higher in trees on FD than in trees on RT. Root systems accounted for 46.5 and 55.2 % of whole-plant hydraulic resistance, whereas bud union segments represented 7.5 and 14.6 % of this parameter, the dwarfing rootstock (FD) having the highest values. Reduced hydraulic conductance in plants on FD rootstock diminished water potential in high evaporative demand periods, causing a reduction in stomatal conductance with respect to plants on RT. This leads to lower net photosynthetic CO2 assimilation, which may affect biomass production. Translocation of C-13-labeled photoassimilates from leaves to roots was lower in plants on FD than in plants on RT, indicating that in the dwarfing rootstock (FD) there may be a vascular resistance to sucrose transport at the budding union level. Findings show that reduced hydraulic conductance may be the main cause of rootstock-induced dwarfing in citrus grafted onto FD. |
| format | article |
| id | ReDivia5590 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | ReDivia55902025-04-25T14:43:22Z Relationship between hydraulic conductance and citrus dwarfing by the Flying Dragon rootstock (Poncirus trifoliata L. Raft var. monstruosa) Martínez-Alcántara, Belén Rodriguez-Gamir, Juan Martínez-Cuenca, Mary-Rus Iglesias, Domingo J. Primo-Millo, Eduardo Forner-Giner, María A. This work studied the hydraulic characteristics and physiological behavior of two trifoliate orange (Poncirus trifoliata L. Raft) varieties-Flying Dragon (FD) and Rubidoux (RT)-with contrasting size-controlling potential when used as rootstocks for citrus trees. Thus, Valencia orange scions growing on RT root system develop about 40 % more biomass than scions on FD. The anatomical study of xylem root tissue of both rootstocks showed that the number of vessels per cross-sectional area in RT almost doubled that found in FD, whereas diameter distribution did not vary significantly. Hydraulic resistance determined in rootstocks, and bud union segments were, respectively, 2- and 3.4-fold higher in trees on FD than in trees on RT. Root systems accounted for 46.5 and 55.2 % of whole-plant hydraulic resistance, whereas bud union segments represented 7.5 and 14.6 % of this parameter, the dwarfing rootstock (FD) having the highest values. Reduced hydraulic conductance in plants on FD rootstock diminished water potential in high evaporative demand periods, causing a reduction in stomatal conductance with respect to plants on RT. This leads to lower net photosynthetic CO2 assimilation, which may affect biomass production. Translocation of C-13-labeled photoassimilates from leaves to roots was lower in plants on FD than in plants on RT, indicating that in the dwarfing rootstock (FD) there may be a vascular resistance to sucrose transport at the budding union level. Findings show that reduced hydraulic conductance may be the main cause of rootstock-induced dwarfing in citrus grafted onto FD. 2017-06-01T10:12:37Z 2017-06-01T10:12:37Z 2013 JUN 2013 article Martínez-Alcántara, B., Rodriguez-Gamir, J., Martinez-Cuenca, M.R., Iglesias, D. J., Primo-Millo, E., Forner-Giner, María A. (2013). Relationship between hydraulic conductance and citrus dwarfing by the Flying Dragon rootstock (Poncirus trifoliata L. Raft var. monstruosa). Trees-Structure and Function, 27(3), 629-638. 0931-1890 http://hdl.handle.net/20.500.11939/5590 10.1007/s00468-012-0817-1 en openAccess Impreso |
| spellingShingle | Martínez-Alcántara, Belén Rodriguez-Gamir, Juan Martínez-Cuenca, Mary-Rus Iglesias, Domingo J. Primo-Millo, Eduardo Forner-Giner, María A. Relationship between hydraulic conductance and citrus dwarfing by the Flying Dragon rootstock (Poncirus trifoliata L. Raft var. monstruosa) |
| title | Relationship between hydraulic conductance and citrus dwarfing by the Flying Dragon rootstock (Poncirus trifoliata L. Raft var. monstruosa) |
| title_full | Relationship between hydraulic conductance and citrus dwarfing by the Flying Dragon rootstock (Poncirus trifoliata L. Raft var. monstruosa) |
| title_fullStr | Relationship between hydraulic conductance and citrus dwarfing by the Flying Dragon rootstock (Poncirus trifoliata L. Raft var. monstruosa) |
| title_full_unstemmed | Relationship between hydraulic conductance and citrus dwarfing by the Flying Dragon rootstock (Poncirus trifoliata L. Raft var. monstruosa) |
| title_short | Relationship between hydraulic conductance and citrus dwarfing by the Flying Dragon rootstock (Poncirus trifoliata L. Raft var. monstruosa) |
| title_sort | relationship between hydraulic conductance and citrus dwarfing by the flying dragon rootstock poncirus trifoliata l raft var monstruosa |
| url | http://hdl.handle.net/20.500.11939/5590 |
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