Advanced search
1 file | 149.05 KB

Effect of stem age on the response of stem diameter variations to plant water status in tomato

(2012) Acta Horticulturae. 952. p.907-914
Author
Organization
Abstract
Plant water status plays a major role in glasshouse cultivation of tomato (Solanum lycopersicum L.). New climate control technologies alter the glasshouse climate and make it less dependent on solar radiation. However, irrigation strategies are still often based on solar radiation sums. In order to maintain a good plant water status, it is interesting to use plant-based methods such as monitoring sap flow (F) or stem diameter variations (SDV). Though SDV give important information about plant water status, an unambiguous interpretation might be difficult because other factors such as stem age, fruit load and sugar content of the stem also affect SDV. In this study, an analysis of the effect of stem age on the response of SDV to water status was performed by calibration of a mechanistic flow and storage model. This allowed us to determine how parameter values changed across the growing season. Tissue extensibility decreased over the growing season resulting in a lower growth rate potential, whereas daily cycles of shrinking and swelling of the stem became more pronounced towards the end of the growing season. Parameters were then adapted to time-dependent variables and implemented in the model, allowing long term simulation and interpretation of SDV. Sensitivity analysis showed that model predictions were very sensitive to initial sucrose content of the phloem tissue and the parameters related to plastic growth.
Keywords
sensitivity analysis, Solanum lycopersicum, horticulture, model calibration, mechanistic modelling, tissue extensibility, elastic modulus, TRUNK SHRINKAGE, SAP FLOW, GROWTH, TREES, STRESS, VALUES, MODEL, PLUM

Downloads

  • Effect of Stem Age on the Response of Stem Diameter Variations to Plant Water Status in Tomato.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 149.05 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Hanssens, Jochen, Tom De Swaef, Kathy Steppe, Kris Goen, Frans De Nayer, Lieve Wittemans, Herman Marien, and Johan Desmedt. 2012. “Effect of Stem Age on the Response of Stem Diameter Variations to Plant Water Status in Tomato.” In Acta Horticulturae, ed. Constantinos Kittas, Nikolaos Katsoulas, and Thomas Bartzanas, 952:907–914. Leuven, Belgium: International Society for Horticultural Science (ISHS).
APA
Hanssens, Jochen, De Swaef, T., Steppe, K., Goen, K., De Nayer, F., Wittemans, L., Marien, H., et al. (2012). Effect of stem age on the response of stem diameter variations to plant water status in tomato. In Constantinos Kittas, N. Katsoulas, & T. Bartzanas (Eds.), Acta Horticulturae (Vol. 952, pp. 907–914). Presented at the International symposium on Advanced Technologies and Management Towards Sustainable Greenhouse Ecosystems (GreenSYS 2011), Leuven, Belgium: International Society for Horticultural Science (ISHS).
Vancouver
1.
Hanssens J, De Swaef T, Steppe K, Goen K, De Nayer F, Wittemans L, et al. Effect of stem age on the response of stem diameter variations to plant water status in tomato. In: Kittas C, Katsoulas N, Bartzanas T, editors. Acta Horticulturae. Leuven, Belgium: International Society for Horticultural Science (ISHS); 2012. p. 907–14.
MLA
Hanssens, Jochen, Tom De Swaef, Kathy Steppe, et al. “Effect of Stem Age on the Response of Stem Diameter Variations to Plant Water Status in Tomato.” Acta Horticulturae. Ed. Constantinos Kittas, Nikolaos Katsoulas, & Thomas Bartzanas. Vol. 952. Leuven, Belgium: International Society for Horticultural Science (ISHS), 2012. 907–914. Print.
@inproceedings{3057602,
  abstract     = {Plant water status plays a major role in glasshouse cultivation of tomato (Solanum lycopersicum L.). New climate control technologies alter the glasshouse climate and make it less dependent on solar radiation. However, irrigation strategies are still often based on solar radiation sums. In order to maintain a good plant water status, it is interesting to use plant-based methods such as monitoring sap flow (F) or stem diameter variations (SDV). Though SDV give important information about plant water status, an unambiguous interpretation might be difficult because other factors such as stem age, fruit load and sugar content of the stem also affect SDV. In this study, an analysis of the effect of stem age on the response of SDV to water status was performed by calibration of a mechanistic flow and storage model. This allowed us to determine how parameter values changed across the growing season. Tissue extensibility decreased over the growing season resulting in a lower growth rate potential, whereas daily cycles of shrinking and swelling of the stem became more pronounced towards the end of the growing season. Parameters were then adapted to time-dependent variables and implemented in the model, allowing long term simulation and interpretation of SDV. Sensitivity analysis showed that model predictions were very sensitive to initial sucrose content of the phloem tissue and the parameters related to plastic growth.},
  author       = {Hanssens, Jochen and De Swaef, Tom and Steppe, Kathy and Goen, Kris and De Nayer, Frans  and Wittemans, Lieve and Marien, Herman and Desmedt, Johan},
  booktitle    = {Acta Horticulturae},
  editor       = {Kittas, Constantinos and Katsoulas, Nikolaos and Bartzanas, Thomas},
  isbn         = {9789066053380},
  issn         = {0567-7572},
  keyword      = {sensitivity analysis,Solanum lycopersicum,horticulture,model calibration,mechanistic modelling,tissue extensibility,elastic modulus,TRUNK SHRINKAGE,SAP FLOW,GROWTH,TREES,STRESS,VALUES,MODEL,PLUM},
  language     = {eng},
  location     = {Halkidiki, Greece},
  pages        = {907--914},
  publisher    = {International Society for Horticultural Science (ISHS)},
  title        = {Effect of stem age on the response of stem diameter variations to plant water status in tomato},
  url          = {http://www.actahort.org/books/952/952\_115.htm},
  volume       = {952},
  year         = {2012},
}

Web of Science
Times cited: