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Evaluating the usefulness of continuous leaf turgor pressure measurements for the assessment of Persimmon tree water status

Martínez‑Gimeno, MA, Castiella, M, Rüger, S, Intrigliolo, DS and Ballester, C 2017, Evaluating the usefulness of continuous leaf turgor pressure measurements for the assessment of Persimmon tree water status, Irrigation science, vol. 35, no. 2, pp. 159-167, doi: 10.1007/s00271-016-0527-3.

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Title Evaluating the usefulness of continuous leaf turgor pressure measurements for the assessment of Persimmon tree water status
Author(s) Martínez‑Gimeno, MA
Castiella, M
Rüger, S
Intrigliolo, DS
Ballester, CORCID iD for Ballester, C orcid.org/0000-0002-6885-0883
Journal name Irrigation science
Volume number 35
Issue number 2
Start page 159
End page 167
Total pages 9
Publisher Springer
Place of publication Berlin, Germany
Publication date 2017-03
ISSN 0342-7188
1432-1319
Summary Continuous plant water status monitoring is crucial in order to improve irrigation management. The noninvasive Yara ZIM-probe was assessed for detecting plant water stress in Persimmon trees (Diospyros kaki L.f.). The probe measures the pressure transfer function (Pp) through a patch of an intact leaf, which is inversely correlated with the turgor pressure. This technology was evaluated in two parallel experiments involving either distinct watering regimes or rootstocks with different drought tolerance [Diospyros lotus (L) and Diospyros virginiana (V)]. Concomitant measurements of midday stem water potential (Ψstem) and trunk diameter variations were taken throughout the experiments. Pp was highly correlated with Ψstem. Persimmon leaves exhibited the inversed Pp curve phenomena under water stress, which enabled the association of a particular range of Ψstem to each of the three leaf turgor states defined. Persimmon trees with no sign of initial or total inversion ensured Ψstem above −0.8 MPa, values considered of a well-watered Persimmon tree. Yara ZIM-probe readings as well as Ψstem and trunk diameter variation measurements pointed L as a more sensitive rootstock to drought than V. In conclusion, results showed that the Yara ZIM-probe can be used to continuously monitor water status in Persimmon trees although further research would be needed to ensure their feasibility for scheduling irrigation.
Language eng
DOI 10.1007/s00271-016-0527-3
Field of Research 070108 Sustainable Agricultural Development
070107 Farming Systems Research
Socio Economic Objective 970107 Expanding Knowledge in the Agricultural and Veterinary Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30088780

Document type: Journal Article
Collections: School of Life and Environmental Sciences
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.