Monitoring water potential and relative water content in Eucalyptus Camaldulensis using near infrared spectroscopy

G L Yang; W H Lu; Y Lin; J Z Luo; C B Wang; Roger Meder; Paul Warburton; R J Arnold

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Monitoring water potential and relative water content in Eucalyptus Camaldulensis using near infrared spectroscopy

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Monitoring water potential and relative water content in Eucalyptus Camaldulensis using near infrared spectroscopy

G L Yang, W H Lu, Y Lin, J Z Luo, C B Wang, Roger Meder, Paul Warburton and R J Arnold

Journal of Tropical Forest Science, Vol.29(1), pp.121-128

2017

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Abstract

Forestry Sciences

physiology

portable NIR

non-destructive assessment

A genetically diverse cohort of Eucalyptus camaldulensis seedlings were grown under a range of irrigation treatments to impose a range of states of water stress. Near infrared (NIR) spectra obtained from leaf surfaces of these seedlings were calibrated against physiological measurements commonly associated with plant water stress, i.e. relative water content and midday leaf water potential. Spectral data were obtained from upper (adaxial) leaf surfaces of upper and lower leaves on the stem. A strong coefficient of determination of R2 P = 0.78 was obtained for the validation set using the calibration developed for midday leaf water potential from the seedling leaf data. However, that for relative water content was relatively low: R2 P = 0.41. These results indicated that portable NIR has the potential to provide for rapid, non-destructive assessment of the leaf water potential in E. camaldulensis seedlings.

Details

Title: Monitoring water potential and relative water content in Eucalyptus Camaldulensis using near infrared spectroscopy
Authors: G L Yang (Author) - Chinese Academy of Forestry, China
W H Lu (Author) - Chinese Academy of Forestry, China
Y Lin (Author) - Chinese Academy of Forestry, China
J Z Luo (Author) - Chinese Academy of Forestry, China
C B Wang (Author) - Chinese Academy of Forestry, China
Roger Meder (Author) - University of the Sunshine Coast - Faculty of Arts, Business and Law
Paul Warburton (Author) - Riau Andalan Pulp and Paper, Indonesia
R J Arnold (Author) - Chinese Academy of Forestry, China
Publication details: Journal of Tropical Forest Science, Vol.29(1), pp.121-128
Publisher: Forest Research Institute Malaysia
Date published: 2017
ISSN: 0128-1283
Organisation Unit: University of the Sunshine Coast, Queensland; Forest Industries Research Centre
Language: English
Record Identifier: 99450447402621
Output Type: Journal article

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