Authors: Lembrechts JJ1, Zinnert JC², Mänd P³, De Boeck HJ1 Reviewer: Porcar Castell A4 Measurement unit: Fv/Fm or related variables; Measurement scale: leaf part; Equipment cost: €€–€€€; Running costs: €; Installation effort: low; Maintenance effort: medium (frequent recording); Knowledge need: medium to high (for interpretation); Measurement mode: manual Chlorophyll fluorescence…
5.2 Chlorophyll and carotenoid content
Authors: Mänd P1 Reviewers: Porcar Castell A2, Linder S3 Measurement unit: mg cm-2, mg g-1; Measurement scale: leaf-level; Equipment costs: €–€€; Running costs: €; Installation effort: medium; Maintenance effort: low; Knowledge: medium; Measurement mode: manual Chlorophylls and carotenoids are plant pigments which absorb light energy for use in photosynthesis….
5.3 Non-structural carbohydrates
Authors: McDowell NG1, Hoch G2, Landhäusser SM3 Reviewer: Dickman LT4 Measurement unit: percent dry weight; Measurement scale: grinding unit, spectrophotometer, water bath, etc.; Equipment costs: €€€; Running costs: €; Installation effort: medium; Maintenance effort: medium; Knowledge need: medium; Measurement mode: manual Non-structural carbohydrates (NSCs) provide the energy to sustain…
5.4 Lethal dose (LD50) to quantify stress tolerance exemplified by frost tolerance
Authors: Kreyling J1, Lembrechts JJ2, De Boeck HJ2 Reviewer: Lenz A3 Measurement unit: same as unit of interest, e.g. °C; Measurement scale: for frost tolerance: temperature test chamber; Equipment costs: €€€; Running costs: €; Installation effort: medium; Maintenance effort: low; Knowledge need: medium; Measurement mode: manual measurement Our understanding…
5.5 Leaf temperature
Authors: Michaletz ST1,2,3, Blonder B4,5, De Boeck HJ6 Reviewer: Goldsmith GR7 Measurement unit: K (Kelvin); Measurement scale: leaf or canopy; Equipment costs: €€-€€€; Running costs: €-€€€; Installation effort: medium; Maintenance effort: medium; Knowledge need: medium; Measurement mode: manual or data logger The temperature of plant tissues is determined both…
5.6 Leaf thermal traits
Authors: Michaletz ST1,2,3, Blonder B4,5 Reviewer: Prentice IC6 Measurement unit: various (see below); Measurement scale: leaf; Equipment costs: €€-€€€; Running costs: €-€€€; Installation effort: medium to high; Maintenance effort: -; Knowledge need: medium; Measurement mode: manual Leaf thermal traits determine the exchanges of energy between leaves and their environment…
5.7 Stomatal conductance
Authors: Zinnert J1, Estiarte M2,3, Johnson DM4 Reviewer: Dickman LT5 Measurement unit: Mol H2O m-2 s-1; Measurement scale: leaf; Equipment costs: €€–€€€; Running costs: €; Installation effort: low; Maintenance effort: low; Knowledge need: medium; Measurement mode: manual or data logger Stomatal conductance is a calculation of the influence of…
5.8 Psychrometry for water potential measurements
Authors: Miller ML1, Estiarte E2,3, Johnson DM4, Zinnert J5 Reviewer: Meinzer F6 Measurement unit: MPa; Measurement scale: single leaf or stem segment, soil sample; Equipment costs: €€; Running costs: €; Installation effort: medium; Maintenance effort: medium; Knowledge need: medium; Measurement mode: data logger Water potential, at its most basic,…
5.9 Pressure-volume curves – TLP, ε, Ψo
Authors: Zinnert J1, Wood LK1, Johnson DM2, Estiarte3,4 Reviewer: Dickman LT5 Measurement unit: MPa; Measurement scale: leaf or stem; Equipment costs: €€; Running costs: €; Installation effort: medium; Maintenance effort: low; Knowledge need: medium; Measurement mode: manual Plant water relations are important in the maintenance of turgor and control…
5.10 Maximum leaf hydraulic conductance
Authors: Scoffoni C1, Sack L2 Reviewer: Dickmann LT3, Estiarte M4,5 Measurement unit: Kleaf in mmol m-2 s-1 MPa-1; Measurement scale: leaf; Equipment costs: €€€; Running costs: €; Installation effort: low; Maintenance effort: low; Knowledge need: medium; Measurement mode: data logger The leaf hydraulic conductance (Kleaf) quantifies the efficiency of…