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. 2020 Oct 26;10:18221. doi: 10.1038/s41598-020-75212-4

Table 1.

Shoot hydraulic measurements of E. grandis seedlings grown in a greenhouse.

Treatment Ψo saturation (MPa) Ψo TLP (MPa) Apoplastic RWC Emax (MPa)
Control Well watered  − 1.32 ± 0.10 NS  − 1.49 ± 0.08 NS 0.40 ± 0.08 A 8.40 ± 1.13 A
Drought + Recovery  − 1.39 ± 0.04  − 1.53 ± 0.05 0.29 ± 0.04 9.96 ± 0.51
N33 Well watered  − 1.14 ± 0.08  − 1.33 ± 0.06 0.52 ± 0.09 AB 6.78 ± 1.20 AB
Drought + Recovery  − 1.29 ± 0.11  − 1.47 ± 0.09 0.45 ± 0.09 7.77 ± 1.30
M25 Well watered  − 1.15 ± 0.09  − 1.35 ± 0.08 0.53 ± 0.08 B 6.56 ± 1.09 B
Drought + Recovery  − 1.13 ± 0.05  − 1.38 ± 0.03 0.61 ± 0.07 5.42 ± 0.99

Plants were cultivated under two water conditions: “Well watered” as a regular watering or “Drought + Recovery”, consisting of watering for 35 days, then suspending the irrigation for a period of 55 days, followed by 24 days with watering at field capacity. Ψo saturation = osmotic potential at inner water saturation; Ψo TLP = osmotic potential at the turgor loss point; apoplastic RWC = relative water content in the apoplast; Emax = coefficient of maximum elasticity. Measurements were made in a branch excised from each of 6 plants per treatment. Results are expressed as means ± SEM. Different letters indicate significant differences in a two-way ANOVA (P-value < 0.05). NS = non-significant.