Skip to main content

Table 1 Seedlings dry weights, needle chlorophyll content (NC), net photosynthesis (NP), transpiration (E), water potential (WP), whole root system hydraulic conductance (K TOT ) and hydraulic conductivity (L TOT ) in flooded adventitious roots and non-flooded control roots of tamarack seedlings

From: Role of adventitious roots in water relations of tamarack (Larix laricina) seedlings exposed to flooding

  Non-flooded Flooded
Root DW (g) 13.8 ± 0.5 11.8 ± 1.2
Shoot DW (g) 26.5 ± 1.7 25.7 ± 3.5
Total DW (g) 39.5 ± 2.3 38.3 ± 4.7
Shoot:Root Ratio 1.9 ± 0.1 2.3 ± 0.3
NC (mg g-1 DW) 14.7 ± 1.0a 9.4 ± 0.7b
NP (μmol CO2 m-2 s-1) 5.6 ± 1.2 6.4 ± 1.5
E (mmol H2O m-2 s-1) 0.5 ± 0.1 0.6 ± 0.1
WP (MPa) −0.78 ± 0.04 −0.81 ± 0.05
KTOT (kg MPa-1 s-1 × 10-5) 1.2 ± 0.2 1.2 ± 0.4
LTOT (kg MPa-1 cm-3 s-1 × 10-7) 2.0 ± 0.3 1.6 ± 0.1
  1. Different letters within the same row indicate significant differences between flooded and non-flooded plants (t-test, p = 0.05). Values are means ± SE (n = 6 for KTOT and LTOT and n = 7 for the rest of the measurements).