Table 1 Seedling's parameters (means ± SEM; n = 4) calculated for the six studied species in the 30-day germination assays.
Parameter | MPa PEG | B. pilosa | C. cyanus | E. purpurea | L. sinuatum | L. maritima | O. biennis |
|---|---|---|---|---|---|---|---|
Radicle length (mm) | 0 | 32.7 ± 1.7 c (0%) | 23.9 ± 1.7 d (0%) | 11.4 ± 0.2 e (0%) | 16.1 ± 1.5 b (0%) | 8.0 ± 0.3 b (0%) | 11.3 ± 0.2 d (0%) |
−0.25 | 23.7 ± 0.6 b (27.5%) | 18.9 ± 0.6 c (21.0%) | 7.2 ± 0.1 d (36.1%) | 16.0 ± 1.0 b (0.4%) | 9.1 ± 0.1 b (−12.8%) | 8.1 ± 0.0 c (28.4%) | |
−0.5 | 20.7 ± 0.5 b (36.6%) | 13.0 ± 0.7 b (45.4%) | 4.4 ± 0.1 c (61.5%) | 12.1 ± 0.7 b (24.7%) | 8.6 ± 0.2 b (−7.5%) | 7.5 ± 0.0 b (33.9%) | |
−0.75 | 8.7 ± 1.0 a (73.3%) | 9.7 ± 0.4 b (59.1%) | 2.1 ± 0.0 b (81.6%) | 4.1 ± 0.2 a (74.1%) | 3.7 ± 1.2 a (54.2%) | 3.3 ± 0.1 a (70.4%) | |
−1 | n.g | 4.1 ± 0.1 a (82.7%) | n.g | 1.3 ± 0.4 a (91.5%) | n.g | n.g | |
Hypocotyl length (mm) | 0 | 29.9 ± 2.8 b (0%) | 28.1 ± 0.3 e (0%) | 11.9 ± 0.2 d (0%) | 20.4 ± 1.8 c (0%) | 16.9 ± 0.5 c (0%) | 12.0 ± 0.4 d (0%) |
−0.25 | 25.6 ± 0.3 b (14.3%) | 19.8 ± 0.8 d (29.5%) | 8.2 ± 0.0 c (31.5%) | 16.6 ± 0.7 c (18.4%) | 12.8 ± 0.1 b (24.2%) | 6.9 ± 0.1 c (41.9%) | |
−0.5 | 24.4 ± 0.3 b (18.5%) | 11.1 ± 0.5 c (60.3%) | 5.3 ± 0.1 b (55.8%) | 10.3 ± 0.4 b (49.3%) | 11.8 ± 0.2 b (30.3%) | 4.5 ± 0.1 b (62.7%) | |
−0.75 | 8.6 ± 0.3 a (71.1%) | 8.6 ± 0.2 b (69.2%) | 0 a (100%) | 5.4 ± 0.2 a (73.6%) | 4.3 ± 1.4 a (74.7%) | 2.8 ± 0.0 a (76%) | |
−1 | n.g | 5.7 ± 0.3 a (79.5%) | n.g | 1.6 ± 0.5 a (91.8%) | n.g | n.g | |
SVI | 0 | 24.6 ± 1.6 b | 14.3 ± 1.7 c | 10.3 ± 0.2 d | 15.2 ± 2.8 d | 13.6 ± 1.0 c | 11.4 ± 0.6 d |
−0.25 | 23.8 ± 0.6 b | 15.2 ± 0.2 c | 6.8 ± 0.3 c | 11.2 ± 1.2 cd | 10.5 ± 0.1 b | 6.8 ± 0.1 c | |
−0.5 | 21.2 ± 0.5 b | 8.2 ± 0.5 b | 3.5 ± 0.4 b | 7.0 ± 0.4 bc | 8.3 ± 0.5 b | 4.1 ± 0.1 b | |
−0.75 | 2.8 ± 0.2 a | 5.3 ± 0.1 b | 0 a | 3.4 ± 0.4 ab | 0.5 ± 0.2 a | 2.4 ± 0.1 a | |
−1 | n.g | 1.6 ± 0.1 a | n.g | 0.2 ± 0.1 a | n.g | n.g |
