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Table 3 The mean plant water potential (±SD) of C. mopane recorded at Salambala in different seasons (dry season in August 2001, ‘extreme’ dry season in June 2002 and early rainy season in November 2002). The Number of observations is in brackets; all means are significant at P < 0.05 (Tukey LSD test)

From: Adaptation of Colophospermum mopane to extra-seasonal drought conditions: site-vegetation relations in dry-deciduous forests of Zambezi region (Namibia)

Date, site Number of observations Plant water potentials (MPa)
Pre-dawn Midday Diurnal range
Aug 2001 Forest (8) −1.46 ± 0.21 −4.44 ± 0.25 2.98 ± 0.31
Shrubs (6) −2.25 ± 0.17 −4.42 ± 0.31 2.17 ± 0.27
Swamp (6) −1.10 ± 0.03 −3.70 ± 0.40 2.60 ± 0.38
Jun 2002 Forest (9) −4.28 ± 0.38 −4.82 ± 0.38 0.54 ± 0.25
Shrubs (8) −3.46 ± 0.49 −5.23 ± 0.48 1.76 ± 0.72
Swamp (7) −2.99 ± 0.73 −4.14 ± 0.45 1.16 ± 0.57
Nov 2002 Forest (8) −2.66 ± 0.25 −3.46 ± 0.33 0.80 ± 0.38
Shrubs (6) −3.05 ± 0.32 −3.47 ± 0.33 0.36 ± 0.29
Swamp (6) −2.63 ± 0.21 −3.15 ± 0.23 0.52 ± 0.29