Cercis canadensis var. texensis | Taxodium distichum | |||||||
---|---|---|---|---|---|---|---|---|

Soil treatment | Height^{z} (cm) | Trunk Diameter^{z} (mm) | Portion of the canopy with stress symptoms^{y} (%) | Soil water potential^{x} (kPa) | Predawn xylem water potential^{y} (MPa) | Height^{z} (cm) | Trunk diameter^{z} (mm) | Root density^{z} (mg≅cm^{−3}) |

Bare soil | 235 a^{wv} | 24.8 a^{wv} | 28 c^{wu} | −6.4 a^{wt} | −0.26 c^{wu} | 291 a^{wv} | 70.0 a^{wv} | 1.11 a^{wv} |

Pale blond tan bricks | 215 bc | 21.3 b | 44 ab | −5.5 bc | −0.83 a | 269 a | 71.0 a | 0.76 ab |

Red-brown bricks | 200 c | 21.6 b | 56 a | −4.9 c | −0.48 b | 289 a | 71.3 a | 0.68 ab |

Dark charcoal bricks | 219 b | 24.3 a | 42 b | −5.8 ab | −0.55 ab | 297 a | 68.8 a | 0.56 b |

↵

^{z}Shoot and root growth measures are values from the end of the study.↵

^{y}Canopy stress symptoms and predawn xylem water potentials are means of five sample dates during growing season.↵

^{x}Soil water potentials are means of 14 sample dates during growing season.↵

^{w}Means followed by the same letters within a column are not different at*P*< 0.05 level using least squares means procedure.↵

^{v}Values represent mean of 5 observations.↵

^{u}Values represent mean of 25 observations.↵

^{t}Values represent mean of 70 observations.