Table 2.
Soil parameters registered along different sites where Commiphora species grow. The results are the means of 5 replicates.
| C. giladensis | C. quadricincta | C. myrrha | C. kataf | C. habessinica | L.S.D. (P < 0.05) | |
|---|---|---|---|---|---|---|
| Coarse sand (%) | 7.1 | 0.57 | 5.6 | 3.8 | 8.2 | 2.10 |
| Fine sand (%) | 79.4 | 87.13 | 79.3 | 83.6 | 80.1 | 11.30 |
| Silt (%) | 9.8 | 9.3 | 10.9 | 9.2 | 8.2 | 1.74 |
| Clay (%) | 3.7 | 3 | 4.2 | 3.4 | 3.5 | 1.30 |
| pH | 7.70 | 7.60 | 7.50 | 7.70 | 7.40 | 0.40 |
| E.C. (mS/cm) | 1.43 | 1.13 | 1.43 | 1.05 | 1.40 | 0.51 |
| SO4-- (mg/Kgm) | 90.1 | 86.0 | 135.0 | 89.0 | 42.0 | 4.2 |
| Cl− (mg//Kgm) | 22.5 | 82.0 | 110.1 | 89.0 | 39.1 | 1.3 |
| HCO3- (mg//Kgm) | 33.8 | 67.8 | 79.0 | 119.0 | 90.3 | 1.6 |
| K+ (mg//Kgm) | 4.0 | 11.8 | 3.40 | 2.0 | 2.1 | 0.1 |
| Na+/Kgm) | 2.0 | 11.4 | 4.30 | 45.1 | 9.4 | 3.0 |
| Mg++ (/Kgm) | 15.5 | 28.0 | 39.1 | 26.5 | 22.2 | 2.1 |
| Ca++ (/Kgm) | 15.0 | 42.4 | 41.0 | 42.8 | 23.1 | 1.4 |
| Topography | Mountain slops, Mountain cliffs | Lava hills - Mountain slops | Mountain slops | Escarpment slope | Escarpment slope | |
| Altitude range (m) | 100-750 | 80–300 | 250–1200 | 260–1200 | 500–1150 | |
| Geological substratum | Eroded granite and black basalt | Eroded granite and black basaltic | Coarse pink granite mixed with diorite | Coarse pink granite mixed with diorite | Coarse pink granite mixed with diorite |