Research Article
Identification of Putative Molecular Markers Associated with Root Traits in Coffea canephora Pierre ex Froehner
Table 2
Range and mean values of the morphophysiological parameters in 134 F1 mapping population of Coffea canephora (L1 valley × S.3334).
| | Serial number | Parameters | Range | Mean | STDEV |
| Root traits | 1 | Root length (cm2) | 41.5–83.0 | 57.08 | 7.29 | 2 | Number of secondary roots | 2–60 | 26.9 | 12.61 | 3 | Root dry weight (g/plant) | 2.57–34.69 | 13.77 | 6.6 | 4 | Root : shoot ratio | 0.23–0.39 | 0.27 | 0.03 |
| Morphological traits | 5 | Plant height (cm2) | 13.5–105.3 | 72.6 | 15.69 | 6 | Number of nodes | 11.0–42.0 | 24.08 | 6.88 | 7 | Number of leaves | 2–70 | 34.02 | 13.42 | 8 | Stem girth (mm) | 5.88–13.65 | 10.28 | 1.79 | 9 | Internodal length (cm) | 1.9–12.5 | 8.54 | 2 | 10 | Specific leaf dry weight (mg/dm2) | 1.41–2.64 | 1.8 | 0.22 | 11 | Final leaf area (cm2) | 1136.92–8190.61 | 4491.19 | 1710.17 | 12 | Specific leaf area (cm) | 378.99–710.97 | 562.44 | 65.34 | 13 | Total leaf dry weight (g/plant) | 5.78–48.59 | 26.02 | 10.43 | 14 | Stem dry weight (g/plant) | 4.81–52.62 | 24.33 | 10.4 | 15 | Shoot dry weight (g/plant) | 10.59–96.64 | 50.35 | 20.63 | 16 | Total dry matter (g/plant) | 11.6–121.43 | 57.93 | 24.77 |
| Gravimetric traits | 17 | Leaf area duration (dm2 days) | 1065.89–7992.77 | 4372.52 | 1658.04 | 18 | Net assimilation rate | 8.9–19.38 | 13.07 | 1.71 | 19 | Cumulative water transpiration (lt/plant) | 2.5–23.5 | 10.81 | 4.62 | 20 | Water use efficiency (g/kg) | 3.86–6.84 | 5.4 | 0.58 | 21 | Mean transpiration rate (mL/dm2 days) | 1.5–3.52 | 2.44 | 0.38 | 22 | Delta 13c (mill) | 19.75–26.53 | 21.8 | 1.11 |
| Gas exchange parameters | 23 | Photosynthesis (Pn). (mmol/m2/S) | 5.45–27.27 | 16.9 | 3.91 | 24 | Transpiration rate () (mg/m2/s) | 0.71–7.47 | 3.38 | 1.34 | 25 | Conductance (gs) (mmol/m2/s) | 0.05–1 | 0.35 | 0.17 | 26 | Ci/gs | 288.76–3484.25 | 859.3 | 405.1 | 27 | Ci | 186.5–296.67 | 247.98 | 24.88 | 28 |
A/gs | 24.06–93.26 | 54.42 | 15.52 | 29 |
A/ | 2.63–14.07 | 5.52 | 1.76 |
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