Research Article
Leaf Gas Exchange and Root Nodulation Respond to Planting Density in Soybean [Glycine max (L) Merrill]
Table 5
Effect of plant density, cultivar and season on sub-stomatal carbon dioxide concentration (µmol CO2 mol−1).
| | Sub-stomatal carbon dioxide concentration (μmol CO2 mol−1) | Plant density (plants m−2) | EAI 3600 | DPSB 19 | | | Long rains 2018 | Short rains 2018 | Long rains 2018 | Short rains 2018 | Mean |
| 10 | 93.12 | 61.78 | 207.65 | 81.90 | 104.86 | 12 | 154.75 | 79.56 | 58.37 | 107.54 | 96.83 | 20 | 65.57 | 103.43 | 149.57 | 97.42 | 102.41 | 40 | 107.95 | 40.70 | 27.04 | 70.06 | 57.61 | 80 | 46.92 | 38.93 | 109.41 | 48.16 | 58.06 |
| Mean (cultivar) | 75.86 | | 89.30 | | | -value | <0.001 | | | | | HSD(0.05) | 55.70 | | | | | CV (%) | 20.0 | | | | |
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HSD = Tukey’s honestly significant difference; CV = Coefficient of variation.
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