Research Article
Leaf Gas Exchange and Root Nodulation Respond to Planting Density in Soybean [Glycine max (L) Merrill]
Table 3
Effect of plant density and cultivar on intercepted photosynthetically active radiation (IPAR) at 50% flowering stage.
| | Intercepted photosynthetically active radiation (% of incoming PAR) | | Cultivars | | | Plant density (plants m−2) | EAI 3600 | DPSB 19 | Mean |
| | 10 | 86.5 | 60.0 | 73.2 | | 12 | 83.1 | 73.8 | 78.5 | | 20 | 87.1 | 67.8 | 77.4 | | 40 | 88.7 | 83.1 | 85.9 | | 80 | 92.7 | 90.5 | 91.6 |
| | Mean | 87.6 | 75.1 | | | -value | 0.034 | | | | HSD (0.05) | 12.01 | | | | CV (%) | 12.6 | | |
| | -value | | | | Density × season | 0.557 | | | | Variety × season | 0.989 | | | | Density × season × cultivar | 0.970 | | |
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HSD = Tukey’s honestly significant difference; CV = Coefficient of variation.
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