Table 1. Leaf constants.
| No | Parameters | Value (in 1mm2 area) |
| 1 | Average stomatal number in 25 different fields (400×) | 130 |
| 2 | Stomatal index (4000×) lower suface | 15.6-18.5 |
| 3 | Vein-islet number (50×) | 16-18-20 |
| 4 | Vein-termination number (50×) | 10-12-14 |
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