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Table 2 Effects of CO2 concentrations on the stomatal parameters at different leaf surfaces of soybean

From: Elevated CO2 concentration induces photosynthetic down-regulation with changes in leaf structure, non-structural carbohydrates and nitrogen content of soybean

Parameters

SD (No. mm−2)

SL (mm)

SW (mm)

SA (mm2)

SP (mm)

SAI (%)

SSI (%)

CO2

0.149

0.531

0.352

0.102

0.910

0.194

0.130

Leaf surface

< 0.001

< 0.001

< 0.001

< 0.001

0.805

0.933

0.002

CO2 × Leaf surface

0.009

0.158

0.350

0.006

0.269

0.323

0.290

  1. Note: SD is stomatal density, SL is stomatal length, SW is stomatal width, SA is stomatal area, SP is stomatal perimeter, SAI is stomatal area index, and SSI is stomatal shape index