SC-1 Leaf Porometer Conductance

A Leaf Porometer is a portable handheld instrument designed to measure stomatal conductance (and/or stomatal resistance) of plant leaves. Stomatal conductance is a key indicator of how open the stomata are on a leaf surface, thus relating to transpiration rate, plant‐water stress, CO₂ uptake, and overall plant health.

By clamping or placing the porometer sensor head onto a leaf surface, the device measures the rate at which water vapor diffuses through the stomata of the leaf and reports this as conductance (e.g., mmol m⁻² s⁻¹) or resistance (s m⁻¹) units. This non‑destructive approach is well suited for agronomy, plant science research, irrigation scheduling, phenotyping and environmental stress studies.