Stomatal conductance and sap flow are two critical physiological parameters that help us understand how plants regulate water, gas exchange, and nutrient transport in response to their environment.
These measurements provide real-time insights into:
Stomatal conductance (usually in mmol/m²/s) measures the rate at which water vapor and CO₂ pass through plant stomata — tiny pores on the leaf surface. It reflects how “open” the stomata are, which is tightly regulated based on environmental conditions.
Sap flow measures the movement of water through the xylem — from roots to leaves — often in grams/hour or liters/day. It gives a direct view of plant transpiration rate and internal water transport efficiency.
We are actively exploring the integration of stomatal and sap flow data into:
Our goal is to combine these physiological signals with:
...to build adaptive systems that respond like growers — but act faster and with more precision.
| Use Case | Benefit |
|---|---|
| Water Use Efficiency (WUE) | Optimize irrigation timing and volume |
| Early Stress Detection | React before visual symptoms appear |
| Climate System Feedback | Adjust fans, CO₂, and lighting in real time |
| Nutrient Uptake Correlation | Link transpiration to delivery efficiency |
| Cultivar Evaluation | Compare response profiles under same conditions |
Monitoring the plant, not just the environment, is a cornerstone of ElecSys Lab’s next-generation CEA systems.
Stomatal conductance and sap flow bring us closer to that goal — one breath and one droplet at a time.