stomatal conductance

Stomatal conductance refers to the rate at which gases, mainly carbon dioxide and water vapor, move between a plant’s leaves and the atmosphere through tiny openings called stomata. These openings can open or close to regulate gas exchange, balancing the plant's needs for photosynthesis and water conservation. High stomatal conductance means the stomata are open, allowing more gas exchange, which is beneficial for growth but increases water loss. Conversely, low conductance indicates closed stomata, reducing water loss but also limiting carbon intake needed for photosynthesis. It’s a key factor in how plants respond to their environment.