Cannabis gas exchange, photosynthesis, transpiration, stomatal conductance, PPFD, temperature, and carbon-dioxide response under measured conditions.
Visual lesson 02
Temperature & humidity
See how air temperature and relative humidity combine to shape evaporative demand rather than acting as independent numbers.
Interactive academic visual
Temperature & humidity
Relative humidity changes meaning with temperature because vapor pressure is temperature-dependentAir temperature
Warmer air has a higher saturation vapor pressure, so temperature changes the vapor-pressure context even if relative humidity is unchanged.
Knowledge check
PracticeCan you explain what the visual is showing?
Why should temperature and relative humidity be considered together?
Track this lesson
Mark the lesson complete when you are comfortable with the visual, observations, and system context.
Evidence & further reading
Sources connected to this lesson
These references support specific biological, diagnostic, environmental, or process concepts used in this lesson. They are not a substitute for crop-specific testing or local regulatory guidance.Vapor-pressure-deficit sensing and stomatal response mechanisms in vascular plants, including hydraulic and ABA-mediated regulation.
Cannabis photosynthetic and stomatal responses to water deficit, genotype-dependent drought response, biomass partitioning, and physiological interpretation under measured conditions.
System context