Cannabis leaf gas exchange under varying PPFD, temperature, and CO2; supports coupled response teaching while keeping experimental genotype and chamber conditions explicit.
Visual lesson 07
CO2 diffusion & photosynthetic response
Trace carbon dioxide from bulk air through the leaf boundary layer and stomata to photosynthetic tissues, then compare Cannabis responses to changing CO2 while keeping cultivar, PPFD, temperature, nutrient, and measurement conditions visible.
System study map
CO2 diffusion & photosynthetic response
CO2 diffusion pathway and photosynthetic-response overlayStart with the highlighted plant system as the anatomical context. Then compare the lesson observations with the evidence sources and knowledge check below so structure, process, and whole-plant consequences stay connected.- Plant system
- Environment Overlay
- Lesson focus
- CO2 diffusion pathway and photosynthetic-response overlay
- Study mode
- Whole-plant context
Knowledge check
PracticeCan you explain what the visual is showing?
Why should a Cannabis CO2 response be shown together with PPFD, temperature, and stomatal behavior?
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.Cannabis gas exchange, photosynthesis, transpiration, stomatal conductance, PPFD, temperature, and carbon-dioxide response under measured conditions.
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