Cannabis photosynthetic and stomatal responses to water deficit, genotype-dependent drought response, biomass partitioning, and physiological interpretation under measured conditions.
Visual lesson 01
Symptom location
Mark whether the first visible problem begins on old leaves, new growth, upper canopy, lower canopy, one branch, roots, or the whole plant.
Interactive academic visual
Symptom location
Where a problem starts is part of the evidenceNew growth
Symptoms concentrated on expanding tissues should be recorded separately from those beginning on older leaves.
Knowledge check
PracticeCan you explain what the visual is showing?
Why record where a symptom appears first?
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 greenhouse disease diagnosis and integrated management, including powdery mildew, Botrytis, root disease, HLVd, sanitation, irrigation, airflow, and post-harvest microbial risk.
Cannabis leaf morphogenesis, phyllotaxy, plant architecture, reproductive transition, inflorescence development, trichome development, and senescence across a complete life cycle.
System context