Cannabis leaf morphogenesis, phyllotaxy, plant architecture, reproductive transition, inflorescence development, trichome development, and senescence across a complete life cycle.
Visual lesson 04
Symptom pattern language
Describe chlorosis, necrosis, spotting, curl, wilt, and texture by location and distribution before assigning a cause.
Interactive academic visual
Symptom pattern language
Describe what is visible before assigning a causeChlorosis
Loss of green color can be uniform, interveinal, marginal, localized or age-dependent; record the distribution precisely.
Knowledge check
PracticeCan you explain what the visual is showing?
What should come before assigning a cause to a leaf symptom?
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.
System context