Flowering & Reproductive Development
Sex-Expression Plasticity & Mixed-Flower Observation
Cannabis sex phenotype is genetically anchored but can show developmental and environmental plasticity. Mixed-sex structures should be documented precisely; their presence does not by itself prove one environmental cause.
Key concepts
- Cannabis commonly has differentiated sex chromosomes
- Sex expression also involves hormonal, developmental, and environmental regulation
- Genotype influences stability
- Stress associations are context dependent and should not be turned into one-cause rules
What to measure or observe
- Identify the exact floral structure
- Record plant, branch, node, and date
- Inspect related clones or siblings
- Document environmental disruptions and plant health without assuming causality
Common mistakes
- Calling swollen bracts male flowers
- Assuming every mixed-sex event has the same trigger
- Failing to inspect the rest of the plant
- Discarding lineage and environmental records
Visuals this lesson still needs
- Pistillate versus staminate versus mixed structures
- Whole-plant location map
- Lineage observation table
- Cause-versus-association diagram