Botrytis Resistance Markers

Botrytis resistance markers refer to phenotypic and genotypic traits that breeders associate with reduced susceptibility to Botrytis cinerea (gray mold), a common fungal pathogen in cannabis cultivation. These markers—including dense trichome production, lower leaf humidity retention, and specific plant architecture patterns—are frequently observed in lineages bred for indoor and outdoor cultivation in humid climates. Breeders working in this category often select parent plants showing tight flower structure, rapid moisture evaporation, and reported lower infection rates across generations. Genetic research into cannabis-Botrytis interactions remains limited, but cultivation records and breeding logs commonly document correlations between certain morphological traits and disease pressure. This classification serves as a practical breeding reference rather than a guarantee of immunity.

Breeders incorporate botrytis resistance markers into programs targeting commercial cultivation in high-humidity environments or regions with seasonal moisture challenges. Selection for these traits typically involves multi-generational phenotypic observation and environmental stress testing during breeding cycles.