Botrytis Resistance Traits

Botrytis resistance traits refer to genetic characteristics that confer tolerance or resilience to Botrytis cinerea (gray mold), a common fungal pathogen affecting cannabis cultivation. While no cannabis variety is fully immune, certain lineages show increased resistance through denser bud structure, faster maturation, reduced bract-to-calyx ratios, or improved air circulation within flowers. Breeders working in this category often select parent plants that demonstrate lower susceptibility in humid or high-moisture environments. These traits are particularly valued in regions with challenging climates or indoor operations prone to moisture control challenges. Botrytis resistance is polygenic and influenced by both genetics and cultivation conditions, making it a complex breeding objective. Documentation of resistance potential typically comes from breeder observations and cultivation fee

Breeders crossing for botrytis tolerance prioritize parent plants with tight, rapid-finishing flower structures and naturally lower humidity requirements. Selection for these traits requires multi-generational observation under controlled humidity stress to identify stable resistance markers.