Bud Rot Resistance

Bud rot resistance refers to a plant's genetic capacity to withstand fungal pathogens—primarily Botrytis cinerea—that cause flower tissue decay in high-humidity or poor-air-flow conditions. This classification encompasses structural and biochemical traits that reduce susceptibility to rot development, including dense trichome coverage, lower flower density, and faster maturation rates. Lineage records frequently report bud rot resistance clustering in certain cultivar families, particularly those originating from regions with challenging growing climates. Resistance is multifactorial and environment-dependent; genetics alone cannot guarantee protection without proper cultivation practices including airflow management and humidity control.

Breeders working in humid climates or outdoor environments prioritize bud rot resistance as a stabilizing trait, often crossing susceptible high-yield cultivars with resistant genetics to balance potency and disease resilience. Selection for this trait typically involves multi-generational testing under controlled high-humidity conditions to verify genetic expression.