* Definition: Landraces are naturally occurring strains that have adapted to specific geographic regions over centuries. They are characterized by genetic diversity and phenotypic variation.
* Key Characteristics:
* Genetic Diversity: High genetic variability due to outcrossing and open pollination.
* Adaptation to Specific Environments: Well-suited to local climate, soil conditions, and pest pressures.
* Phenotypic Variation: A wide range of phenotypes, including variations in plant height, leaf shape, flower structure, and cannabinoid profiles.
* Classification: Landraces are often classified as open-pollinated varieties (OPVs).
The Evolution from Landrace to IBL* Definition: IBLs are highly inbred strains that have been self-pollinated for multiple generations. This process reduces genetic diversity and results in a genetically homogeneous population.
* Key Characteristics:
* Genetic Uniformity: High degree of genetic similarity among individuals.
* Predictable Traits: Consistent performance in terms of growth, yield, and cannabinoid profile.
* Stability: Well-suited for commercial cultivation and breeding programs.
* Classification: IBLs are considered stabilized varieties.
* Landrace Selection: Breeders identify desirable traits in a landrace population.
* Selective Breeding: Plants with desired traits are selected and crossed to produce offspring with those traits.
* Inbreeding: Repeated self-pollination or sibling mating to increase homozygosity and stabilize traits.
* Line Stabilization: Multiple generations of inbreeding to create a genetically uniform IBL.