Canon - Clones vs. Massal Selection

definition

Cloning and massal selection refer to two different methods of vegetative propagation of grapevines. While clones produce genetically identical offspring from a single mother plant, massal selection is based on the propagation of wood from several individual vines within an existing vineyard.

Diversity model

Clonal selection aims for homogeneity, yield stability, and phytosanitary control. It enables uniform plantings and reduced risks through known traits, but leads to a genetic narrowing within the vineyard.

Mass selection preserves greater genetic diversity within the same grape variety. Through the long-term adaptation of individual vines to site and environmental conditions, it can maintain epigenetic differentiation. At the same time, the phytosanitary risk increases due to the reduced control of the starting material.

Demarcation

• Clone (standardized) ≠ mass selection (individual)
• Breeding (new development) ≠ Selection (preservation of existing genetics)