Winter pruning of grapevines affects root growth and canopy size. Researchers studied how pruning Vitis vinifera cv. Pinot Gris vines impacted root density, distribution, and root/canopy ratio. They found that winter pruning increased root growth and distribution without harming canopy development. Vines that were not pruned had less root growth but a larger canopy. This information helps us understand how roots and above-ground parts of the plant interact and compete, which can guide vineyard management practices.