Researchers Unveil Tool for Choosing Grapevine Rootstocks

A new digital tool developed by researchers aims to help winegrowers choose grapevine rootstocks more systematically, using soil and local climate data to narrow down options that can better withstand drought and other growing conditions.

The preprint, posted on Preprints.org, describes Vitis, also referred to as SR-Vitis, a decision-support system designed to match rootstocks with specific pedoclimatic conditions. The tool is intended to reduce the uncertainty that often comes with selecting rootstocks, a choice that can shape vine vigor, water use, nutrient uptake and long-term vineyard performance.

According to the authors, the system takes information about soil and climate conditions and turns it into recommendations for rootstock selection. It also generates an automatic PDF report, which could make it easier for growers, consultants and technical advisers to document decisions and compare alternatives before planting.

Rootstock selection has become more important as vineyards face greater pressure from water stress, soil limitations and changing weather patterns. In many wine regions, growers are looking for vines that can cope with hotter summers, irregular rainfall and soils that may limit root growth or nutrient availability. A tool that organizes those variables in one place could help vineyards make more resilient planting decisions.

The preprint presents the system as a practical aid rather than a replacement for field expertise. Vineyard managers still need to consider local knowledge, varietal goals and production style, but the software is meant to bring together data that are often scattered across soil surveys, climate records and technical recommendations.

The project reflects a broader push in agriculture toward digital decision tools that use environmental data to guide crop management. In viticulture, where planting decisions can affect a vineyard for decades, even small improvements in matching plant material to site conditions can have lasting effects on yield stability and vine health.

The authors say the goal is to support better-informed choices at the planning stage, when selecting a rootstock can determine how well a vineyard handles stress later on.