What is cane pruning?

Cane pruning is a technique commonly used in viticulture where long bearing units are retained on the vine, allowing for the development of fruitful buds. In this practice, canes from the previous growing season are selected and pruned to maintain a balance between fruit yield and vine health. By leaving long canes, grape growers ensure that a sufficient number of buds are present to produce flowers and consequently fruit in the upcoming season. This method optimizes sunlight exposure and air circulation around the fruiting wood, which is essential for healthy grape development.

In contrast, the other choices either describe different forms of pruning or do not align with the principles of cane pruning. For example, leaving short stubs would be indicative of a pruning style aimed at encouraging vigorous new growth, while removing all wood would eliminate the potential for fruit production altogether. Cutting only at the base of the vine does not utilize the benefits of selecting mature canes that can yield fruit. Thus, the practice of leaving long bearing units is central to cane pruning, making it distinct and beneficial for grapevine management.