Resistant varieties

Varieties with pyramided resistance to downy mildew

These varieties combine multiple resistance factors to downy mildew and powdery mildew. Gene pyramiding (i.e., stacking multiple resistance genes against a single disease in one variety) is one of the main strategies available to breeders to enhance the durability of resistance.

This stacking comes at the cost of longer breeding efforts. It was initiated in the early 2000s by INRAE and IFV under the ResDur program.

The first four pyramided varieties developed through this program—Artaban, Floreal, Voltis, and Vidoc—have been available and listed in the national catalogue since 2018. These efforts continue today with the development of next-generation resistant varieties combining three resistance factors, and the selection of regionally typical resistant varieties (as part of the Newvine program led by IFV).