Agronomic selection represents, with the sanitary selection, the other elements of the clonal selection. It is an compulsory stage, coordinated by ENTAV and achieved by the various regional partners. They set up and provide the monitoring of the experimental plots according to specific objectives. These objectives are double:

• To evaluate the technological potential of the clones before their possible certification.
• To specify the agronomic and qualitative characteristics for those which are certified.
  
  Clone Head
  1 clone / pot
  Data collection:
  

Clones from repositories or test fields are planted and monitored in experimental plots with a view to their future certification. Only clones which have passed the sanitary tests for Fan Leaf and Leaf Roll are introduced following a very strict procedure.
	Implantation conditions : Traditional cultivation zone for the variety, homogeneity, control clones, maximum number of clones: 20. Viticultural monitoring : minimum 5 years to evaluate the viticultural characteristics and select the clones for vinification purposes. Vinification and tasting : minimum 3 years, to evaluate the technological and organoleptic characteristics.

Certification by the CTPS on two conditions : sanitary and qualitative.

Certified clones are studied in experimental plots with a view to compare their cultural characteristics plus their technological and organoleptic qualities in relation to their environment (soil, climate, rootstock...) and the production conditions of a given site or studied area.

Implantation conditions : number of clones limited to 15, block planted, 6 repetitions of 10 plants minimum. Viticultural monitoring, vinification analysis of the constituent elements for wine making and wine tasting. Comparison of clones, establishment of their technological and organoleptic characteristic, Adaptation according to the soil and production objectives. User recommendations for growers.