Shoot and Inflorescence Development--Part 2

On May 14, I wrote a blogpost called Modified Eicchorn-Lorenz: Shoot and Inflorescence Development focussing on the first stage of grape vine growth.

At that time, the vines were at the EL 4 to EL 9 stage.

Yesterday, a week later, on May 21, this is what the vines look like:

The above photo shows that the varieties are at this stage:

• Auxerrois: E-L Stage 12--5 leaves separated shoots about 10 cm long; inflorescence clear
• Chenin Blanc: E-L Stage 11--4 leaves separated
• Chardonnay: E-L Stage 12--5 leaves separated shoots about 10 cm long; inflorescence clear
• Cabernet Sauvignon: E-L Stage 9--2 to 3 leaves separated shoots 2-4 cm long
• Cabernet Franc: E-L Stage 11--4 leaves separated
• Barbera: E-L Stage 15--8 leaves separated, shoot elongating rapidly single flowers in compact group

At this point, surprisingly, the Barbera has far surpassed the other varieties in growth stage, the Auxerrois has caught up with the Chardonnay and the Cabernet Sauvignon is still the laggard in this group.
References:
1. Fritz Westover, Grapevine Phenology Revisited, Wines&Vines, March 2018.