The techniques of pruning  presented last with the title: Champagne MOOC - Webinar #5 - The art of pruning in Champagne 

The pruning techniques used in Champagne have been strictly regulated since 1938. Champagne is the only AOC to have laid down such a precise and comprehensive set of rules for pruning.

Read here the full pesentation:

1. THE VINE GROWTH CYCLE AND TASKS IN THE VINEYARD

https://drive.google.com/file/d/1d9C1J5NBLYyEaqQVoatB9-V7PhXqTc5Q/view?usp=sharing

2. THE VINE

https://drive.google.com/file/d/1kcNxvoS-PG7jHIBb5nfTWv-yOFzDY0Hc/view?usp=sharing

Photo Credit: 

Champagne MOOC