Defoliation of the vines before or after berry set: Physiological consequences and qualitative factors
oleh: Thibaut Verdenal, Vivian Zufferey, Agnès Dienes-Nagy, Gilles Bourdin, Katia Gindro, Jean-Laurent Spring
| Format: | Article |
|---|---|
| Diterbitkan: | International Viticulture and Enology Society 2019-10-01 |
Deskripsi
Defoliation of the vines consists of eliminating the leaves in the grape bunch zone in a more or less intensive manner. It is a long-proven prophylactic technique that has seen a renewed interest in the current context of the reduction of phytosanitary inputs. However, several questions remain. Which is the optimal period? What is the ideal intensity? What are the risks? Is the mechanization of this process a feasible option? Agroscope has been undertaking defoliation trials in Switzerland since 2010 in order to shed light on these questions.