Climate change and vegetative growth development of grapevine from 1958 to 2008 | Evolution climatique et phénologie de la vigne de 1958 à nos jours
2009
Bloesch, B. | Viret, O. | Fabre, A.-L. | Spring, J.-L., Agroscope Changins-Waedenswil (ACW), Nyon (Switzerland)
The increasing temperatures observed during the latter years did influence the vegetative development of grapevine. Since 1958, different development stages of Chasselas vine have been observed at Agroscope ACW Changins site and related to the climate change and its incidence on the vegetation period. The early stages, from budbreak (BBCH 09) to initiation of flowering (BBCH 51) do not show any precocity tendency related to the temperature increase, while flowering (BBCH 65), fruit maturation and grape harvest (BBCH 89), were in average about ten days earlier during the last years, reducing thus considerably the vegetation period.When considering a longer period of time, such phenomena proved to be happening already in the past.
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