French fruit and wine growing up against the climatic change. Bethsabée Gleizer. Ctifl. Workshop Viticulture et Climat. 20/10/2005. Épernay.

1. French Fruit and Wine
ench uit
growing up against
the climatic change
Bethsabée GLEIZER, Ctifl
B. Gleizer - Workshop Viticulture et Climat – 20 octobre 2005 – Épernay

2. Initial diagnosis
The global warming will not be without effects on the
fruit-bearing and wine productions
Agronomical and physiological: advanced of the
flowering period, shortening of the growing season, necrosis or
drop of the flower buds, ...
d
f h fl
b d
PhytoPhyto-sanitary : emerging diseases and pests (or today
secondaries but whose their development could become
alarming), …
Ecological : Higher water requirements ...
requirements,
Economic : spring frost, qualitative losses (sunburn,
splitting, ...)
…
B. Gleizer - Workshop Viticulture et Climat – 20 octobre 2005 – Épernay

3. A network of partner
In order to answer the justified
interrogations of our organizations a group
organizations,
of 6 partners was formed and assembled a
project (first call to project of the ADAR
j t (fi t ll t
j t f th
agency).
Development of the project over two years
as from September 1, 2005.
1 2005
B. Gleizer - Workshop Viticulture et Climat – 20 octobre 2005 – Épernay

4. Objectives
Analyze and comparison of the current and last
situation of the phenologic and climatic evolutions
On the basis of probable climatic scenario
(MétéoFrance model), modeling of the phenologic
(Mé é F
d l)
d li
f h h l i
and climatic future trend (more or less long term)
Heighten and inform the profession by a dedicated
Internet site providing information and councils
related to the climatic change (adjustment of the
pruning time, ...).
B. Gleizer - Workshop Viticulture et Climat – 20 octobre 2005 – Épernay

5. Program of work
Sub-group " Observatory "
Orchards and vines of reference : allows to have data
on the phenologic evolutions (common knowledge)
Tests f
T t of sensitivity in climatic rooms : refine our
iti it i li ti
fi
knowledge on the frost critical level of various species and
varieties, underline the phenomenon of natural resistance of the
plants to freezing, establish the climatic determinism of the drop
and necrose buds and/or flowers to peach ant apricot tree)
Extreme climatic events : discover if there is a
geographical evolution of these phenomena
B. Gleizer - Workshop Viticulture et Climat – 20 octobre 2005 – Épernay

6. Program of work
Sub-group " Modelling "
Modelling and staggering the time of
leafing and flowering period (fruit
growing) and dates of vintage (vine
growing) : F
Forecast th evolutions of the dates of
t the
l ti
f th d t
f
vintage and the time of leafing and flowering period,
in the future, starting from the models of the climatic
future
evolution (with different climatic scenarios).
Frost forecasts : Adaptation of the forecasting
model (localised in Moyenne-Garonne area) to other
French areas: Loire Valley and South-Est
y
B. Gleizer - Workshop Viticulture et Climat – 20 octobre 2005 – Épernay

7. Sub-group " Knowledge
Dissemination "
Valorization of all the work undertaken by the
whole of the partners.
partners
Organization in the form of "website of
information" treating of the CC for fruit and vine
i f
i "
i
f h
f f i d i
growing gathering in the same space : technical
k f
il f
work, references, councils, forecasts, ...
Diffusion of our results during information days
and publications in the agricultural press
B. Gleizer - Workshop Viticulture et Climat – 20 octobre 2005 – Épernay

8. Outlines
Climatic forecast is a particulary difficult exercise.
Nevertheless we hope for an analysis of the
p
y
physiological impacts of the climatic change on the
fruit and wine productions, like their agronomic and
economic consequences.
i
This critical analysis will offer a global solution multicrop on the prevention of the climatic risks.
risks
The circulation of knowledge to the professionals, will
allow in particular the adaptation of the growing
strategies.
Perpetuation of this service (
p
(Internet site and update of
p
information) beyond the 2 years of the project.
B. Gleizer - Workshop Viticulture et Climat – 20 octobre 2005 – Épernay