P l a n t m a t e r i a l a n d
i n o c u l a t i o n : Measurements were conducted on
grapevine leaves (V. vinifera L. 'Riesling') grown in a
greenhouse. The different irrigation treatments were imposed
prior to the start of the experiment. The treatments
were: (a) control: irrigated and non-inoculated vines; (b)
irrigated and inoculated vines; (c) non-irrigated and inoculated
vines; (d): non-irrigated and non-inoculated vines.
Watering was applied either every day or withheld during
the entire experiment. The temperature in the greenhouse
was set to 25 oC for daytime and 18 oC for night-time. Relative
humidity and radiation were not controlled and no additional
lighting was provided.