Characterization of fungus resistant grape varieties and candidate varieties in Pecs area


Cziskasz, A.K.; Kozma, P.

Acta Horticulturae 603: 763-765

2003


Under field conditions in the southwest side of Hungary (Pecs area) we studied 74 fungus-resistant grape cultivars. In the tables and figure we summarize some results of our observations during the last five years.

Characterization
of
Fungus
Resistant
Grape
Varieties
and
Candidate
Varieties
in
Pecs
Area
Anna
Krizsics
Csikasz
Pal
Kozma
jr.
Research
Institute
for
Viticulture
and
Enology,
Pecs
H-7634.
Pecs,
Pazmany
P.
u.
4.
Keywords:
resistant
grape
varieties,
Vitis
vinifera
x
Vitis
amurensis,
Franco-American
hybrids,
resistance
of
leaves
and
bunches.
Abstract
Under
field
conditions
of
south-west
side
of
Hungary
(Pecs
area)
we
studied
74
fungus
resistant
grape
varieties.
In
the
tables
and
figure
we
are
summaries
some
results
of
our
last-
five-
year
observations.
INTRODUCTION
Protection
of
our
environment,
and
thus
carrying
out
environment
friendly
grape
cultivation,
is
a
great
challenge
of
our
days.
In
order
to
realise
this
aim:
cultivation
of
resistant
varieties
is
also
a
possibility
in
addition
to
the
spread
of
integrated
technologies.
Increasing
costs
of
plant
protection
because
of
appearance
of
resistance
against
effective
agent
and
limited
effectiveness
of
chemicals
against Grey
rot
also
creates
a
need
for
resistant
varieties.
MATERIAL
AND
METHODS
Field
observation
of
resistant
varieties
in
our
institute
has
been
going
on
for
15
years,
abandoning
chemical
plant
protection
means
completely.
In
our
area
the
greatest
problems
are
Powdery
mildew
and
Grey
rot
among
fungal
pathogens
depending
on
the
year
(e.g.
summer
hails).
In
the
plantation
for
the
time
being
we
are
observing
74
varieties
or
promising
hybrids
originated
from
the
main
breeding
works
of
the
world
and
Hungarien
varieties
too.
They
are
progenies
of
Vitis
vinifera
x
Vitis
amurensis
or
Franco-
American
hybrids.
Each
variety
is
represented
with
10
vine-stocks
in
2,0
x
1,0
m
space,
with
midhigh
cordon
training
system.
Extreme
weather
conditions
of
last
five
years
(1997-2001.)
created
possibility
observation
of
resistance
of
varieties
and
candidate
varieties
under
favourable
conditions
for
pathogens.
Among
examined
years
1997.,
1998.,
1999.
summers
were
rainy
and
hot,
so
it
was
made
favourable
terms
for
all
fungi-diseases.
2000.year
was
hot
and
droughty,
there
were
not
plant-protection
problems.
2001.
weather
was
changeable
and
in
summer
relative
humidity
was
high,
it
was
favourable
for
infection
of
Powdery
mildew.
We
had
got
in
that
summer
hail
and
September
was
rainy,
so
Grey
rot
(Botrytis
cinerea)
damaged
bunches
too.
Degree
of
infection
were
evaluated
both
on
leaves
and
bunches,
separately.
Evaluation
of
resistance
against diseases
was
made
according
to
international
method
(
OIV
code
N
°
452,
N
°
455,
N
°
459,
N
°
476
).
RESULTS
AND
DISCUSSION
On
the
basis
of
our
comparative
examinations
we
can
state,
that
between
resistance
of
leaves
and
bunches
there
is
no
close
connection,
and
even,
in
some
cases
there
is
a
great
difference
between
them
(
Table
1.).
A
part
of
resistant
hybrids
can
endure
without
spraying
under
low
or
medium
pressure
of
infection.
In
the
case
of
medium
or
low
resistance,
chemical
protection
is
advised
in
a
suspected
year
of
epidemic
in
the
interest
of
the
protecting
quality
and
quantity
of
the
yield
(
Figure
1.).
Resistant
varieties
can
endure
with
a
maximum
of
3-4
spraying
a
year
compared
to
the
8-9
sprayings
in
the
case
of
Vitis
vinifera.
The
agents
being
used
are
also
less
harmful
to
the
environment.
Proc.
VIII'
IC
on
Grape
Eds:
E.
Hajdu
&
E.Borbas
Acta
Hort
603,
ISHS
2003
763
Literature
Cited
Kozma
P.,
Sz.Nagy,
L.,
Sesztakne
Urbanyi,
M.
(1986):
Nehany
uj
interspecifikus
hibrid
szolo
fajtajeloltunk
tennesztesi
erteke.
Kerteszeti
Egyetem
Kozlemenyei,
Budapest
(49)
17:
23-29.p.
Diofasi,
L.,
Selley,
T.
(1995):
Tokemfivelesmod
kiserletek
eredmenyei
Bianca
szolofajtan
Pecsett.
Uj
Kertgazdasag
4:
15-23.p.
Kozma,
P.
jr.
(1999):
Breeding
of
Grape
Varieties
Resistant
to
Fungus
Diseases
in
Hungary.
Hungarian
Agricultural
Research.
December
1999.
10-13.p.
Tables
Table
1.
Grape
variety
Degree
of
resistance
Origin
Downy
mildew
Powdery
mildew
Grey
rot
Roter
brenner
leaf
bunch
leaf
bunch
1.
2.
3.
4.
5.
6.
7.
8.
Amadeus
28/19
x
Chardonnay
8
8
6
7-8
8
6-7
Korai
bibor
4/15
x
Irsai
Oliver
8
8
3
9
8
6-7
Orpheus
17/2
x
Irsai
Oliver
7
8
3
6
8
6-7
Pannon
frankos
17/2
x
Irsai
Oliver
8
7
2
2-3
8
6-7
Bianca
SV
12
375
x
Bouvier
7-8
8-9
9
5
8
3
Csillam
SV
12
375
x
Csabagyongye
5
8
3
9
8
1
Duna
gy8ngye
Seibel
4986
x
3
7
8
9
5
4-5
Csabagyongye
Sirius Bacchus
x
SV
12
375
5
6
8
4
8
3
Vikt6ria
gyongye
SV
12
375
x
Csabagyongye
5
3
4
8
4
Demetra
SV
23
657
x
Aleatiko
7
6
9
7-8
8
3
III
50-79
SV
12
375
x
Aleatiko
5
8
8 8 8
4
XIV
1-27
SV
12
375
x
Pinot
gris
6
8
9
7-8
-
3
XX
14-64
SV
23
657
x
Korai
piros
7 7
8
6
8
3
veltelini
764
yield
grape
juice
sugar
content
kg/m
2
3
-
2,5
-
KI
0
-
25
-
20
-
10
-
5
0
1,5
-
0,5
-
0
2
-
-
15
1
2.
3.
4.
5.
6.
7
8.
9.
10. 11. 12. 13.
Fig.
1.
Harvest
results
of
fungus
resistant
varieties
in
Pecs,
1997
-
2001.
1.
Amadeus
2.
Korai
bibor
3.
Orpheus
4.
Pannon
frankos
5.
Bianca
(kontroll)
6.
Csillam
7.
Duna
gyongye
8.
Sirius
9.
Viktoria
gyongye
10.
Demetra
11.
III
50-79
12.
XIV
1-27
13.
XX
14-64
765