A
list
of
tomato
patterns
with
highest
resistance
to
P
.
infestans,
natural
infestation
in
the
Mytichi
(Moscow
Region)
follows:
L
hirsutum
(5041)*
L
pimpinellifolium
(3731)
West
Virginia
181
-
1
-
6
-
21
West
Virginia
139
-
1
-
2
-
1
-
1
-
1
West
Virginia
700
West
Virginia
63
Ottawa
30
(3919)
Hessoline,
France
Heline,
France
Juno
(3215)
Droplet
(4316)
1
.
132,
Moldova
1
.
342,
Moldova
BU
-
13,
Belarus
*
Number
in
VIR
catalogue,
S
.
Petersburg,
Russia
.
Tomato
Genotypes
Resistant
to
Phytophthora
infestans
and
Phytophthora
.
capsici
Bagirova,
S
.
F
.
1
,
Gorshkova,
N
.
S
.
,
Inatova,
S
.
I
.
2
'Dept
Mycol
&
Algol
.
,
MoscowState
University,
Moscow
119899
2
Scientific
Institute
of
Vegetable
Crops,
Mytichi,
Moscow
Region
Mechanisms
of
pathogenesis
of
Phytophthora
capsici
and
P
.
infestans
are
known
to
be
different
Phytophthora
capsici
produces
great
amount
of
maceric
enzymes,
causing
soft
root
of
host
-
plant
tissue
.
P
.
infestans
cause
dry
root
.
A
screening
of
tomato
collection
(68
genotypes)
in
detached
fruits
bio
-
assay
was
performed
to
select
resistant
forms
to
both
P
.
infestans
and
P
.
capsici
.
Fruits
were
inoculated
with
zoospore
suspension
6000
zoospore,
per
ml
.
The
results
indicated
slight
differences
in
tomato
resistance
to
these
pathogens
(Table
1)
.
L
.
peruvianum
(2020)
L
.
peruvianum
v
.
dentatum
(3963)
L
.
Humboldtii
(2884)
L
.
Humboldtii
(2884)
x
L
Humboldtii
(353)
Vishnevidny
(342)
L
.
pimpinellifolium
(3731)
L
.
pimpinellifolium
(3990)
CRA
-
66
F2
(Xachmasskiy
18
i
x
L
.
Humboldtii
(35312)
*
Number
in
VIR
catalogue,
S
.
Petersburg,
Russia
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