Chara
nal
varieties
of
tomato
is
increasing,
notably
for
specia
r
or
somebody
to
be
honored,
or
make
reference
to
its
place
or
country
of
origin,
nd/or
to
a
particular
attribute
(on
many
occasions
exaggerated),
like
the
color
.
rk,
59
heirloom
tomatoes
from
North
America
were
grown
in
Valencia,
Spain,
weig
e
fruit,
shape
and
ribbing)
using
IPGRI
descriptors
(1996)
.
tion
was
found
within
each
variety,
probably
as
a
consequence
of
of
variation
among
varieties
was
found
for
the
traits
studied
and,
consequently,
several
Although
mean
fruit
weight
ranged
between
5
g
(Moira)
and
265
g
(Orange
Strawberry),
most
varieties
were
considered
as
small
-
medium
sized
(<100
g)
.
Regarding
fruit
predominant
color,
most
varieties
were
red
-
colored,
although
other
colors,
like
yellow,
orange,
pink,
green,
as
well
as
intermediate
colors,
were
also
present
(Table
1)
.
In
most
varieties,
ripe
fruit
color
was
uniform,
though
variegated
(e
.
g
.
Green
Zebra)
or
bicolor
(e
.
g
.
Regina´s
Bicolor)
varieties
were
also
found
.
In
addition,
variation
among
varieties
was
found
within
each
state
of
the
color
descriptor
.
Thus,
within
red
varieties
we
observed
from
pale
red
(e
.
g
.
Mankin
Plum)
to
dark
red
(e
.
g
.
thosewith
the
adjective
black)
varieties
.
The
same
was
found
in
the
yellow
group:
from
pale
colored
(e
.
g
.
Ivory
Egg
or
White
Queen)
to
golden
yellow
(e
.
g
.
Yellow
Pear)varieties
.
Such
variation
within
the
same
state
of
the
color
descriptor
suggests
the
use
of
methods
that
allow
an
objective
description
of
colors,
like
the
CIE
L*,
a*,
b
color
space
.
This
would
give
more
precise
information
on
the
color
of
each
variety
.
The
most
usual
fruit
shapes
were
flattened
and
rounded,
though
several
elongated,
heart
-
shaped,
squared
and
pyriform
varieties
were
also
found
(Table
1)
.
As
for
fruit
color,
variation
within
a
particular
descriptor
state
was
found
.
Approximately,
one
fourth
of
the
varieties
had
intermediate
-
strong
ribbing
(Table
1),
which
could
even
result
in
fruits
that
looked
as
if
they
were
malformed,
like
in
Purple
Calabash
.
The
other
varieties
showed
weak
or
no
ribbing
.
In
general,
little
variation
was
found
for
the
degree
of
ribbing
among
fruits
from
the
same
variety
.
However,
some
varieties
like
Buckbee´s
New
50
Day
orMikado
yielded
fruits
rangi
ng
from
no
ribbed
to
strongly
ribbed
.
In
these
varieties,
the
stronger
ribbing
was
found
in
fruits
originated
from
fasciated
flowers
.
cterization
of
North
American
heirloom
tomatoes
A
.
Rodríguez
-
Burruezo,
J
.
Prohens,
E
.
Solbes,
P
.
Fernández
de
Córdova,
F
.
Nuez
Centro
de
Conservación
y
Mejora
de
la
Agrodiversidad
Valenciana,
Universidad
Politécnica
de
Valencia,
Camino
de
Vera
14,
46022
Valencia,
Spain
.
The
interest
in
heirloom
or
traditio
lty
markets
and
for
organic
agriculture
(Nuez,
1995)
.
North
America
is
home
to
an
important
array
of
heirloom
varieties
of
tomato
.
Some
of
them
were
introduced
by
European
inmigrants,
while
others
are
the
result
of
the
selection
by
growers,
gardeners
and
local
plant
breeders
interested
in
developing
tomatoes
with
improved
taste
but
also
with
distinctive
traits,
like
unusual
shapes
and
colors
(Male,
1999)
.
Many
of
these
varieties
are
named
after
its
breede
a
In
this
wo
under
greenhouse
conditions
and
were
characterized
by
four
fruit
attributes
(mean
fruit
ht,
predominant
color
of
rip
With
these
data,
the
tomato
varieties
have
been
classified
into
groups
(Table
1)
.
In
general,
low
varia
the
high
degree
of
homozygosis
and
purity
of
these
materials
.
On
the
contrary,
a
high
degree
different
morphotypes
could
be
distinguished
(Table
1)
.
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