Table
1
.
Crossing
over
frequency
in
the
segments
ful
-
e
,
hl
-
a
at
high
-
(
)
and
low
heterosis
(
¯
)
hybrids
F
1
of
tomato
under
extreme
and
optimum
conditions
of
cultivation
.
ful
–
e
(chromosome
4)
hl
–
a
(chromosome
11)
Hybrids
F
1
:
Mo628
(P
1
)
with
two
varieties
and
wild
species
(P
2
)
No
F
2
Control
Treatment
rf
No
F
2
Control
Treatment
rf
Breakaday
(
¯
)
1784
34
.
22
+
1
.
44
37
.
17
+1
.
80
2
.
95
1245
17
.
61
+1
.
01
22
.
60
+1
.
38
4
.
99**
Nevsky
(
)
971
32
.
38
+
1
.
89
37
.
28
+1
.
79
4
.
90
1265
18
.
21
+1
.
40
26
.
31
+1
.
48
8
.
10***
L
.
rasemigerum
(
)
1006
34
.
17
+
1
.
92
38
.
12
+2
.
63
3
.
95
603
17
.
03
+1
.
32
25
.
05
+2
.
09
8
.
02**
L
.
cheesmanii
(
¯
)
810
30
.
53
+2
.
01
35
.
92
+1
.
94
5
.
39
1038
15
.
39
+1
.
40
20
.
43
+1
.
43
5
.
04*
Note:
*,
**,
***
-
rf
under
the
treatment
significantly
differs
from
that
of
control
at
P
<
0
.
05,
0
.
01,
and
0
.
001,
respectively
.
