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International Journal of Horticulture 2012, Vol.2, No.5, 21
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23
Table 2 Genetic association among twelve different characters in different F
2
populations of okra
Characters
A
B
C
D
E
F
G
H
I
J
K
L
Days to 50%
flowering
BIP F
2
-0.612*
0.015
0.653
0.477
-0.584** -0.230* -0.570* -0.520*
-0.658*
-0.879* -0.784*
SC F
2
-0.567** 0.030
0.334
0.391
-0.498** -0.719
-0.416* 0.228
-0.558*
-0.806* -0.578**
DC F
2
-0.557*
-0.150
0.294
0.491
-0.348
-0.669* -0.333* 0.308
-0.544*
-0.776* -0.711*
Plant height
(cm)
BIP F
2
0.610*
-0.548
0.506
0.799*
0.756** 0.612
-0.653
0.656**
0.567
0.912**
SC F
2
0.511*
0.709** 0.402
0.453
0.651*
-0.312
-0.533
0.552
0.452
0.543**
DC F
2
0.409*
0.800** 0.511
-0.253
0.555*
-0.222
-0.429
0.337
0.391
0.663**
Number of
nodes per
plant
BIP F
2
-0.025
0.203
-0.230
0.789** 0.055
-0.405*
-0.425*
0.312
0.611**
SC F
2
-0.135
0.112
-0.321
0.668*
0.125
-0.315
-0.335*
0.412
0.771
DC F
2
-0.211
0.059
-0.569
0.700*
0.205
-0.391
-0.410*
0.600
0.690
Internodal
length (cm)
BIP F
2
-0.456* -0.453
-0.490* -0.407* 0.345
-0.512
-0.623
-0.396
SC F
2
-0.236
-0.253
-0.443
-0.317
-0.411
-0.551
-0.663
-0.456
DC F
2
-0.312
-0.349
-0.549
-0.299* -0.429
-0.496
-0.771
-0.522*
Stem
diameter
(cm)
BIP F
2
0.543
0.398
0.378
-0.312
0.420
0.301
0.567
SC F
2
0.443
0.418
0.218
-0.422
0.336
0.521
0.327
DC F
2
0.317
0.509
0.321
-0.501
0.466
0.601
0.500
No of
branches per
plant
BIP F
2
0.899** 0.618** -0.783*
0.869*
0.648*
0.916**
SC F
2
0.416*
0.275
-0.768
0.413*
0.626
0.856
DC F
2
0.299*
0.436
-0.367
0.524
0.510*
0.772*
Number of
fruits per
plant
BIP F
2
0.452
-0.513*
0.652*
0.743
0.929**
SC F
2
0.622
-0.463*
-0.493
0.306
0.819**
DC F
2
0.555
-0.861*
-0.667
0.412
0.900**
Fruit length
(cm)
BIP F
2
0.088
0.274
0.545
0.852
SC F
2
0.118
0.324
0.441
0.656*
DC F
2
0.087
0.525
0.509
0.776
Fruit
diameter
(cm)
BIP F
2
-0.611
-0.541
-0.656**
SC F
2
-0.361
-0.601
-0.599**
DC F
2
-0.337
-0.511
-0.701**
Average
fruit weight
(g)
BIP F
2
0.689
0.859**
SC F
2
0.456
0719**
DC F
2
0.617
0.811**
100 seed
weight (g)
BIP F
2
0.871*
SC F
2
0.899*
DC F
2
0.725*
Note: A: Populations; B: Plant height (cm); C: Number of nodes per plant; D: Internodal length (cm); E: Stem diameter (cm); F: No
of branches per plant; G: Number of fruits per plant; H: Fruit length (cm); I: Fruit diameter (cm); J: Average fruit weight (g); K: 100
seed weight (g); L: Fruit yield per plant (g); *: Significant @ 5%; **: Significant @ 1%
Figure 1 Graphs showing the association of number of fruits per plant with other yield related traits in three different F
2
populations
Note: BIP: Biparental progeny; SC: Single cross; DC: Double cross