Genetic Parameters for Determining Useful Parents in Mungbean (Vigna radiata (L.) Wilczek) Breeding for Early Maturity, Small Seed Size, and High Seed Yield
Table 3
Means squares for combining ability and genetic components of variance in 5 × 5 parent complete diallel of mungbean.
Source of variation
df.
Mean squares
∑ cluster
∑ branches
Plant height
∑ pods/plant
Pod length
Days to maturity
Seed yield per plant
100-seed weight
GCA
4
6.37
0.60
533.42
82.99
0.58 ns
22.42
8.73
7.70
SCA
10
0.44
0.08
36.92
13.63
0.47
3.75
3.09
0.14 ns
Reciprocal
10
0.03 ns
0.03 ns
6.55 ns
0.64 ns
0.04 ns
2.24 ns
0.30 ns
0.07 ns
Error
48
0.09
0.03
3.49
1.23
0.04
1.51
0.24
0.11
Estimates of variance components
σ2 gca
0.59
0.05
49.81
6.99
0.01
1.88
0.58
0.76
σ2 sca
0.20
0.03
19.90
7.38
0.25
1.33
1.70
0.02
σ2 reciprocal
0.00
0.00
1.53
0.00
0.00
0.37
0.03
0.00
σ2 gca/σ2 sca
2.94
1.74
2.50
0.95
0.05
1.41
0.34
34.2
(2σ2 gca)/(2σ2 gca + σ2 sca)
0.85
0.78
0.83
0.65
0.10
0.73
0.40
0.98
Estimates of genetic variance components
VA
1.19
0.10
99.62
13.99
0.05
3.76
1.15
1.51
VD
0.20
0.03
19.90
7.38
1.02
1.33
1.70
0.02
H2-narrow sense
0.80
0.64
0.81
0.62
0.05
0.57
0.37
0.92
H2-broad sense
0.94
0.82
0.97
0.95
0.96
0.77
0.92
0.94
Dominance ratio
0.58
0.76
0.63
1.03
6.14
0.84
1.72
0.17
Symbols and are significant at 5 and 1% level of probability; ns: nonsignificant.
