Analysis of Direct and Indirect Selection and Indices in Bread Wheat (Triticum aestivum L.) Segregating Progeny
Table 6
Selection gain estimates (GS%) obtained from selection-based index in different bread wheat traits.
Indices
GS (%)
Total
CHL
HD
FLA
PH
SN
TKW
SW
GN
BIO
GY
HI
Smith & Hazel
1.95 (0.85)
0.97 (1.23)
−0.93 (−0.17)
8.74 (5.68)
4.28 (19.65)
9.53 (3.57)
10.20 (70.02)
−8.04 (−1.97)
13.60 (158.63)
3.94 (16.59)
−7.30 (−2.64)
36.93
Mulamba & Mock
−2.71 (−1.18)
0.03 (0.04)
−0.02 (−0.00)
4.05 (2.63)
−1.60 (−7.35)
2.08 (0.78)
−2.35 (−16.11)
1.50 (0.37)
−0.58 (−6.77)
1.56 (6.57)
1.78 (0.65)
3.74
Williams
−0.43 (−0.19)
1.56 (1.98)
−0.37 (−0.07)
5.71 (3.71)
0.85 (3.91)
8.44 (3.17)
12.43 (85.35)
0.00 (0.00)
14.78 (172.43)
6.27 (26.41)
−6.40 (−2.32)
42.86
Subandi
−1.37 (−0.60)
0.78 (0.99)
0.06 (0.01)
3.27 (2.12)
−9.31 (−42.75)
4.62 (1.73)
−3.18 (−21.85)
2.53 (0.62)
−1.10 (−12.84)
−3.08 (−12.99)
−2.58 (−0.93)
−9.37
Elston
−2.07 (−0.90)
0.69 (0.87)
−1.48 (−0.27)
−0.95 (−0.62)
−6.49 (−29.82)
3.40 (1.27)
−1.38 (−9.45)
4.37 (1.07)
−2.47 (−28.84)
0.20 (0.85)
2.10 (0.76)
−4.08
Pesek & Baker
2.23 (0.97)
0.78 (0.99)
4.38 (0.81)
−5.11 (−3.32)
0.33 (1.51)
5.88 (2.21)
8.72 (59.89)
−0.31 (−0.08)
7.91 (92.23)
5.42 (22.83)
−2.76 (−1.00)
27.46
Cruz
−1.46 (−0.64)
0.95 (1.20)
2.24 (0.42)
0.15 (0.10)
−7.99 (−36.69)
3.82 (1.43)
3.63 (24.95)
10.49 (2.57)
1.59 (18.50)
5.76 (24.27)
2.88 (1.04)
22.07
CHL: chlorophyll content (Spad), HD: heading date (days), FLA: flag leaf area (cm2), PH: plant height (cm), SN: number of spikes, TKW: 1000-kernel weight (g), SW: spikes weight (g m−2), GN: number of grains per spike, BIO: above ground biomass (g m−2), GY: grain yield (g m−2), and HI: harvest index (%); and values between parentheses correspond to the genetic gain in terms of percent mean for yield and yield-related traits.