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.