Table 5.
Path coefficient analysis with respect to the effect of four wheat traits on grain yield tested under normal and water stress conditions over 2 years.
| Traits | X1 | X2 | X3 | X4 | Correlation with yield |
|---|---|---|---|---|---|
| Normal | |||||
| SM (X1) | 0.57 | − 0.10 | − 0.18 | 0.12 | 0.38** |
| GS (X2) | − 0.11 | 0.61 | 0.17 | 0.02 | 0.38** |
| TGW (X3) | − 0.09 | 0.11 | 0.42 | − 0.02 | 0.12ns |
| AL (X4) | 0.01 | 0.01 | − 0.01 | 0.12 | 0.18** |
| Water stressed | |||||
| SM (X1) | 0.68 | − 0.21 | − 0.09 | − 0.08 | 0.44** |
| TGW (X2) | − 0.13 | 0.44 | − 0.16 | 0.24 | 0.09ns |
| GS (X3) | − 0.07 | − 0.21 | 0.57 | − 0.08 | 0.28** |
| He (X4) | − 0.02 | 0.08 | − 0.02 | 0.15 | 0.21** |
ns; **Non-significant and significant at 0.01 probability level, respectively.
Bold numbers on diagonal denote direct effects, out diagonal numbers indicate indirect effects of traits.
Significant values are in underline.
AL (cm), awn length; YLD (g/m2), grain yield; SM, spike per m2; TGW (g), thousand-grain weight; GS, grains per spike; He, hectoliter (kg/he).