Table 6: Relative contribution (partial and model ), value, and probability in predicting wheat grain yield by the stepwise procedure analysis under inoculation condition and different water levels.
Step
Variables entered
Variable removed
Partial
Model
value ER
Parameter estimate
Standard error
value
1
—
0.9957
0.9957
<.0001
0.95104
0.01458
<.0001
2
—
0.0012
0.9969
0.0009
−0.99926
0.27170
0.0009
3
—
0.0003
0.9972
0.0809
0.01332
0.00549
0.0212
4
—
0.0003
0.9975
0.0445
−0.00472
0.00225
0.0445
X4: spike weight/plant, X5: grains/spike, X6: grain weight/spike and X8: total chlorophyll content of flag leaf.
: coefficient of determination, value ER: value for entered or removed variables, and value : value for final model.