Table 4 Observed and simulated values for days to anthesis, days to maturity and grain yield at harvest during model calibration using historic weather

HWAMS

 Observed (t ha⁻¹)

5.7

5.4

5.2

7.3

7.2

 Simulated (t ha⁻¹)

5.7

5.4

5.2

6.9

7.4

 Error %

− 0.1

− 0.8

− 1.0

− 6.1

2.6

 R²

1

0.98

1

1

1

 RMSE (t ha⁻¹)

0.07

0.24

0.24

0.26

0.24

 nRMSE (%)

1.14

3.90

3.90

4.22

3.90

 d-Stat

1

0.98

0.79

0.84

0.69

ADATS

 Observed (days)

82

75

72

72

78

 Simulated (days)

87

82

83

78

82

 Error %

5.7

8.5

13.3

7.7

4.9

 R²

0.94

0.92

0.87

0.96

0.86

 RMSE (days)

7.07

6.52

6.5

6.49

7.07

 nRMSE (%)

9.3

8.6

8.6

8.6

9.3

 d-Stat

0.9

0.75

0.8

0.82

0.81

MDATS

 Observed (days)

133

134

147

134

150

 Simulated (days)

136

138

155

144

154

 Error %

2.2

2.9

5.2

6.9

2.6

 R²

0.89

0.87

0.98

0.87

1

 RMSE (days)

7.07

9.7

7.03

2.56

9.31

 nRMSE (%)

5.1

6.9

5.0

1.8

6.7

 d-Stat

0.78

0.65

0.92

0.74

0.81