Research objectives

Sample number

ζ(˚)

R2

RMSEP

Error/%

Jujube f00

3

52.19

0.9982

0.0224

3.80%

8

66.51

0.9963

0.0346

4.17%

11

88.33

0.9912

0.0437

6.40%

Jujube Orient

3

52.19

0.9056

0.1426

6.23%

8

66.51

0.9223

0.1126

3.32%

11

88.33

0.926

0.3055

8.05%

Apricot f00

2

70.99

0.9862

0.044

3.40%

4

71.28

0.9823

0.0140

4.82%

8

67.91

0.9792

0.0761

5.19%

Apricot Orient

2

70.99

0.9382

0.1021

7.19%

4

71.28

0.8947

0.1519

9.28%

8

67.91

0.8849

0.1831

9.47%