Table 6 Variance analysis of missed seeding index of regression equation.

From: Parameter optimization of key components in seed-metering device for pre-cut seed stems of Pennisetum hydridum

Source of variance

Sum of squares

Degrees of freedom

Mean square

F

P

Model

12.64

6

2.11

5.37

0.0033

A

1.37

1

1.37

3.50

0.0798

B

2.72

1

2.72

6.94

0.0180

C

3.16

1

3.16

8.07

0.0118

AB

2.69

1

2.69

6.86

0.0186

AC

0.0264

1

0.0264

0.0674

0.7984

BC

2.67

1

2.67

6.80

0.0190

A2

0.0747

1

0.0747

0.1736

0.6837

B2

0.1182

1

0.1182

0.2747

0.6090

C2

0.4945

1

0.4945

1.15

0.3033

Residual

6.27

16

0.3922

  

Lack of fit

3.34

8

0.4169

1.13

0.4312

Pure error

2.94

8

0.3674

  

Total

18.92

22

   
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