Table 3 Analysis of variance.

From: Design and experiment of air-suction drum-type seedling seeder for irregular-shaped vegetable seeds

Source of variance

Rebroadcast rate

Square sum (e.g. equation of squares)

(Number of) degrees of freedom (physics)

F-value

P-value

Mould

64.21

9

31.33

< 0.0001**

X1

26.72

1

117.36

< 0.0001**

X2

15.88

1

69.74

< 0.0001**

X3

2.99

1

13.12

0.0047

X1 × 2

2.64

1

11.62

0.0067

X1 × 3

0.08

1

0.3513

0.5665

X2 × 3

0.00

1

0

1

X12

12.64

1

55.51

< 0.0001**

X22

4.60

1

20.22

0.0011

X32

0.36

1

1.59

0.2355

Residual

2.28

10

  

Incoherent

0.34

5

0.18

0.9495

Inaccuracies

1.93

5

  

Aggregate

66.49

19

  
  1. P < 0.01 (highly significant, **), P < 0.05 (significant, *).