Table 3 Estimation of the deviation of the spikelet number per square.

From: A method for estimating spikelet number per panicle: Integrating image analysis and a 5-point calibration model

Panicle varieties

TRUE

Area

20% test

TRUE

 

Calibration curves test

TLPB2

TLPB2

TRUE

Area/%

TLPB2/%

(image)

(manual)

A

93.3

92.4

93.3

96.1

96.8

88.7

88.7

90.2

 

−0.96%

0

 

0.73%

 

0

1.69%

B

116.5

115.5

116.3

111.0

110.7

108.8

110.3

110.0

 

0.86%

0.17%

 

0.27%

 

1.38%

1.10%

C

105.9

107.1

105.6

106.1

106.4

112.9

112.9

112.8

 

1.13%

0.28%

 

0.28%

 

0

−0.09%

D

90.0

89.6

90.4

99.2

99.0

89.4

90.6

89.9

 

−0.44%

0.44%

 

−0.20%

 

1.34%

0.56%

E

185.2

185.0

186.8

207.2

212.8

182.3

184.2

186.1

 

−0.11%

0.86%

 

2.70%

 

1.04%

2.08%

F

203.2

203.0

198.2

197.2

204.0

206.4

206.8

206.9

 

−0.10%

−2.46%

 

3.45%

 

0.19%

0.24%

  1. TRUE: The spikelet number per panicle was counted manually and averaged. The other values were estimated and averaged using the corresponding linear regression equations.