Table 2. Statistics regarding the estimation error of the spikelet number per panicle.

Panicle varieties	Error range/%	20% test			Calibration curves test
		Area/%	TLPB2(image)/%	TLPB2/%(manual)	Area/%	TLPB2/%
A	5	88.89	55.56	57.89	82.76	54.02
	10	100	72.22	84.21	100	80.46
B	5	82.86	68.57	71.43	84.80	67.25
	10	100	100	95.24	98.25	93.57
C	5	59.52	42.86	78.05	72.08	51.27
	10	97.62	88.10	90.24	97.46	82.23
D	5	60.61	39.39	57.50	69.23	40.66
	10	96.97	78.79	87.50	93.96	73.08
E	5	57.50	35	48.78	65.46	34.54
	10	90	65	68.29	93.30	61.34
F	5	82.50	60	60.98	84.54	57.22
	10	100	90	85.37	98.45	85.05

Error range: sample number (error less than 5% or 10%) divided by the total number of examined samples for each variety.