Mathematical Problems in Engineering

Research Article

[Retracted] Quantitative Evaluation of Leaf Morphology with Different Rice Genotypes Based on Image Processing

Table 1

Morphological characteristics of leaves of TQ and YIL18 at three growth stages obtained by image processing technology and manual measurement.


Growth stage	Cultivar	Measurement method	Flag leaf
			Leaf length			Leaf width			Leaf area
			Mean (cm)	SD (cm)	value	Mean (cm)	SD (cm)	value	Mean (cm²)	SD (cm²)	value

BS	TQ		—			—			—
	YIL18
HS	TQ	Image	21.25	3.10	0.265	1.25	0.11	0.305	19.56	4.28	0.928
		Manual	22.30	4.04		1.28	0.10		19.77	4.34
	YIL18	Image	17.90	3.22	0.210	0.85	0.09	0.088	12.97	2.99	0.581
		Manual	19.20	2.32		1.08	0.13		13.68	3.38
FS	TQ	Image	24.03	4.22	0.073	1.30	0.15	0.339	20.04	6.39	0.253
		Manual	25.15	4.03		1.34	0.17		21.93	6.53
	YIL18	Image	17.93	2.51	0.149	1.09	0.13	0.296	16.07	3.88	0.777
		Manual	19.68	2.69		1.18	0.11		16.26	3.69

Growth stage	Cultivar	Measurement method	Secondary leaf
			Leaf length			Leaf width			Leaf area
			Mean (cm)	SD (cm)	value	Mean (cm)	SD (cm)	value	Mean (cm²)	SD (cm²)	value

BS	TQ		—			—			—
	YIL18
HS	TQ	Image	28.99	4.01	0.165	1.03	0.11	0.464	24.82	3.95	0.416
		Manual	30.84	4.42		1.12	0.10		25.94	4.50
	YIL18	Image	22.26	3.87	0.148	0.89	0.08	0.896	11.36	3.77	0.120
		Manual	23.11	4.55		0.93	0.10		12.85	4.05
FS	TQ	Image	33.59	7.63	0.546	1.10	0.14	0.431	28.73	6.55	0.132
		Manual	34.18	7.47		1.15	0.13		30.23	7.54
	YIL18	Image	25.48	5.94	0.248	0.91	0.06	0.635	18.09	5.49	0.413
		Manual	26.10	5.48		0.97	0.10		18.94	5.74

Growth stage	Cultivar	Measurement method	Other leaves
			Leaf length			Leaf width			Leaf area
			Mean (cm)	SD (cm)	value	Mean (cm)	SD (cm)	value	Mean (cm²)	SD (cm²)	value

BS	TQ	Image	25.93	10.52	0.574	0.71	0.11	0.321	11.94	6.36	0.367
		Manual	26.74	10.93		0.80	0.16		12.83	6.89
	YIL18	Image	14.24	5.37	0.412	0.62	0.15	0.795	6.59	3.48	0.080
		Manual	14.77	5.21		0.66	0.13		7.17	3.51
HS	TQ	Image	35.12	5.87	0.298	0.82	0.09	0.674	22.81	6.84	0.895
		Manual	36.34	6.65		0.87	0.10		23.06	7.16
	YIL18	Image	23.79	5.84	0.132	0.74	0.31	0.486	11.03	3.29	0.764
		Manual	24.62	5.75		0.80	0.30		11.79	3.86
FS	TQ	Image	37.11	6.64	0.646	0.82	0.14	0.874	24.51	6.12	0.445
		Manual	37.70	6.68		0.89	0.12		25.26	7.61
	YIL18	Image	26.48	5.12	0.365	0.76	0.13	0.187	15.52	5.78	0.318
		Manual	27.30	5.79		0.83	0.15		16.29	5.69

Here, BS refers to booting stage, HS refers to heading stage, and FS refers to grain filling stage, while SD means standard deviation.