Optimal Utilization of Light Energy in Semiclosed Greenhouse Using Three-Dimensional Cucumber Model

Table 3

Characteristic parameters of the organ expansion curve.

	Parameters	y = max		x0, y0
Apr-May	Leaf area	625.95	4.58	92.75, 312.97
	Leaf dry matter	1.91	0.02	90.05, 0.91
	Petiole length	32.17	0.21	67.08 12.08
	Internode length	10.75	0.30	41.92 6.07
	Petiole diameter	7.91	0.04	53.78, 3.95
	Internode diameter	8.13	0.08	26.70, 4.06
Nov-Dec	Leaf area	730.09	6.83	76.58, 365.05
	Leaf dry weight	1.38	0.01	67.73, 0.69
	Petiole length	28.52	0.21	51.72, 10.30
	Internode length	11.33	0.21	26.97, 6.19
	Petiole diameter	7.65	0.04	40.37, 3.82
	Internode diameter	7.69	0.18	7.13, 3.84