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

Table 1

Equations and parameter values of organ expansion in Apr-May.

Equation	Dependent variables (y)	Independent variables (x)	Parameter value				R^2
			a	b	k
	LL	GDD	26.30	4.21	0.025		0.983
	LW	GDD	31.78	5.38	0.029		0.980
	PD	GDD	7.91	2.61	0.003		0.915
	ID	GDD	8.13	2.81	0.039		0.951
			A1	A2	x0	dx
	PL	GDD	−8.01	32.17	67.08	47.69	0.989
	IL	GDD	−4.09	11.69	20.62	48.84	0.862
	LDW	GDD	−0.09	1.91	90.04	33.05	0.958
	PDW	GDD	−0.04	0.68	124.9	41.35	0.974