Table 2.

Model equations for estimating seedling number (SN) of different leaf ages using coverage degree and angular points

Varieties	La	Models	R2	Adjusted-R2	RMSE	Rep (%)
YM23	1	SN1 = 0.47 × Ha + 119.37 × Co + 5.65	0.9867	0.9864	10.31	7.72
	2	SN2 = 0.22 × Ha + 58.64 × Co + 18.43	0.9781	0.9775	12.16	8.79
	3	SN3 = 0.15 × Ha + 37.65 × Co + 14.73	0.9706	0.9698	12.98	8.91
HM7	1	SN1 = 0.41 × Ha + 97.13 × Co + 11.37	0.9765	0.9759	11.86	9.22
	2	SN2 = 0.19 × Ha + 43.93 × Co + 6.94	0.9611	0.9601	13.13	10.63
	3	SN3 = 0.13 × Ha + 31.05 × Co + 17.72	0.9508	0.9495	17.32	12.49
YF4	1	SN1 = 0.52 × Ha + 125.21 × Co + 2.71	0.9806	0.9801	9.67	8.12
	2	SN2 = 0.25 × Ha + 59.35 × Co + 6.21	0.9713	0.9705	12.59	9.19
	3	SN3 = 0.16 × Ha + 39.11 × Co + 11.51	0.9549	0.9537	16.39	11.31