Table 4. Effect of fertilization concentration on height, root collar diameter and H/D and ratio of Koelreuteria paniculata container seedlings.

Container type	Fertilization concentration (gㆍL⁻¹)	Height		Root collar diameter		H/D ratio (cmㆍmm⁻¹)
Container type	Fertilization concentration (gㆍL⁻¹)	Growth (cm)	Relative growth rate (cmㆍday⁻¹)	Growth (cm)	Relative growth rate (cmㆍday⁻¹)	H/D ratio (cmㆍmm⁻¹)
KK-SI500 (15-cell)	0	6.26±1.39^g	0.043±0.013^e	2.81±0.41^f	0.021±0.006^ef	2.26±0.57^e
	1	10.07±3.05^e	0.064±0.031^d	3.33±0.66^de	0.023±0.010^ef	3.02±0.65^d
	2	10.63±4.14d^e	0.066±0.038^d	3.13±0.75^ef	0.022±0.010^ef	3.38±0.90^cd
	3	11.48±4.96^de	0.067±0.045^d	3.05±0.58^ef	0.020±0.010^f	3.68±1.02^bc
KCNR-SI810 (12-cell)	0	7.11±2.48^fg	0.051±0.018^de	3.15±0.60^ef	0.025±0.005^de	2.22±0.44^e
	1	13.25±4.97^cd	0.092±0.038^c	3.87±0.92^c	0.030±0.009^cd	3.37±0.73^cd
	2	14.48±6.38^bc	0.101±0.048^bc	3.72±1.06^cd	0.029±0.010^cd	3.82±0.92^b
	3	15.34±7.41^bc	0.110±0.053^bc	3.67±0.87^c	0.031±0.009^cd	3.85±0.95^b
KCNR-SI1300 (6-cell)	0	9.24±3.16^ef	0.067±0.024^d	3.55±0.64^cd	0.028±0.005^cd	2.57±0.59^e
	1	16.08±6.74^b	0.116±0.049^bc	4.41±0.93^b	0.035±0.007^b	3.58±1.09^bc
	2	21.35±8.65^a	0.161±0.066^a	5.25±1.20^a	0.041±0.008^a	3.99±1.09^a
	3	22.60±9.15^a	0.149±0.066^a	5.17±1.04^a	0.041±0.011^a	4.30±1.18^ab
Container type		2517.317^***	0.128^***	96.257^***	0.006^***	11.754^***
Fertilization concentration		1687.563^***	0.86^***	16.867^***	0.001^***	53.814^***
Container type ^* Fertilization concentration		187.599^***	0.10^***	6.19^***	0.12^***	0.935^ns