Table 3. The effect of drip irrigation treatment level on growth of height and RCD of 4 and 8-year-old Prunus×yedoensis containerized seedlings.

Irrigation treatment (L/year/tree)	Height		Root collar diameter		H/D ratio (m · cm⁻¹)
Irrigation treatment (L/year/tree)	Growth (m)	Relative growth rate (m · day⁻¹)	Growth (cm)	Relative growth rate (cm · day⁻¹)	H/D ratio (m · cm⁻¹)
4-year-old Prunus×yedoensis containerized seedling
232	2.94±0.08b	0.06±0.01b	2.95±0.13b	0.09±0.02b	99.77±5.74a
288	3.18±0.08a	0.11±0.02a	3.33±0.11a	0.14±0.01a	95.40±3.87ab
344	2.98±0.18b	0.07±0.02b	3.26±0.15a	0.13±0.01a	91.36±6.58b
F-value	6.1*	11.6**	12.0**	12.2**	2.7^NS
8-year-old Prunus×yedoensis containerized seedling
360	4.68±0.11a	0.10±0.01b	6.95±0.37a	0.12±0.01b	67.43±3.18a
416	4.83±0.34a	0.13±0.01a	7.25±0.20a	0.17±0.01a	66.63±4.42a
472	4.55±0.26a	0.13±0.01a	6.95±0.38a	0.13±0.02b	65.63±4.79a
F-value	1.56^NS	10.9**	1.4^NS	9.2**	0.2^NS