Table 3. The root collar diameter (RCD) and height (mean±standard error) of F. rhynchophylla trees according to planting density and year.

Growth	Density (tree ha−1)	2015	2016	2017	2018	2019	2021
RCD (mm)	3,000	11.0±0.4	11.5±0.4	13.6±0.5b	16.8±0.5b	20.9±0.6d	24.9±3.6b
	5,000	11.0±0.3	11.7±0.3	13.8±0.4b	17.2±0.4b	23.0±0.7c	26.6±3.5b
	7,000	11.1±0.3	12.5±0.4	15.2±0.5a	19.3±0.6a	27.3±0.8a	33.1±4.5a
	10,000	11.2±0.3	12.1±0.4	14.5±0.5ab	17.8±0.6b	25.1±0.8b	29.4±8.2ab
Height (cm)	3,000	54.4±1.6	58.6±1.8	63.4±2.1b	86.4±3.3c	110.4±4.6c	132.2±29.1b
	5,000	57.9±2.0	62.1±1.9	70.3±2.0a	93.1±2.9bc	123.5±4.0b	150.7±22.3b
	7,000	53.4±2.0	59.9±2.2	75.5±2.3a	104.9±3.4a	147.0±4.7a	189.4±31.9a
	10,000	59.0±1.7	64.0±2.1	75.2±2.7a	99.5±3.8ab	4.8±5.0ab	170.5±43.2ab
H/D ratio	3,000	51.6±2.1	53.0±2.1	47.0±1.7b	51.1±2.0b	53.6±2.0	54.5±1.6b
	5,000	54.5±1.9	53.9±1.7	52.0±1.4a	55.2±1.4ab	54.5±1.5	58.1±1.4ab
	7,000	50.1±1.9	49.4±1.9	50.6±1.6ab	54.7±1.4ab	54.4±1.5	58.3±1.5ab
	10,000	53.3±1.8	53.3±1.8	52.5±1.6a	56.1±1.6a	54.0±1.2	59.2±1.3a