Table 2. Percentage of pollen-producing grafts (seed orchard age 9–11) and pollen production per year (seed orchard age 12–20) in the different treatments.
			Percent grafts with pollen (%)			Pollen production (kg ha–1 yr–1)
Code	Target height (m)	Stems ha–1	9	10	11	12	13	14	15	16	17	18	19	20	Average ± StdErr
A	2	4000	28	0	79	15.7	16.1	10.1	28.3	52.8	12.5	24.8	19.5	44.2	24.9 ± 1.6
C	2	2000	26	0	88	11.8	19.3	11.3	49.0	52.4	28.9	23.7	27.8	38.2	29.2 ± 1.7
B	2	1600	29	0	72	20.0	37.5	22.8	27.4	63.9	27.1	60.8	42.1	58.7	40.0 ± 1.9
D	2	1333	35	0	85	12.2	16.6	17.0	39.5	43.4	33.6	39.6	26.7	20.4	27.7 ± 1.3
F	2	889	22	0	83	12.9	12.4	13.0	35.1	45.7	49.1	37.4	50.4	57.2	34.8 ± 2.0
E	3	800	24	0	69	10.8	21.4	26.9	34.5	88.3	91.3	73.4	69.2	69.9	54.0 ± 3.4
G	3	667	11	0	73	9.1	23.1	16.5	25.5	54.1	66.3	49.3	51.9	42.5	37.6 ± 2.2
H	4	667	33	0	77	15.9	30.8	28.5	38.3	66.8	58.2	39.8	53.1	71.8	44.8 ± 2.1
I	3	533	13	0	71	10.4	21.7	17.7	26.9	44.6	68.6	40.9	51.7	44.9	36.4 ± 2.1
K	5	533	11	0	53	3.5	12.3	4.0	29.6	65.6	57.4	41.7	46.6	62.3	35.9 ± 2.7
L	6	533	19	0	70	10.7	29.7	23.5	46.4	81.0	91.6	32.4	62.9	73.8	50.3 ± 3.1
M	4	267	45	0	74	9.0	20.1	14.5	19.2	65.6	55.3	32.7	46.9	39.1	33.6 ± 2.2
N	5	267	11	0	63	1.4	8.2	9.1	21.3	59.4	68.5	49.5	55.2	74.6	38.6 ± 3.2
O	6	267	32	0	78	6.4	18.7	12.3	32.1	55.3	64.4	51.8	53.9	55.5	38.9 ± 2.4
	Average ± StdErr		24	0	74	10.7 ± 0.3	20.6 ± 0.6	16.2 ± 0.5	32.4 ± 0.6	59.9 ± 0.9	55.2 ± 1.7	42.7 ± 1.0	47.0 ± 1.0	53.8 ± 1.2	37.6