Mating system and gene flow of Nothofagus alpina (Poepp. & Endl.) Oerst. in a clonal seed orchard

New Zealand Journal of Forestry Science

Table 2 Number of empty and full seeds following self-fertilisation (E), agamospermy (A), cross-fertilisation (C). The self-incompatibility index (SII) was calculated

Individual treatments (clones)	Pollinated flowers	\( \overline{x} \) full seeds^a	Full seeds/flower^b	\( \overline{x} \) empty seeds	SII E/C^c
Self-fertilisation (E)
26	185	5.26	0.029 a	179.74	0.06
11	82	2.95	0.035 b	79.05	0.078
32	107	3.85	0.036 b	103.15	0.07
36	106	3.89	0.036 b	102.11	0.08
5	80	3.68	0.046 bc	76.32	0.15
19	123	6.27	0.051 c	116.73	0.12
\( \overline{x} \)			0.039		0.09
Sd			0.01		0.03
σ ²			0		0
Agamospermy (A)
32	113	0	0	113
36	144	0	0	144
19	190	0	0	190
5	153	0	0	153
19	106	0	0	106
\( \overline{x} \)			0
Sd			0
σ ²			0
Cross-fertilisation (C)
26	234	111.38	0.46 b	122.62
11	68	31.95	0.47 b	36.05
32	480	234.96	0.49 cb	245.04
36	95	42.74	0.45 b	52.26
5	86	26.66	0.31 a	59.34
19	240	101.25	0.42 a	135.75
\( \overline{x} \)			0.43
Sd			0.0661
σ ²			0.0043

^aMeans for three replicate branches per tree
^bDifferent letters signify statistical differences according to the Kruskal–Wallis test C (k = 8.87, p = 0.1810), E = (k = 6.75, p = 0.2210)
^cRatio of full seeds per flower between E and C