Table 5. Differences in seed viability and germination rate between Platanthera bifolia, P. chlorantha and their crossings tested with Dunn’s test of multiple comparisons.

Significant differences are given in bold.

Comparison between species and hybrids		Seed viability		Germination rate
Group1	Group2	Z	p	Z	p
bifolia-M/chlorantha-F	chlorantha-M/bifolia-F	1.300	0.233	1.541	0.185
bifolia-M/chlorantha-F	bifolia	−2.386	0.034	−2.461	0.028
chlorantha-M/bifolia-F	bifolia	−3.016	0.008	−3.317	0.003
bifolia-M/chlorantha-F	chlorantha	1.375	0.253	0.884	0.377
chlorantha-M/bifolia-F	chlorantha	−0.483	0.629	−1.074	0.339
bifolia	chlorantha	4.250	0.0001	3.829	0.0008