Table 3. Frequency of flax gene flow from 0.1–45 m distance from the pollen source at ElRS in 2006.

Mean distancea (m)	Seeds screenedb	Seeds with high ALA	Actual frequency of gene flow in sample	Ho frequency of gene flow p(x)	Power, (1−β); α=0.05%c
0.1	24 000	347	0.014458	0.005	0.95
0.5	24 000	201	0.008375	0.005	0.95
0.9	4800	4	0.000833	0.005	<0.8
1.3	9600	21	0.002188	0.01	0.95
1.7	9600	47	0.004896	0.01	0.95
2.5	9600	6	0.000625	0.005d	<0.8
2.9	14 400	10	0.000694	0.005d	<0.8
4	48 000	60	0.00125	0.025	0.95
7	52 800	37	0.000701	0.001	0.85
15	148 800	22	0.000148	0.0005	0.95
25	168 000	17	0.000101	0.0005	0.95
35	100 800	11	0.000109	0.001	0.95
45	134 400	0	0.000000	0.0005	0.95

Abbreviations: ALA, α-linolenic acid; ElRS, Ellerslie Research Station.

Frequency of gene flow was calculated from the number of seeds screened and the number of high ALA seeds. To determine gene flow significance, the null hypothesis frequency, based on the sample size and power, was compared with the sample frequency.

^aMean distance from the pollen source was used in analysis for all observations.

^bTotal number of seeds screened from all (eight) blocks for a specific distance from the pollen source.

^cValue of power (1−β) was calculated for 95% confidence interval (α=5%) using equation (1) (see text) and Table 1.

^dα=5%.