Table 2.

Difference among plants in the populations

	Population (samples) no.	No. of variable populations (P < 0·01)*	Median difference (fold)	Maximum difference (fold)
All populations (2x + 4x)	24 (87)	16	1·022	1·121
All excluding Mikulov population	23 (84)	15	1·021	1·077
Diploid (2x) populations	10 (40)	8	1·022	1·056
Tetraploid (4x) populations	14 (47)	8	1·021	1·121
2x excluding Mikulov population	13 (44)	7	1·021	1·077

The only diploid sample from a mixed population was excluded from the analysis.

^*One-way ANOVA.