Figure 1.

The proportion of germinated seeds of different Latvian Avena fatua populations in different germination and dormancy breaking treatments (proportion of the total number of seeds in the sample, vertical bars represent the standard error). (a) Initial germination tested within 2 weeks after seed collection; (b) Afterripening treatment (seeds germinated at 22 °C); (c) Untreated seeds (seeds germinated at 10 °C); (d) Treatment with 1.0 mM gibberellic acid. The presented data are back-transformed values of the logistic regression models.