The effect of cold stratification and of gibberellic acid on the seed germination of wild musk yarrow [Achillea erba-rotta subsp. moschata (Wulfen) I. Richardson] populations

The seed stratified at 2 °C in the dark for 14 days and had a germination capacity of 75-86.5% and a mean germination time of 8.9-11.8 days, while the seed treated with 50 mg L−1 of gibberellic acid produced a germination capacity of 68-94% and a mean germination time of 12.5-19.1 days.