Potential Propagation by Seed and Cuttings of the Azorean Native Calluna vulgaris (L.) Hull

Table 2

The effect of temperature regime on the germination characteristics of Calluna vulgaris seeds under a photoperiod of 8 h. Storage period at room temperature before trial: 6 days. Mean values ± standard deviations. In each column, groups that showed significant differences (𝑃<0.05) are indicated with different letters.

Temperature regime (°C)	Number of seeds	Days to first radicle emergence	Mean time of germination (days)	Percent germination (at day 126)
10	4 × 100	17 ± 2.0^a	44 ± 3.1^a	93 ± 5.8^a
15	4 × 100	15 ± 1.7^a	34 ± 3.0^b	90 ± 7.0^a
20	4 × 100	15 ± 1.5^a	33 ± 5.2^b	65 ± 6.8^b
20–10	4 × 100	17 ± 1.0^a	32 ± 2.8^b	74 ± 6.5^b