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

Table 6

Rooting percentages obtained on different types of cuttings of Calluna vulgaris under a photoperiod of 16 h and a temperature regime of 20°C. Mean values ± standard deviations. In each column, groups that showed significant differences (𝑃<0.05) are indicated with different letters.

Type of stem cutting	𝑁	October; Peat : perlite (1 : 1)	𝑁	March; Native soil : perlite (3 : 1)
Heel	4 × 10	50.0 ± 14.1^a	4 × 20	90.0 ± 13.5^a
Reproductive	4 × 10	30.0 ± 7.1^ab	—	—
Straight	4 × 10	25.0 ± 7.1^bc	4 × 20	96.3 ± 4.8^a
Mallet	4 × 10	10.0 ± 7.1^c	4 × 20	70.0 ± 16.3^b