Table 2 Average dormancy percentage (× ± SD) for mature and fresh seeds of A. longifolia and A. mearnsii after different levels of fire factors and after scarification. Different labels indicate significant differences in the HSD Tukey test performed between the control and treatments

Mature

Fresh

Mature

Fresh

Control

96.0 ± 8.3^a

33.6 ± 1.8^b

93.6 ± 4.0^a

99.2 ± 12.8^a

Smoke, 5 min

87.2 ± 8.0^a

46.4 ± 3.6^b

92.0 ± 4.4^a

97.6 ± 18.0^a

Smoke, 10 min

89.6 ± 4.0^a

39.2 ± 1.8^b

96.0 ± 5.4^a

99.2 ± 15.6^a

Smoke, 15 min

89.6 ± 2.2^a

44.8 ± 1.8^b

93.6 ± 5.4^a

99.2 ± 10.0^a

Ash-low

96.0 ± 2.2^a

37.6 ± 2.2^b

98.4 ± 2.8^a

97.6 ± 10.0^a

Ash-medium

88.8 ± 4.9^a

39.2 ± 3.6^b

96.0 ± 3.3^a

97.6 ± 16.3^a

Ash-high

89.6 ± 4.6^a

36.0 ± 4.4^b

93.6 ± 6.1^a

96.8 ± 11.3^a

Charcoal

94.4 ± 2.2^a

36.8 ± 2.2^b

94.4 ± 6.1^a

98.4 ± 6.6^a

80 °C, 5 min

20.0 ± 3.3^b

2.4 ± 2.8^cd

95.2 ± 11.0^a

96.0 ± 3.6^a

80 °C, 10 min

6.4 ± 4.6^cd

4.8 ± 6.6^cd

89.6 ± 4.6^a

91.2 ± 5.2^a

110 °C, 5 min

0.8 ± 7.8^d

2.4 ± 9.5^cd

30.4 ± 1.8^b

31.2 ± 2.2^b

110 °C, 10 min

0.8 ± 12.5^d

1.6 ± 10.4^d

19.2 ± 1.8^c

18.4 ± 2.2^c

150 °C, 5 min

0 ± 0^d

0 ± 0^d

0 ± 0^d

0 ± 0^d

150 °C, 10 min

0 ± 0^d

0 ± 0^d

0 ± 0^d

0 ± 0^d

200 °C, 5 min

0 ± 0^d

0 ± 0^d

0 ± 0^d

0 ± 0^d

200 °C, 10 min

0 ± 0

0 ± 0^d

0 ± 0^d

0 ± 0^d

Scarification

0 ± 0^d

0 ± 0^d

0 ± 0^d

0 ± 0^d