Table 5 Colour parameters measured in logs of Hieronyma alchorneoides from the fast-growth plantation under different treatments and different tree heights

0.0–2.5

Untreated

23.2^B (22.3)

13.6^C (39.8)

9.3^B (57.9)

52.1^B (13.8)

20.3^A (20.3)

26.1^A (16.5)

Heating_treatment

39.2^A (23.7)

16.7^B (23.5)

16.8^A (26.1)

63.2^A (5.4)

13.1^B (17.1)

22.8^B (7.1)

Steaming_treatment

36.8^A (18.2)

20.0^A (23.8)

17.0^A (22.1)

61.1^A (8.1)

14.0^B (16.5)

21.5^B (12.3)

2.5–5.0

Untreated

22.4^B (24.8)

13.7^C (40.4)

8.9^C (54.4)

53.1^C (14.8)

19.6^A (25.9)

25.2^A (24.3)

Heating_treatment

36.4^A (20.9)

17.4^B (10.9)

16.3^B (22.0)

64.1^A (8.8)

11.3^C (20.2)

22.1^B (6.0)

Steaming_treatment

37.1^A (12.9)

20.0^A (13.3)

19.8^A (19.9)

58.3^B (9.8.7)

15.7^B (19.0)

23.0^AB (12.9)

5.0–7.5

Untreated

29.8^B (32.3)

18.8^A (20.8)

12.8^B (35.6)

62.2^A (10.0)

15.5^A (28.7)

25.3^A (23.0)

Heating_treatment

45.0^A (8.7)

20.7^A (12.0)

22.5^A (16.4)

65.0^A (5.0)

12.2^B (17.2)

22.9^A (7.4)

Steaming_treatment

43.4^A (9.5)

20.9^A (10.4)

20.5^A (12.8)

63.2^A (4.4)

13.6^AB (15.3)

22.6^A (8.2)

7.5–10.0

Untreated

–

–

–

66.3^A (4.9)

12.4^A (20.8)

23.2^A (29.6)

Heating_treatment

38.9^A (30.0)

17.1^B (9.2)

15.9^B (30.1)

63.7^AB (6.0)

12.3^A (29.2)

22.5^A (9.5)

Steaming_treatment

47.9^A (3.6)

22.1^A (14.3)

34.3^A (51.7)

60.1^B (4.7)

14.8^A (12.0)

21.7^A (9.8)