Estate

Mondoni

Debundscha

Bota

Mungo

Idenau

Illoan-Boa

Age of oldest plantations as of 2017

45

34

59

48

37

32

No. of years in excess of optimal replanting age (23 YAP)

22

11

36

25

14

9

Mean yields obtained in plantations with age > 23 YAP (t·FFB·ha⁻¹)

4.77

4.73

3.66

2.77

7.21

12.31

Estimated mean yield increase if trees were replanted 23 YAP (t·ha⁻¹)

8.88

8.31

7.93

7.98

11.04

5.86

t value

1.165

−2.425

4.919

2.965

2.375

−4.020

probability

0.253

0.051

0.000*

0.010*

0.042*

0.010*

Yield increase through replanting (%)

46.28

43.08

53.85

65.29

34.69

−52.40