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250
With Gliricidia
[] Without Gliricidia P=0,83
200 ..................................
P=0,81
o 150 ............................... P--:o.28 '_.--0.4_,.
.E P=0.21
03
©
C"
c 100
aJ
50
0
P=0.31
P=0.29
P=0.12
P=0.32
P=0.48
1/92 2/92 3/92 4/92 9/92 11/92 1/93 3/93 5/93 7/93
Sample Date
Figure 1.--Influence of companion planting Gliricidia sepium with Milicia excelsa on M. excelsa growth at nine sample dates
over 14 months. P-value based on paired t-test.
C
800 ................................................
_- 600
O
With Gtiricidia
[] Without Gliricidia
(f} P=,).55 P=0.28
> _n
//A
Z 400 ............................................. //A
o ///1
I,- P=0.82 //A
//A
//A
E P=O.S6 //A
L 200 P=0:66 .......................
I'0-" .lo ///I
//A
P=0,19
11/91 12/91 1/92 2/92 3/92 4/92 9/92 11/92 1/93
Sample Date
Figure 2.--Influence of companion planting Gliricidia sepium with Milicia excelsa on the number of" leaves of M. excelsa.
P-value based on paired t-test.
266