Agriculture Reference
In-Depth Information
800
UL
600
400
200
0
600
ML
400
200
0
600
LL
400
200
0
Jul. Aug. Sept.
1983
Oct.Nov. Dec. Jan.
Feb.
Apr.
May June Jul.
Aug.Sept.
Oct. Nov. Dec.
Mar.
1984
Fig. 7.5
Leaf survivorship curves in the upper (
UL
), middle (
ML
), and lower (
LL
) layers of the
canopy in 7-year-old
Theobroma cacao
in a Brazilian plantation under a canopy of shelter trees.
Different
symbols
represent cohorts of leaves emerging at different times. All leaves in the upper
layer had fallen by November 1984, while some leaves still remained in the middle and lower
layers. (From Miyaji et al. 1997)
