Photosynthesis limitations in cacao leaves under different agroforestry systems in the Colombian Amazon (original) (raw)
Fig 4
Chl a fluorescence parameters as a function of PAR in cacao leaves.
(a) electron transport rate (ETR); (b) actual PSII quantum yield (_Φ_PSII); (c) non-photochemical quenching (NPQ) coefficient; (d) photochemical quenching (q L) coefficient. Each agroforestry system is depicted by one curve (continuous line) in conjunction with confidence levels (shaded). Legend of the agroforestry systems is the same as in Figs 1 and 2.