Spectral Properties of Acacia auriculiformis : Effect of Leaf Position

Spectral characteristics of phyllodes associated with leaf position were investigated for fiveyear old A. auriculiformis trees. The spectral patterns for phyllodes were similar to true leaves. Overall absorptance was 88% with 7% reflectance and 3% transmittance. Phyllode at first position from the top of the branch showed lowest absorptance (83%) due to high reflectance and transmittance. Phyllodes at other positions did not show significant differences in their spectral patterns. Also both surfaces showed similar spectral properties indicating absolutely unifacial nature of two faces of A. auriculiformis phyllode.