Robuta

https://www.scirp.org/reference/ReferencesPapers?ReferenceID=1423300
McCree, K.J. (1972) Action Spectrum, Absorptance and Quantum Yield of Photosynthesis in Crop Plants. Agricultural Meteorology, 9, 191-216.
k jaction spectrumquantum yieldmccreeabsorptance