Pathirana, L.S.S.Nugawela, A.Samarasekera, R.K.2013-05-082013-05-081998Journal of the Rubber Research Institute of Sri Lanka81pp.29-37https://dl-rri.nsf.gov.lk/handle/1/1428AgriculturePlant physiologyGrowth irradiancePhoton flux densityQuantum efficiencyRespirationLight intensityRubberIntercroppingShade effects on photosynthesis of cinnamon (Cinnamomum verum J. Pres)A