Nugawela, A.Ariyawansa, P.Samarasekera, R.K.2013-05-082013-05-081995Journal of the Rubber Research Institute of Sri Lanka76pp.1-10https://dl-rri.nsf.gov.lk/handle/1/1500BotanyPlant physiologyLeavesHevea brasiliensisPhysiological yield determinants of sun and shade leaves of Hevea brasiliensis Muell. ArgA