Nugawela, A.Ariyawansa, P.Samarasekera, R.K.2012-06-252012-06-251995Journal of the Rubber Research Institute of Sri Lanka76pp.1-10https://dl.nsf.gov.lk/handle/1/8777BotanyPlant physiologyLeavesHevea brasiliensisPhysiological yield determinants of sun and shade leaves of Hevea brasiliensis Muell. ArgArticle