Samaranayake P.Rupatunga, K.W.Fernando, D.M.Jayasekera, N.E.M.2014-07-102014-07-101979Journal of the Rubber Research Institute of Sri Lanka, 56:p.29-33https://dl-rri.nsf.gov.lk//handle/1/2584In vitro germination of pollen and pollen tube growth of hevea brasiliensis in the presence of calcium and boronArticle