2020. SPAD-502 and atLEAF CHL PLUS values provide good estimation of the chlorophyll content for Hevea brasiliensis Müll. Arg. Leaves. E-Journal Menara Perkebunan. 88, 1 (May 2020). DOI:https://doi.org/10.22302/iribb.jur.mp.v88i1.369.