Yustina Sri Sulastri, Koko Tampubolon
This research was aimed to obtain the aromatic plants selected as phytoremediation of cadmium heavy metals (Cd-HM) and their relationship to essential oil production. This research was conducted in the Experiment Land, the Faculty of Agriculture, Universitas Sumatera Utara in March until May 2018. This research was used as a non-factorial Randomized Block Design (RBD) with three replications. Plants treatment: P1 (Vetiveria zizanioides), P2 (Cymbopogon nardus), P3 (Curcuma xanthorrhiza), P4 (Cymbopogon citratus), P5 (Pogostemon cablin), P6 (Alpinia galanga) were treated stress heavy metal of 100 ppm 3CdSO4.8H2O. The parameters include water content, Cd-HM uptake, Cd-HM uptake ratio, essential oil total content, translocation factor, correlation coefficient, and determination. The analysis using the ANOVA and were continued by DMRT at level 5%, and multiple l inear regression using the IBM SPSS Statistics 20 software. The results showed that translocation factor value sequentially of P5> P6> P4> P2> P3> P1. The Cd-HM uptake ratio in the root was higher than in the shoot except for P4 plant. There was an increase in the essential oil total content in the P1, P2 and P5 plants of 101.56%; 12.70% and 2.27%, respectively. The increased water content in the plant can decrease the essential oil total content but the Cd-HM uptake can increase the essential oil total content. The water content, Cd-HM uptake in the root and shoot had positive linear correlation, were classified as weak (r = 0.30) and their relationship of 9.10% (slightly) to the essential oil total content. © IJSTR 2019.
Faculty of Agriculture, Universitas Sumatera Utara, Medan, 20155, Indonesia; Faculty of Agriculture, Universitas Katolik Santo Thomas, Tanjung Sari, Medan, 20133, Indonesia