KUANTIFIKASI PERTUMBUHAN DAN HASIL TANAMAN SERAI WANGI (ANDROPOGON NARDUS) PADA LAHAN PASCATAMBANG BATU BARA DENGAN NAUNGAN ANGSANA (PTEROCARPUS INDICUS)

• Main Author: Anandito Setiaji, Firzan
• Format: Final Project
• Language: Indonesia
• Subjects: Pertanian dan teknologi berkaitan
• Online Access: https://digilib.itb.ac.id/gdl/view/77973
• Institution: Institut Teknologi Bandung

One of the commodities that can be used for the post-coal mining land reclamation process is citronella (Andropogon nardus) because the citronella plant is an adaptive plant that can grow in less than optimal environmental conditions. The main product of the citronella plant is essential oil which is obtained through the process of distilling the leaves of the plant. This study aims to analyze differences in growth, differences in biomass yield, and quality of essential oil from citronella plants in post-coal mining land under Angsana (Pterocarpus indicus) shade. The seeds used came from BALITTRO, namely the Sitrona 1 Agribun (v1), Sitrona 2 Agribun (v2), and Seraiwangi 1 (v3) varieties. Growth observations were carried out 12 weeks after planting (MST) with growth parameters: plant height, leaf width, and number of tillers. Biomass sampling was carried out at 12 WAP by measuring wet weight and dry weight to obtain data on water content and Root Canopy Ratio (NTA). Testing of essential oil yield levels was carried out at the BALITTRO Lab, Bogor. The results showed that in terms of plant height, all treatments did not differ, however, the lemongrass variety 1 (v3)) was the tallest variety (133.94 cm) compared to the other two varieties. In terms of leaf width and number of tillers, the three varieties showed different results. The Sitrona 2 Agribun variety (v2) is the variety that has the widest leaves (1.79 cm) compared to the other two varieties and the highest number of tillers is v1 (20 tillers). The biomass results showed that all varieties were not different, but x the largest biomass value was v2 (150.23 g). Based on lab tests, the largest yield of essential oils was v2 (1.20%).