Pertumbuhan Tanaman Sengon (paraserianthes falcataria L.) Terinfeksi Mikoriza pada Lahan Tercemar Pb.

Abstrak

Paraserianthes falcataria plant is well known to be capable to make an excellent association and symbiosis with
mycorrhizae. Mycorrhizae can improve the plant's ability to survive in heavy metal contaminated land, one of which
is Pb (lead). Pb is the main heavy metal pollutants in all environments. This aims of this research were to determine
the accumulation of Pb on sengon plant roots and its growth in Pb contaminated media. This research uses a
completely randomized design. Pb(NO3)2 were given at a dose of 833 mg/kg and the concentration of mycorrhizal
inoculation of Glomus sp. used were 25, 50 and 75 grams of mycorrhizae. The measured parameters were plant
height, root length, plant dry weight, accumulation of Pb in roots, chlorophyll and protein profile test. The results
showed that 75 grams of mycorrhizal Glomus sp. were the highest on several parameters including plant height, dry
weight, root length. The chlorophyll content were grown on media containing Pb with each value of 77.5 cm; 17.86
grams; 31.5 cm; 8.99 g/ml. A dose of 75 grams of Glomus sp. also increased the absorption and accumulation of Pb
in the roots with 3.60 ppm. while the protein electrophoresis show the specific band in P. falcataria that exposed to
Pb with molecular weight 53.67 kDa.