POTENSI KANGKUNG (Ipomoea aquatica Forsk.) DAN RUMPUT ASINAN (Paspalum vaginatum Swartz) SEBAGAI FITOREMEDIATOR TANAH TERCEMAR LUMPUR LAPINDO DAN KARAKTER STRUKTUR ANATOMI AKAR
| Main Authors: | , Rukhul Fitriyah, , Dr.Retno Peni Sancayaningsih, M.Sc. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2011
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/90290/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=53082 |
Daftar Isi:
- Lapindo mud contains many pollutants such heavy metals and other toxic compounds which are harmful to organisms. This research studied potency of water spinach (Ipomoea aquatica Forsk.) and salt water grass (Paspalum vaginatum Swartz) to absorb Pb and Cd from lapindo mud media, Pb and Cd contents in roots and leaves as well as its anatomical structures. Treatments were done using mixture between rice paddy soil and lapindo mud with ratio of 100%: 0%, 75%: 25%, 50%: 50% and 25%: 75% with 4 replicates. Parameters taken were total plant biomass, plant height and number of leaves, Pb and Cd contents in leaves, roots the growth medium. Plant biomass, plant height, and number of leaves of I. aquatica decreased with increasing of Lapindo mud levels, while the biomass, plant height and leaf number of P. vaginatum did not conspicuously decline. P. vaginatum had a higher resistance to Lapindo mud than I. aquatica. Pb and Cd contents in polluted growth media were lower after remediated by I. aquatica and P. vaginatum. Pb and Cd contents absorbed by plant roots were higher than in the leaves both in I. aquatica and P. vaginatum. Increased lapindo mud levels in the growth medium did not change root cortical diameter of I. aquatica but changed stele diameter, number of trachea, damage in epidermis, xylem cell wall thicken and extended the space between the cell cortical cells. Lapindo mud levels decrease the cortical diameter, stele diameter, extended the space between cortical cells of P. vaginatum but did not change the epidermis and thickness of xylem cell wall.