Keberhasilan Hidup Beberapa Tumbuhan Riparian Lokal yang Ditanam di antara Biomassa Kangkung yang Tumbuh Terapung di Kolam Fitoremediasi
Abstract
Tujuan dari penelitian ini untuk mengetahui keberhasilan hidup dan pertumbuhan beberapa tumbuhan riparian lokal yang ditanam terapung di antara biomassa Ipomoea aquatica Forsk. (kangkung). Eksperimen semu ini menggunakan tumbuhan riparian lokal Acorus calamus L. (dlingo), Coix lacryma-jobi L. (Jagung jali), Colocasia esculenta (L.) Schott (Talas), Cyperus alternifolius L. (Bintang air), Fimbristylis globulosa (Retz.) Kunth. (Mendong), Hedychium coronarium J. Koenig. (Gandasuli), Ipomoea crassicaulis (Benth.) B. L. Rob. (Kangkungan), Limnocharis flava L. (Genjer), Monochoria vaginalis (Burm. f.) C. Presl ex Kunth. (Eceng padi). Sembilan spesies ditanam di antara biomassa I. aquatica, masing-masing sebanyak sepuluh individu secara monokultur di kolam fitoremediasi air irigasi. Keberhasilan hidup ditunjukkan oleh pertumbuhan tunas dan anakan. Pertumbuhan tunas dan anakan diamati satu bulan sekali. Analisis data menggunakan Ms. Excel, PAST dan SPSS. Hasil penelitian menunjukkan bahwa semua tanaman riparian berhasil hidup sebagai tanaman terapung di antara biomassa I. aquatica, namun F. globulosa, A. calamus dan L. flava merupakan spesies yang mampu membentuk tunas dan anakan. Sebaliknya keterbatasan pertumbuhan tunas dan anakan diamati pada H. coronarium dan C. alternatifolius. Sedangkan keberhasilan hidup C. lacryma-jobi, I. crassicaulis, M. vaginalis dan C. esculenta termasuk kelompok sedang.
Kata Kunci: Biomassa kangkung, keberhasilan hidup, terapung, tumbuhan riparian lokal
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