RESPON PERTUMBUHAN SEMAIAN MANGROVE Rhizophora sp. PADA BERBAGAI JENIS MEDIA TANAM

Abdul Rahman, Muhamad Riyono Edi Prayitno, Kennedi Sembiring, Izza M. Apriliani

Abstract


Rhizopora merupakan jenis tanaman bakau yang dominan ditanam oleh masyarakat di kawasan pesisir Pangandaran. Bakau jenis ini dipilih karena pertumbuhannya yang baik pada substrat jenis lumpur yang banyak terdapat di muara-muara sungai yang ada di Pangandaran. Perbanyakan bibit jenis Rhizopora pun tergolong mudah. Namun demikian belum banyak masyarakat yang secara khusus mengembangkan pembibitan bakau jenis Rhizopora, sehingga terkadang bibitnya harus didatangkan dari derah lain. Penelitian ini bertujuan untuk mengetahui respon pertumbuhan bibit mangrove yang ditanam pada polibag dengan media berupa pasir, tanah merah, lumpur dan serbuk kelapa/cocopeat. Rancangan Acak Lengkap digunakan sebagai metode percobaan dengan perlakuan berupa empat media tanam yang berbeda dengan 50 ulangan. Total bibit Rhizopora yang ditanam yaitu sebanyak 200 bibit. Hasil pengamatan selama 60 hari dianalisis menggunakan analisis ragam dan uji Beda Nyata Terkecil. Pertumbuhan bibit tanaman pada keempat media tanam berbeda secara nyata dengan pertumbuhan rata-rata yang lebih baik yaitu pada media tanah sebesar 5,64 cm dan media lumpur sebesar 5,55 cm. Pertumbuhan rata-rata bibit pada media pasir dan cocopeat  lebih lambat yaitu masing-masing sebesar 5,25 cm dan 5,19 cm.

Rhizopora is the dominant type of mangrove planted at coastal area by the people of Pangandaran . This type of mangrove was chosen because of its good growth on mud-type substrates that are widely found in river estuaries in Pangandaran. Propagation of Rhizopora seeds is also relatively easy. However, not many people have specifically developed Rhizopora mangrove nurseries, resulting the seeds have to be imported from other areas. This study measures the growth response of mangrove seedlings planted in polybags with four different media namely beach sand, red soil, mangrove mud and cocopeat. Completely randomized design was used as the experimental method with four different growing media as the treatment with 50 replications. The total number of Rhizopora seeds planted was 200 seedlings. The results of observations for 60 days were analyzed using analysis of variance and the Least Significant Difference test. The growth of plant seeds on the four planting media was significantly different with a better average growth of 5.64 cm in soil media and 5.55 cm in mud media. The average growth of seedlings on sand and cocopeat media was slower, which was 5.25 cm and 5.19 cm, respectively.


Keywords


Bakau; bibit; media tanam

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References


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DOI: http://dx.doi.org/10.15578/marlin.V3.I2.2022.97-102

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