Pengaruh Variasi Fotoperiodisitas terhadap Pertumbuhan Chlorella dalam Medium Basal Bold  

Oleh:

Prihartini, Nining B. ; Rachmayanti, Winny ; Wardhana, Wisnu

Jenis: Article from Journal - ilmiah nasional - tidak terakreditasi DIKTI
Dalam koleksi: Biota Jurnal Ilmiah Ilmu-ilmu Hayati vol. XII no. 1 (Feb. 2007), page 32-39.
Topik: Chlorella; Photoperiodicity; algal physiology

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: BB74 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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The reseach pf photoperiodicity effect on the cell densities of genus Chlorella grown in Bold's Basal medium (BBM) had been done. Observations were done for 14 days. Reseach was experimental study with full random design to 8 varieties of photoperiodicity i.e. 6 h light / 18 h dark (L/D) cycles, 8 h light/ 16 h dark (L/D) cycles, 10 h light/ 14 h dark (L/D) cycles, 12 h light/ 12 h dark (L/D) cycles, 14 h light/10 h dark (L/D) cycles, 16 h light/8 h dark (L/D) cycles, 18 h light/6 h dark (L/D) cycles, and 24 h light/0 h dark (L/D) cycles. On peak culture, 24 h light/0 h dark (L/D) cycles produced the highest cell numbers (204.680.000 cell/ml) and the lowest cell numbers were achieved by culture with 6 h light/18 h dark (L/D) cycles. Kruskall-Wallis test showed that there were some effects of photoperiodicity variations on cell numbers of Chlorella (cell/ml) in culture (p>0.05). Multiple comparison tests showed that mean of cell numbers of Chlorella (cell/ml) differ (p>0.01) on every photoperiodicity. Relationship between photoperiodicity and cell numbers of Chlorella was determined by regression equation Y=24634821,214+21977643,869X.

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