PENGARUH PENAMBAHAN KARBON DIOKSIDA (CO2) DAN AIR KELAPA TERHADAP PERTUMBUHAN BIBIT ANGGREK Phalaenopsis Sogo Yukidian PADA TAHAP AKLIMATISASI

INDRI ARINA KHASANATI, Dr. rer. nat. Ari Indrianto, S. U.

2017 | Skripsi | S1 BIOLOGI

Bibit anggrek hasil perbanyakan secara in vitro umumnya memiliki tingkat persentase hidup yang rendah pada tahap aklimatisasi karena perbedaan kondisi in vitro dan ex vitro. Penambahan CO2 pada tumbuhan diketahui dapat meningkatkan pertumbuhan dan fiksasi CO2. Kandungan senyawa organik kompleks pada air kelapa diketahui dapat menjadi sumber nutrien dan zat pengatur tumbuh. Penelitian dilakukan untuk mengetahui pengaruh penambahan CO2 dan air kelapa terhadap pertumbuhan bibit anggrek Phalaenopsis Sogo Yukidian Bibit anggrek Phalaenopsis Sogo Yukidian berumur 1 tahun diberi perlakuan penambahan CO2 (2242,92 ppm) pada siang hari, malam hari atau tanpa penambahan CO2 (445,64 ppm). Air kelapa dengan konsnetrasi 0, 50, 100, 150 mL/L diberikan setiap minggu selama 8 minggu. Hasil penelitian menunjukkan bahwa 100% bibit dapat tumbuh dengan baik. Penambahan CO2 dan air kelapa tidak signifikan mempengaruhi pertumbuhan bibit anggrek Phalaenopsis Sogo Yukidian pada tahap aklimatisasi.

Orchid Seedlings of in vitro propagation generally have a low percentage of survivorship in the acclimatization stage due to the difference condition between in vitro and ex vitro. CO2 enrichment in plants is known able to increase growth and CO2 fixation. The content of complex organic compounds in coconut water is known to be a source of nutrients and growth regulators. The aim of this experiment was to evaluate effect of CO2 enrichment and application of coconut on growth of Phalaenopsis Sogo Yukidian seedlings. One years old P. Sogo Yukidian seedlings were treated with CO2 (2242,92 ppm) during the day or night or without CO2 enrichment (445,64 ppm). Coconut water with concentration of 0, 50, 100, 150 mL/L was applied once a week for 8 weeks. The results showed that 100% seedlings were grown well in all treatments. The addition of CO2 and coconut water did not give significant effect on growth of P. Sogo Yukidian at the acclimatization stage.

Kata Kunci : Kata kunci: Penambahan CO2, air kelapa, Phalaenopsis Sogo Yukidian, aklimatisasi.