Perlakuan Zat Pengatur Tumbuh Untuk Mempercepat Pertumbuhan Tunas Pada Umbi Sedap Malam (Polianthes tuberosa L.)
Effect of Plant Growth Regulators on Accelerating Shoot Growth in Tuberose (*Polianthes tuberosa*) Bulbs
DOI:
https://doi.org/10.61579/mikhayla.v3i2.987Keywords:
Umbi sedap malam, zat pengatur tumbuh, GA3, BAP, pertumbuhan tunasAbstract
Sedap malam merupakan tanaman hias populer. Bentuk bunganya indah dan harum sehingga disukai oleh masyarakat. Bunga sedap malam potong tidak saja dijumpai di rumah-rumah, tetapi juga di gedung-gedung pertemuan, hotel berbintang bahkan rumah sakit. Selain digunakan sebagai bunga potong, sedap malam banyak dimanfaatkan sebagai bunga tabur dan bahan baku industri minyak atsiri. Penelitian ini bertujuan untuk mendapatkan perlakuan zat pengatur tumbuh yang dapat mempercepat pertumbuhan tunas umbi sedap malam , Penelitian menggunakan rancangan acak lengkap (RAL) dengan satu faktor. Percobaan dilakukan dengan mengaplikasikan GA3 dengan dosis 50, 100, dan 200 ppm dan BAP dengan dosis 150, 350, dan 450 ppm. Masing-masing dosis dilakukan pengulangan sebanyak tiga kali dan masing-masing dosis terdapat 5 sampel umbi bertunas dan 5 sampel umbi tak bertunas, sehingga dibutuhkan umbi sedap malam sebanyak 210 umbi (105 umbi tak tunas dan 105 umbi bertunas). Data yang diperoleh dianalisis sidik ragam (Analisys of Varian) dan jika diperoleh pengaruh nyata maka dilakukan uji lanjut DMRT pada selang kepercayaan 5%. Hasil pengujian statistik Perendaman umbi sedap malam yang bertunas maupun tidak bertunas pada larutan GA3 dan BAP dapat meningkatkan dan mempercepat pertumbuhan tunas. GA3 meningkatkan pertumbuhan tunas apikal umbi sedap malam, sedangkan BAP meningkatkan pertumbuhan tunas lateral umbi sedap malam
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