KEBERHASILAN PERTUMBUHAN STEK JAMBU MADU (Syzygium equaeum) DENGAN PEMBERIAN ZAT PENGATUR TUMBUH KIMIAWI DAN ZAT PENGATUR TUMBUH ALAMI BAWANG MERAH (Allium cepa L)

Abstract

The purpose of this research is to determine the growth of guava cuttings (Syzygium equaeum) by administering a chemical and natural growth regulator from onion extract (Allium cepa L). This study uses Factorial Randomized Block Design (RBD) consisting of 2 treatment factors and 3 replications. The first treatment is the utilization of chemical growth regulators, which consist of C0: no chemical growth regulator, C1: 20 ml chemical growth regulator / 1 liter of water) / cuttings; C2: 20 ml chemical growth regulator / 2 liters of water) / cuttings. The second treatment is the application of natural growth regulators onion extract, which consist of A0: no onion extract, A1: 20 ml onion extract /1 liter of water / cuttings, A2: 30 ml onion extract / 2 liters of water) / cuttings. The highest growth results of cuttings are in C0A1, C0A2 and C2A2, because of auxin and gibberellin hormone in C0A1 and C0A2 where the auxin lengthen the stem and roots, and the gibberellins support the leaf growth, and elongation of shoots and roots.

The Effect of Combination of Coconut Water (Cocos nucifera) and Shallot Crude Extract (Allium cepa L.) on the Growth of Caulerpa racemosa

“…The combination of PGRH derived from coconut water and shallots will be able to add hormones to plants [8]. Plants are able to absorb PGR through all plant cell surfaces, this absorption causes the competence of cells or tissues to grow and develop [22]. The effectiveness of PGR contained in plants was influenced by plant species, concentration and plant development stage, so proper concentrations were needed for plant growth and development.…”

Pengaruh macam media tanam dan konsentrasi zat pengatur tumbuh terhadap pertumbuhan stek dua nodus melati

“…Zat pengatur tumbuh dapat merangsang pertumbuhan akar, dan memperpanjang sel tanaman, sehingga mampu mengurangi angka kegagalan dalam penyetekan (Wulandariet al, 2013).Auksin mempercepat keluarnya akar-akar baru (Malfirani et al, 2014). Giberelin dapat memacu pertumbuhan daun, pemanjangan akar, serta munculnya tunas, sementara sitokinin dapat meningkatkan pertumbuhan tunas (Tambunan et al, 2018). Asam traumalin dapat mempercepat penutupan luka pada stek (Salisbury dan Ross, 1995).…”

“…Setelah tumbuh, giberelin meningkatkan pertumbuhan stek tersebut. Giberelin terbukti dapat meningkatkan pemanjangan batang dan peningkatan jumlah sel pada bibit melati (Yulia et al, 2012;Tambunan et al, 2018).…”

“…Sitokinin mampu mempercepat pembentukan daun dan memacu pembelahan serta pembesaran sel. Auksin dapat memacu kerja sitokinin dalam proses pembelahan dan pembesaran sel (Salisbury dan Ross, 1995;Tambunan et al, 2018).…”

Growth of Shorea Leprosula Seedlings Prepared in Combo Nursery Technique to Support Mine Reclamation

“…Persentase hidup stek batang G. sepium dalam penelitian ini berkisar antara 70 -80 %, jumlah tunas antara 2 -3, dan pertumbuhan panjang stek antara 17 -23 cm. Stek dinyatakan hidup apabila bahan stek masih berwarna hijau, terlihat segar, dan tidak menjadi kering atau busuk (Tambunan et al, 2018). Kondisi media tanam jenuh air akan mengakibatkan bahan stek mudah busuk ditandai pangkal stek berwarna kecoklatan disertai batang sudah tidak berisi jaringan lagi (Apriani & Suhartanto, 2015).…”