Uji Efektifitas Berbagai Zat Pengatur Tumbuh Alami dan Sintetis Terhadap Pertumbuhan Stek Pucuk Jambu Air Kesuma Merah (Syzygium aqueum)

Abstract

This study aimed to compare the response of administration of various synthetic plant growth regulators and plant growth regulators naturally to the growth of the plant shoot cuttings water apple var.Kesuma merah (Syzygium aquaeum). This research was conducted at the site, located at Jalan Dusun Simple IX, Sambirejo East Village, District Percut Sei Tuan, Deli Serdang district with a height of 20 m above sea level. The study was conducted in March and May 2016. The study was done by planting in polybag. This study was conducted using a completely randomized design (CRD) non factorial consisting of six treatment factors, namely: A0 = (Control), A1 = plant growth regulator Natural Extract Shallot, A2 = plant growth regulator Natural Coconut water, A3 = Substances Growing Regulatory Natural Cow Urine, A4 = plant growth regulator Synthetic Liquinox Start, A5 = Synthetic Atonik plant growth regulator, A6 = Synthetic Biggest plant growth regulator. The results showed that administration of growth regulators did not affect the measurement of the plant height and number of leaves at the age of 4 to 9 MST, but the real impact on the percentage of growth parameters, root length and root number. The best treatment is in treatment A5 (PGR Atonik), namely the provision of 2% concentration / l of water.