PENGARUH PEMBERIAN VARIASI KONSENTRASI THIAMIN HCL TERHADAP SEEDLING ANGGREK Phalaenopsis Var. Happy Valentine

Phalaenopsis var. Happy Valentine orchid is a plant with a growth and flowering process of
approximately 1-2 years. Generally, orchids can bloom in about 9-12 months. Optimal concentrations
of Thiamine HCl (vitamin B)) are required to support the vegetative growth of Phalaenopsis var. Happy
orchids. This research aims to determine the effect and the best concentration of vitamin B; among I ml,
2ml, and 3ml on the vegetative growth, including leaf span, root quantity, leaf width, and length of
young leaves of Phalaenopsis var. Happy Valentine seedlings. The method used was a Completely
Randomized Design (CRD), with treatment factors being the concentration of vitamin B; and Growmore
fertilizer, comprising four treatment levels and six replications, namely VO = 2gr/L Growmore fertilizer,
V1 = 2gr/L Growmore fertilizer + Imi B;, V2 = 2gr/L Growmore fertilizer + 2ml B;, dan V3 = 2gr/L
Growmore fertilizer + 3ml B;. This research used 24 Phalaenopsis var. Happy Valentine orchid
seedlings as research samples. The data were analyzed using ANOVA with a significance level 0.05
and subsequently subjected to Duncan's test, The results indicate that vitamin B, significantly affects
leaf span, length of young leaves, and the quantity of roots in Phalaenopsis var. Happy Valentine.

Keywords: Concentration; Phalaenopsis; Thiamine HCl