In Vitro Multification of Dendrobium sp. with Plant Growth Regulator

Abstract

Orchids are plants that has aesthetic value and high economic important. Included to ornamental plant whose existence is diminishing and endangered. To preserve this plant, it needs to in vitro thchnique. The aim of this study was to determine the best interaction of growth regulator Benzyl amino purine, coconut water and the interaction of both multiplication of Dendrobium sp. The research method used a completely randome design with various concentrations of Benzyl amino purine (BAP; 0,1,2,3 mg/L) and coconut water concentrations (0%,5%,10%). The parameter observation are number of buds, leaves and roots. The data were analyzed descriptively and inferentially with ANOVA. The results shows the real effect of BAP interaction, between coconut water buds and leaves, but did not significantly affect the number of roots. Within 12 weeks of observation the highest number of buds and leaf obtained from a combination of 5% coconut water + BAP 0 mg/L were 12.00 and 5.00. The lowest number of buds and leaves was obtained in combination of 5% coconut water + BAP 2 mg/L, 6.00 and 1.00.