Pertumbuhan dan Perkembangan Protocorn Like Bodies (PLB) Anggrek Papua Dendrobium discolor dengan Perlakuan Auksin dan Sitokinin
DOI:
https://doi.org/10.31957/jbp.1299Abstract
Dendrobium could meet the demands of domestic and foreign consumers from time to time because of their very charming flower blossoms. Orchid flowers are attractive because of the variety their color, size, shape, composition, number of buds the blossom of flowers, especially for the color it is vary greatly. One of the potential Dendrobium Papua orchids is Dendrobium discolor. To fulfill the needs of Dendrobium orchids in pots or in peaces it is depend on the success of Protocorn Like Bodies (PLB) cultivation. The purpose of this study was to determine the growth and development of PLB cultivated in vitro on Vacint & Went (V&W) base media with a combination of different plant growth regulators. The method used wasPLB cultivation with tissue culture techniques in vitro on V&W media with a factorial completely randomized design (CRD). The first factor was auxin treatment (2,4D) with 5 concentrations 1, 2, 3, and 4 ppm plus control (without plant growth regulator treatment), while the second factor was cytokinin treatment with 5 concentrations 1, 2, 3, and 4 ppm plus 1 control (without plant growth regulator treatment). Each treatment repeated 5 times, threfore, there are 125 treatment units in total 125 treatment units. The media used were Vacin and Went (VW). The variables measured were leaf length and the number of leaves per plantlet in each combination treatment of plant growth regulator (PGR) after one month of cultivation. Data were analyzed by using variance (ANOVA) to determine the significance. The results of this study indicated that the combination treatment of auxin and cytokinin PGR in V&W media had a significant effect on the length and number of plantlets leaves and the most significant treatment was the combination of PGR auxin: cytokinin = 0:3 ppm. So it can be concluded that the best medium for PLB culture is a combination of PGR auxin: cytokinin = 0:3 ppm. with an average value of 3.5 cm plantlet leaf length and number of 6 leaves per plantlet.Â
Key words: Protocorn Like Bodies; tissue culture; V&W medium; auxins; cytokinins.
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