Effort to increase growth of
in vitro explants could be done by addition of vitamin and plant growth regulators. This current study was aimed to investigate the effect of addition of calcium pantothenate in combination with Gibberellic Acid (GA3) on in vitro growth of Dahlia sp. Shoots of dahlia were grown on MS medium. Experimental design was factorial completely randomized design. The factors tested were calcium pantothenate in combination with GA3 using concentration level at 0, 0.5, 1 and 2 mg/L respectively. The variables recorded were shoot height, number of leaves, number of shoots and number of roots which were observed weekly at 0-8 weeks after cultures. The results showed that GA3 significantly affected all variables but calcium pantothenate did not significantly affect the number of shoots and number of leaves based the Anova analysis. The highest number of leaves and number of shoots were produced by media MS supplemented with 0.5 mg/L GA3 without addition of calcium pantothenate (16.00 ± 2.73 and 3.00 ± 0.37 respectively). On Media MS with 0.5 mg/L calcium pantothenate alone produce 12.23 ± 1.13 cm shoot height and 3.33 ± 0.84 number of roots. The addition of 2 mg/L calcium pantothenate on MS medium inhibited explants growth.
Rudiyanto, Rantau DE, Ermayanti TE. 2017. Effect of Gibberellic Acid (GA3) in Combination with Calcium Pantothenate on Micropropagation of Dahlia sp. 1st International Seminar on Biotechnology, Universitas Gadjah Mada. Yogyakarta. 72-87
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