Abstract
The purpose of this study was to determine the effect of organic matter in the planting medium and a concentration of 2.4 D on the growth of breadfruit root cuttings. This experiment was carried out in the form of a factorial experiment consisting of two factors using a Completely Randomized Block Design (CRBD) with 2 treatment factors. The first treatment was utilizing media of organic materials; filter cake, sawdust and rice husk. The second treatment was adding a concentration of 2.4 D: 1.0; 1.5 ; and 2.0 mL.L-1 water. The experimental results showed that breadfruit root cuttings in the filter media were better for shoot height, number of leaves, leaf area and root volume compared to sawdust and rice husk media. A low concentration of 2.4 D (1.0 mL.L-1 water) showed better growth of shoot height and number of leaves than higher concentrations. The interaction of filter cake media and low concentration of 2.4 D (1.0 mL.L-1 water) had a significant effect on the sprouting rate of breadfruit root cuttings. The study therefore concluded that the interaction of filter cake media with the addition of 2.4 D concentration showed that the increase in auxin concentration was inversely proportional to the rate of sprouting rate produced by breadfruit seeds and became the best treatment combination on the parameter of sprouting rate.
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