<![CDATA[Improvements in cocoa cultivation techniques need to be done by adding goat manure as a mixture of planting media to improve the physical properties of the soil in order to make it easier for roots to develop. This objective of this study was to determine concentration of mycorrhizae, the best growing media for cocoa seedlings, and interaction on the growth of cocoa seedlings. The method used was randomized block design with two factor. The first factor was the inoculation of mycorrhizae consisting of four levels: without inoculation of mycorrhizae 10 g/plant, 20 g/plant, and 30 g/plant. The second factor was the growing media with three levels of growing media: top soil, top soil + goat manure compost (1:1), and top soil + goat manure compost (1:2). The results showed that the growing media had a significant effect on the height and volume of plant roots. Growing media of top soil produced the best average seedling by 38.06 cm and root volume by 4.39 cm3. The interaction of giving mycorrhizae with growing media had a significant effect on root volume with the best treatment 10 g/plant mycorrhizae and top soil by 5.67 cm3. The results analysis of root infection by arbuscular mycorrhizal fungi showed the highest infection in the 20 g/plant mycorrhizae and top soil by 80%. Application of mycorrhizae with growing media can increase cocoa yield and growth. Planting media mycorrhizae infected to soil can affect cocoa seedling.]]>
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