I`m still trying to learn about it but the tree`s growth pattern is to grow vertically sending lateral shoots from the same spot.. those lateral shoots CANNOT be bent to become new leaders.. The tree will die off it loses its apical leader, side shoots don`t behave as apical leaders.. Dont ask me why but it is what it is! As the tree gains height and vigor on the top, the former lateral shoots down bellow start withering and then die off.. Just like a Japanese Black Pine does with its lower growth eventually.
So in order to aquire the 'candelabra' form one must let the tree grow strongly, when the tree emits 4 lateral shoots (recommended minimum of 4) you prune of the apical leader (beginning of spring, when the tree starts pumping growth) and from that cut point several smaller shoots will emerge.. select the weakest one and prune the rest.. That weakest new leader will produce smaller internodes and you let that shoot develop more lateral shoots and you keep the cicle untill you have enough lateral shoots to build the candelabra form.. Keep in mind you also must let the tree grow in height to get a decent thickness from it.. Its all about balancing the vertical growth to build girth on the trunk and not letting the internodes go wild so you can still develop the crown... remember theres no first branch, second branch, back branch, etc.. Its more like a spokewheel..\
Here following a graphic example (Elio Nowacki is the author of the drawings so don`t blame it on me LOL)
1. Cut the apical leader when 4 lateral shoots emerge
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2.Several shoots will emerge from the cut point
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3. Select the smallest of the shoots
[img]]http://i1181.photobucket.com/albums/x430/elio2011/RASCUNHO%202016-2017/PN3_zpsou7l9lbc.png[/img]
4. When this new leader send out new shoots you prune the apical leader again and so on
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And this is just for the initial branching.. You also have to prune and develop the lateral branches and ramification!
Hope it helps.. It is very difficult to find information about the process because only one person in the world has done it and he does not uses internet forums and such... There is no guidelines on caring and developing the species but as we develop our own experiments with his experience and help I believe theres lots of great Araurarias bonsais on the way.. Please continue to develop your own.. Maybe someday you will be the first and only on the in your country to have one!
All credits goes do Renato Hoenig and Elio Nowacki!
Regards from Brazil.