From the bat I'm gona say it started off as guess work but i've sort of managed to come up with a system. This plant has been growing without topping or FIMming or anything, just sheer LST'ing.
In a quick summary, so far Ive just tied the main stalk down from a very early age and grown the plant flat, tying down new branching as soon as they emerge.
It goes a lil something like this:
Main stalk tied down ----> creates secondary branching from nodes which grow towards light.
Sec. branching tied down -----> creates tertiary branching from nodes on sec. branching.
Tertiary branching tied down ----> creates quaternary branching from nodes on tertiary branch.
And so on and so on. Think of a tree diagram... every step u get a whole load more options, likewise in this grow, every time i grow a new branch, out of that branch will grow like another 10 tops (depending on the size of branch/where on plant it is)
This is achieved by constantly tying her down causing her auxin distribution to change, something i'll leave to someone else to explain in more depth!
It takes a lot of work, i used to spend about an hr
everyday tucking leaves when she was smaller. This slowed her growth for various reasons (read journal) so i began leaving her for about 4-6 days at a time if not more, then going in and tying her down, this time
without clipping her leaves off, but instead going out of my way to find a place to tuck them under the screen. Ive been doing this for the last 3 weeks or something and seen good results, growth is faster and steadier than before.
Less clipping = less stress = faster growth and more energy for growth (stored in leaves).
Every time a new branch grows to say... 2", i'll tie it down horizontally and grow it across, instead of up. Sometimes as soon as the branch is long enough to bend over i'll do just that, even if its only an inch long, all depends how i feel that day. I could easily leave such branches for another 4-7 days before beginning to train them but i want to keep everything flat.
The main stalk is a beast, and needs to be tied down early before she gets too thick and starts taking back control of the direction she grows in. She should be tied down hard, i made the mistake of not tying her down hard enough at one point and as a result now have a lump in my canopy of where the main stalk goes up and back down again. Now she's rock hard and cant be pulled down. The branches that grow out of here will have a good 2 inch head start on ones below so will need additional tying down and training when they start growing.
If you stick to the following "rules" u should be able to do what ive done.
- Any fan leaf around the size of/bigger than a can of coke (footprint), gets tucked, OR, if its covering up a node/branch site.
- Try and keep as many leaves as possible, tuck them under the screen where-ever possible, if for some reason its not possible then either tie it down somehow, or, if a branch has already started to grow out of that node, then u can clip that fan leaf off. Earlier in the grow when i used to do my weekly deforestation, often i clipped off fan leaves before branches had started growing from the node and surprise surprise, no branch ever grew from there! So wait till it starts emerging then clip off and it should continue to grow provided its got direct light. I used foilar boosters like Halo and Groigen to try and get these branches to grow up quicker.
- Tie down stuff nice and early and constantly try and expose as many nodes/branch sites to direct light (lots of tucking and tying!)
The aim of the weekly tie down and tuck:
- To get the branching of the plant trained whilst the branches are young, thin and pliable.
- To fill the screen.
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Expose new nodes, branches to light to create a dense canopy of tops. This is the reason why i began tying down branches ASAP, it gave a chance for EVEN YOUNGER branching that maybe has JUST started to emerge from a node below to receive direct light and hopefully catch up to the height of the branch i had to bend over to un shade it.
- Improve air circulation going through the plant/canopy.
When tying down branches:
- Pick a branch who's top is quite close to your screen (i.e a smallish branch), and say all branches above this top will get bent over. In the case of my plant, ive attempted to make that level the top of my screen! So literally every single branch was tied down as early as possible.
- When tying down the new node, you can just reuse the tie off that branch from the previous week, you're just moving it along. If you want a super flat plant then maybe leave these tie's on from previous weeks to prevent her secondary branches from pulling the primary branch up a little when she grows towards the light.
- You don't want to tie them down so tight it damages the branch, or is so restricted it can't move at all or grow. The tie should be strong and tight, but allow the branch to grow a little in diameter. Tying a branch too tight will restrict its growth i'm sure.
- Sometimes i get a tie and create 2 hooks on the ends, i hook one end to a K'nex piece and the other end to the branch. That way it holds the branch in position but at the same time allows plenty of room for it to grow as it pleases.
- Try and plan where and how branches will grow. This is hard, obviously u can only plan to a certain degree, but directing branching nice and early will make life a lot easier, especially if it prevents you from untying and retying stuff.
Ive included some full resolution pictures of my canopy, so if you click on the thumbnail ive labelled, it'll take you to imageshack. Click that picture again and it'll show u the full size version which unless ur looking at on a Plasma TV, will be pretty zoomed in but clear. You should hopefully be able to see exactly where my tops are, how many i have, emerging ones, ect ect. Hopefully its useful to see how ive tied mine down and directed my branching.
Illustration of new branching emerging and how related fan leaves are tucked down and under (sorry for thin circles, dont know how to make lines thicker):
Branches such as the ones above will grow out of these nodes and be ready to tie down in about a week or something, provided they have direct light and aren't shaded. I tuck so much to encourage branches like these to grow.
Example of how i tie some branches by making a double ended hook, and using this to tie down one branch to an already tied down branch.
Horizontal branching that's bending back up towards the light and who's tops will need retying at some stage
Example of another branch growing out of a horizontal branch
Full Resolution Canopy Shots (click thumbnail and then click picture on imageshack)
This technique is by no means perfect, and i'm still learning so much and trying to apply different bits of my knowledge to this grow on a daily basis. I'm sure more experienced trainers will read this and have a fair few comments, and i can't encourage this enough. I'd love to know what i'm doing wrong, what i could be doing better ect. There is lots that ive done that i'd change if i were to do another grow like this, especially now i'm a little more clued up and experienced in major training.
Anyway hope this was useful if not at least a little interesting.