Bretts wrote:
Again Jow as far as I can fathom the discussion is about starting fresh compared to using existing stock with bad roots. In this situation it would only be fair to consider a well tapered trident with bad roots.
What i am trying to say is you wont get a well tapered trident trunk with bad roots... you need good roots to grow good tachiagari (lower trunk). If it has a one sided root ball or one dominant root it will pull the trunk out in that area and thicken the area of trunk adjacent to it and those areas with poor roots will not thicken at the same rate hence leaving you with a poorly tapered trunk.
If you layer one of these tridents with poor roots you will end up with a defective trunk with good roots... not a good trunk with good roots as you might have got growing from seed and doing correct root work and growing techniques.
Therefore layering is only good for certain situations... At least that's my opinion of why those growing in the ground in Japan don't layer off every tree, Tachiagari.
Also you should read a few articles as to the time frame between layering and having the roots age to match the trunk enough to be accepted at kokufu. In large trees its not such a quick proposition.
I know for a fact there is at least on grower famous for the fact he grew maples from seed to Kokufu in under 15 years... and these are big trees. I am guessing the beech you linked to would have a similar time frame to get from initial layer to exhibition standard.