Reaction wood

[woodyguy]

Now I think I understand what you think I don't understand (might have got lost there!)

 

But in your final paragraph you're still defining reaction wood as a response to something out of the ordinary. So the off centre pith in most branches in response to gravity, isn't reaction wood? Cause obviously gravity isn't an abnormal circumstance.

[daltontrees]

Wait till my head stops spinning and I will try and get to the bottom of it. I aint trying to define reaction wood, just trying to clarify what the accepted definiton is from reliable sources...

[woodyguy]

Really not trying to be ackward, just interested.

I suppose its hard when a response to something everyday like gravity is the same response you would get to something less common like moving ground. Guess the tree just grows (as you said) and the nomenclature needs to recognise that and not pigeon hole things.

[daltontrees]

Really not trying to be ackward, just interested.

I suppose its hard when a response to something everyday like gravity is the same response you would get to something less common like moving ground. Guess the tree just grows (as you said) and the nomenclature needs to recognise that and not pigeon hole things.

 

I'm interested too. I have been looking into this for almost an hour and the answer is both simple and very complicated. I have made a page of notes that I need to distill into a concise form. Basically not all asymmetrical growth is due to gravity, not all adaptive growth is triggered by gravity and not all wood arising from adaptive growth is reaction wood. Got that? No, me neither. But I almost have. Gimme another day...

[jomoco]

This study on thigmomorphogenesis may be helpful, or not.

 

Thigmomorphogenesis: a complex plant response to mechano-stimulation

 

Jomoco

[daltontrees]

This study on thigmomorphogenesis may be helpful, or not.

 

Thigmomorphogenesis: a complex plant response to mechano-stimulation

 

Jomoco

 

Ahhh, Jaysus, me head's started spinning again...

[David Humphries]

Would be interesting to see (over time) how/if wood changed on a tree that had lost its neighbour due to being loaded (or not) by additional wind force, eh Jules

 

 

 

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[Craiglr90]

One day I hope I totally understand all this haha

[daltontrees]

Would be interesting to see (over time) how/if wood changed on a tree that had lost its neighbour due to being loaded (or not) by additional wind force, eh Jules

 

 

 

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Well'I am hoping to cite Shigo (and Thomas, I think) on this sort of thing soon. Right after the wean has gone to bed, I have cooked and had my dinner, downloaded my survey data from today, sadi hello to wife, watched the Mentalist (my one guilty pleasure). I may be gone for some time...

[daltontrees]

One day I hope I totally understand all this haha

 

I don't think I can explain it but I will soon post a synopsis of the explanations of the big thinkers on the subject.