You're probably right Jon.  It's taller than I would have thought.  Where
does the .9 come from?



2011/3/26 Jon Clements <[email protected]>

> 0.9 X 18 feet = 16.2 feet, if you want to maximize production.
>
> :-)
>
> Sent from my iPhone
>
> On Mar 26, 2011, at 3:21 PM, Arthur Kelly <[email protected]> wrote:
>
> Generally (NNW/SSE) North/South rows, M26 Mac, 8X18, slender pyramid form.
> What tree height?
>
> Art Kelly
> Kelly Orchards
> Acton, Me
>
> 2011/3/26 maurice tougas < <[email protected]>
> [email protected]>
>
>> I would agree with Jon, but add a couple of other considerations that I'd
>> use to fine tune your "rule".
>>
>> The first would be row orientation. North / South oriented rows will
>> receive more uniform light exposure than trees  East / West, and so perhaps
>> an extra percentage of height could be added.
>>
>> Second, training system  results in differing depth or density of canopy,
>> and so a system with wider row spacing may result in longer branches which
>> may result in greater shading in the interior of the tree. Systems such as
>> tall spindle, super spindle and maybe fruiting wall systems result in
>> narrower canopies and so there is less depth to the canopy resulting in less
>> distance sunlight must travel to trunk. That said, these systems may well
>> have a more dense canopy than more open, widely spaced trees when pruned
>> properly.
>> The narrower canopies I believe have the advantage, and so the ratio of
>> height to row spacing may again allow for a slightly taller tree.
>>
>> Thirdly, consider hours of sunlight per growing season. I've never seen a
>> "zone chart" for this. Might be an interesting project for some statistician
>> (Wes!), but developing some sort of sunlight zone similar to traditional
>> hardiness zones should influence height/width ratio.
>> Certainly the number of hours of sunlight, and, it's intensity on average,
>> received in Pasco,WA or Hastings, NZ  is appreciably higher than
>> Northborough,MA or Acton,ME and has an influence on ideal height/row width
>> ratio.
>>
>> Mo Tougas
>> Tougas Family Farm
>> Northborough, MA
>>
>>
>> On Fri, Mar 25, 2011 at 11:50 PM, Jon Clements <<[email protected]>
>> [email protected]> wrote:
>>
>>> If you are growing hi-density apples, then tree height should be no
>>> greater than between-row width. Slightly less (0.9) is even better.
>>>
>>> Jon
>>>
>>> 2011/3/25 Arthur Kelly < <[email protected]>
>>> [email protected]>:
>>>  > What do you all think about required row spacing for various tree
>>> heights?
>>> >  Should row width be 1.1, 1.3 or 1.5 X tree height?
>>> > Art Kelly
>>> > Kelly Orchards
>>> > Acton, ME
>>> > _______________________________________________
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>>> >
>>>
>>>
>>>
>>> --
>>> JMCEXTMAN
>>> Jon Clements
>>> <[email protected]>[email protected]
>>> aka 'Mr Liberty'
>>> aka 'Mr Honeycrisp'
>>> IM mrhoneycrisp
>>> 413.478.7219
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>>
>>
>>
>> --
>> Maurice Tougas
>> Tougas Family Farm
>> Northborough,MA 01532
>> 508-450-0844
>>
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