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Re: Fwd: plant communication

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+++++++++++++++  I don't know guys think of a Redwood Tree.  Were talking a
100+ft.  Depends on the speices.  Granted a huge exterior plant is not
necessary for a monster perhaps because a massive root
system.************Brock

>Dan,
>
>Does anybody know how much of the root and leaf system actually feeds a
>given pumpkin?  I would expect that there is some distance, say 10-15 ft,
>beyond which the pumpkin and the roots/leaves are simply not in
>communication. No fluid flow, no transmittal of nutrients, nothing.
>If you lopped off everything further away, your pumpkin would grow just as
>big.
>
>One piece of supporting evidence is that fact that 700 lb pumpkins can come
>off of 450 sq ft plants - you don't need more leaf mass under some growing
>conditions.   The rule of thumb "don't grow green" gets at the same
>intuition.
>
>Any plant biologists out there want to run a test?  Add a radioactive
>tracer (or a powerful dye) to your water, apply in a specific spot, wait a
>few hours (days?), walk 10 ft and measure.
>
>If we knew the answer to this question we could do a better job pruning our
>vines.
>
>        Dan Shapiro
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