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Old July 3, 2012   #14
RayR
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Join Date: Jun 2010
Location: Cheektowaga, NY
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I don't know about increase in yield, I do have a Nardello that got its top chopped off in an accident, I guess I'll find out.
There is some science behind it, plants produce hormones called Auxins at the growing tip, which filter down the stem, the concentration of Auxins is higher the further up the stem you go and act as a growth inhibitor for auxiliary lateral buds. If the the top of the stem (apical bud) is pruned, that cuts off the supply of Auxins and the inhibiting effect, so the lateral buds start growing into new branches I noticed that effect on my damaged Nardello, the lateral buds neat the top of the broken stem started growing fast.
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