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Tuesday, June 20, 2017

A new pecan graft can flower

    In grafting pecan trees, we take a piece of one-year-old wood collected from a mature pecan tree and place it on a seedling rootstock tree. If the scion was collected from a vigorous and healthy tree, that small piece of twig will be programed to produce both catkins and pistillate flowers.
   The photo at right is a Kanza graft I made this spring.  Hanging down over the plastic bag, that I use to wrap the graft union, are catkins produced by the scion. At the very top of the scion's new shoot growth is a cluster of female flowers.
  Whenever I see pistillate flowers forming on a new graft I usually pinch them off immediately. At this point in the tree's life, I want to encourage maximum vegetative growth. Female flower production on a new graft only serves to slow shoot growth.