Tuesday, October 25, 2011
Shuck split date and young pecan trees
In testing new cultivars, we are always anxious to discover the average date of shuck split. However, we have learned to be a little patient before coming to any conclusions about ripening time. In the photo above, you see two clusters of pecans. Both clusters were collected on the same day and from the same cultivar--Lakota. The cluster on the left was taken from a young tree (4 inches in diameter) while the one on the right was taken from a tree 28-years-old (12 inches DBH). In previous posts, I've talked about tree age and drought stress and how pecan trees grow to dominate the landscape. Here is another example of how young trees can differ from mature trees.
It is no wonder why it takes so long to develop and test a new pecan cultivar. Only trees that have grown large enough to "dominate the landscape" provide reliable nut size and maturity date information.