I have a tree producing some clusters of 7, 8 and one 9-pecan cluster.What is...
I have a tree producing some clusters of 7, 8 and one 9-pecan cluster.
What is this due to?
Outside United States
There are many pecan varieties, and one of the genetic differences among varieties is the number of nuts per cluster. The most common cluster size is 3 to 4 nuts. Certain varieties though have higher cluster sizes. Varieties known to have this trait include: Cherokee, Barton, Cheyenne, Lakota, Shoshoni and many others.
High numbers of nuts per cluster is a liability for producing high quality kernels. In the US, growers strive to achieve modest crops of pecans with moderate cluster size through tree canopy hedging and mechanical crop thinning in mid-growing season with trunk shakers.