Wednesday, September 21, 2016
Late season pecan kernel filling
The photo above shows two cultivars. Pawnee nuts are shown on the left and Kanza on the right. The nuts collected last week are shown above the nuts collected this week.
Now let me point out some key differences between last week's and this week's pecans. First, note that the Pawnee shuck has separated from the shell. Pawnee should be in full shuck split by the end of this week. Now focus on the packing material between the kernel halves and the material that fills the dorsal groves of the kernel. On September 14 this packing material was orange in color and still spongy in character. By September 21, the kernels of both Pawnee and Kanza had expanded significantly and compressed the in-shell packing material. The partition between the kernel halves became thinner, changed color, and became harder. The packing material in the dorsal grooves also became compressed and turned brown in color.