This time of year I like to monitor pecan kernel development pretty closely for two reasons. The first is to determine when nuts reach the full water stage which is the optimum time for shaking trees to reduce an excessive nut crop. Then when kernels transition into the dough stage, I'll know when pecan weevils will begin laying eggs inside the nut.
The first set of cultivars I placed in a photo together are the progeny of Major.
Kanza, Lakota, and Hark all dripped out liquid endosperm when cut open but the kernels inside have not yet reach the full water stage.