Journal of the APS Vol 72 Number 3 July 2018

P omegranate

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About The Cover:  ‘Emma K’ black walnut ( Juglans nigra ) is a commonly-grown cultivar for commercial nut production in the Midwestern region of the United States. This cultivar was selected for its large kernel size (> 35% by weight), relatively thin nut shell, and productivity.  Grafted trees may start bearing a few nuts in the second year after planting, whereas seedlings do not commonly produce a nut crop until seven years after planting. Black walnuts are mechanically harvested with a tree shaker, collected, hulled, and then dried before cracking. About 13.7 million kg of black walnuts are harvested annually from 15 states, resulting in 1.3 t of marketable kernels. Photo by Michele Warmund, University of Missouri.