The Physiology of Growth in Apple Fruits VII. Between-Tree Variation of Cell Physiology in Relation to Disorder Incidence

Mean cortical cell size, soluble and protein nitrogen per cell, preclimacteric respiration, mean fruit size, and incidence of disorders have been studied for fruit of each tree in a plot of 35 trees of Jonathan variety. These trees were remarkably uniform with regard to soil, aspect, tree size, and pollinating variety, but provided a range of mean fruit size per tree.