Various Measures of Tree Vigor, Yield, and Yield Efficiency of Apple Trees in the 1990 NC-140 Systems Trial as Influenced by Location, Cultivar, and Orchard System. Journal of the American Pomological Society, [S. l.], v. 56, n. 4, p. 208–214, 2002. DOI: 10.71318/apom.2002.56.4.208. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/2489. Acesso em: 15 dec. 2025.