Report for 1970, Horticultural Research Institute of Ontario. Journal of the American Pomological Society, [S. l.], v. 26, n. 1, p. 24–24, 1972. DOI: 10.71318/apom.1972.26.1.24. Disponível em: https://journal.americanpomological.org/index.php/jofaps/article/view/1103. Acesso em: 11 dec. 2025.