Field Performance of ‘Summerland Red Mclntosh,’ ‘MacSpur Mclntosh,’ ‘Empire’ and ‘Idared’ On Six Rootstocks. jpom [Internet]. 1989 Oct. 1 [cited 2026 Feb. 6];43(4):159-64. Available from: https://journal.americanpomological.org/index.php/jofaps/article/view/1821