Effects of Rootstock on Productivity and Pruning Requirements of ‘Starkspur Supreme Delicious’ Apple Trees in the NC-140 Cooperative Planting. jpom [Internet]. 1991 Oct. 1 [cited 2025 Dec. 13];45(4):242-6. Available from: https://journal.americanpomological.org/index.php/jofaps/article/view/1925