Concentrations of Amino Nitrogen and Soluble Carbohydrates in Bleeding Sap Collected at Bud Break of ’Cabernet Franc’ and ’White Riseling’ Grapevines Growing on Four Clonal Rootstocks. jpom [Internet]. 1998 Oct. 1 [cited 2026 Feb. 9];52(4):220-5. Available from: https://journal.americanpomological.org/index.php/jofaps/article/view/2325