Leaf and fruit seasonal mineral fluctuations, fruit endogenous
ethylene, maturity and quality of 'Starkspur Golden Delicious' apple
(Malus domestica Borkh.) on six rootstocks: Seedling, Mailing (M)1,
M7, M26, Mailing Merton (MM)106, OAR-1, in a high density orchard
with two levels of each of the soil applied potassium (K₂SO₄) and
nitrogen...