
Keywords: حداکثر فلورسانس کلروفیل; Nutrient deficiency; Dopamine; Ionome; Root system architecture; Malus hupehensis; APX; ascorbate peroxidase; AsA; ascorbic acid; Chl; chlorophyll; Ci; intercellular CO2 concentration; DHAR; dehydroascorbate reductase; Fm; maximum chlorophyll fluorescence