Influence of nitrogen and bagging on fruit quality and mineral concentrations of BC-2 Fuji apple.
Fallahi, E., Colt, W. M., Baird, C. R., Fallahi, B. and Chun IkJo
HortTechnology. Volume 11, Number 3, 2001. Pages 462 – 465.
2001
บทคัดย่อ
The influence of three rates of nitrogen (N) and fruit bagging on fruit peel and flesh mineral concentrations and fruit quality in 'BC-2 Fuji' apple (Malus domestica [Malus pumila]) trees on Malling 9 was studied in a field experiment conducted in Idaho, USA during 1991-96. Increasing N application decreased fruit peel red colour, fruit N, iron and manganese. Fruit from trees receiving 10.72 oz (303.9 g) N per year had higher evolved ethylene and respiration during poststorage ripening tests. Bagging of fruit reduced fruit peel red colour, soluble solids concentrations, and dry weight compared to non-bagged fruit. Bagged fruit had higher N, potassium, and copper than non-bagged fruit. Fruit peel had a greater percentage of dry weight, and higher concentrations of all tested minerals compared to fruit flesh.