Effect of boron fertilization on the storage ability of apples (Malus domestica Borth.).
Wojcik, P.; Mika, A.; Cieslinski, G.;
Acta Horticulturae Year: 1999 Issue: No. 485 Pages: 393-397 Ref: 10 ref.
1999
บทคัดย่อ
Apple trees (cv. Sampion grafted on M.26 rootstock) were planted in spring 1991 in central Poland at 4 x 2 m on a sandy loam soil with 0.36 ppm of available B in the top layer (0-20 cm). Three B treatments were applied annually in 1994-96: (1) B applied to the soil in the form of boric acid (2 kg B/ha), (2) 3 foliar sprays (0.4% boric acid solution) applied before flowering, or (3) 3 similar foliar sprays applied after flowering. Control trees received no B fertilizer. Harvested fruits were stored for 150 days at 1-2 deg C, 88-90% RH. B application had no effect of fruit maturity at harvest or on weight loss during storage. However, treatment (3) resulted in greater fruit firmness after storage and lower incidences of bitter pit, internal breakdown and Gloeosporium-rot during storage, compared with the controls and other treatments.