บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Postharvest quality of apples grown in the Aland Islands.

Dris, R.;

Acta Horticulturae Year: 1998 Issue: No. 466 Pages: 35-40 Ref: 14 ref.

1998

บทคัดย่อ

Postharvest quality of apples grown in the Aland Islands.

A field trial was established at 4 sites in the Aland Islands, Finland in 1995. The apple cultivars Transparent Blanche, Samo, Raike, Red Atlas, Lobo and Aroma were sprayed with CaCl2 (2 g/litre) during fruit development (9 times at 10-day intervals starting at full bloom). Fruits were stored for 4-6 months at 2-4 deg C and 90-95% RH. During storage, firmness, fruit diameter and titratable acidity decreased, and the sugar/acid ratio increased. The incidence of physiological disorders was highest in Red Atlas and Raike, and lowest in Lobo. Ca treatment increased fruit N and Ca levels and decreased the ratios K/Ca, P/Ca and Mg/Ca. Delayed ripening in Ca-treated apples was indicated by an increase in juice acidity and a decrease in sugar/acid ratio. Ca treatment reduced the incidence of physiological disorders in Red Atlas and Aroma.