บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Optimum harvest date for different apple cultivars in the 'Bodensee' area.

Streif, J.;

COST 94. The postharvest treatment of fruit and vegetables. Determination and prediction of optimum harvest date of apples and pears. Proceedings of a meeting, Lofthus, Norway, 9-10 June 1994. Year: 1996 Pages: 15-20 Ref: 12 ref.

1996

บทคัดย่อ

Optimum harvest date for different apple cultivars in the 'Bodensee' area.

During 8 harvest and storage seasons the following fruit parameters were evaluated to determine the optimum harvest date of apples for long-term storage: fruit firmness (F = kg, with 11 mm probe), soluble solids (R = refractometer value, %) and starch conversion stage (S = 1-10). For all 3 parameters a single maturity index was calculated by the formula F/(R x S). It was found that F/RS values were specific for each tested cultivar but rather independent from influence of the orchard or annual climatic conditions. The following F/RS values as an average of 8 seasons were found for the tested cultivars: Elstar 0.30; Cox's Orange 0.21; Boskoop 0.15; Golden Delicious 0.10; and Jonagold 0.07.