บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Metabolism of sucrose in apples (Malus domestica Borkh.) as a function of ripeness, cultivar, radiation dose and storage time.

Kovacs, E.; Djedjro, G. A.;

Acta Horticulturae Year: 1994 Issue: No. 368 Pages: 235-242 Ref: 20 ref.

1994

บทคัดย่อ

Metabolism of sucrose in apples (Malus domestica Borkh.) as a function of ripeness, cultivar, radiation dose and storage time.

ABSTRACT :

 

The sucrose content of apple fruits (cv. Mutsu [Crispin]) harvested at 3 stages of maturity (120, 140 or 147 days after full bloom, DAFB) was similar. The sucrose content of fruits irradiated with gamma radiation (1.0 kGy) increased significantly within 1-3 days of irradiation, particularly for the latter 2 stages of maturity. After 20-50 days of storage at 10 deg C the sucrose content of untreated fruits (harvested 120 and 140 DAFB) was higher than that at the beginning of storage but the sucrose content of irradiated fruits (harvested 140 and 147 DAFB) was lower than that at the beginning of storage. Results of trials with cultivars Gloster, Idared and Starking are also reported. With these cultivars there was generally no difference in sucrose content between untreated and irradiated fruits after 21 weeks of storage at 5-8 deg . The sucrose content at harvest was highest in Mutsu fruits followed by Gloster, Idared and Starking fruits but the differences between cultivars decreased during stor

age. Calcium treatment prior to irradiation (4% CaCl2) inhibited the effect of irradiation on sucrose synthesis.