บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effects of Ca-chelate preharvest treatment on postharvest ripening of kiwifruit.

Xie Ming; Kawada, K.;

Acta Agriculturae Zhejiangensis Year: 1996 Vol: 8 Issue: 4 Pages: 236-241 Ref: 14 ref.

1996

บทคัดย่อ

Effects of Ca-chelate preharvest treatment on postharvest ripening of kiwifruit.

Kiwifruit cultivars Hayward and Koryoku, growing in an orchard in Kagawa, Japan, were treated with 200 ppm Ca-chelate by foliar application (6 litres/plant) 45-50 days after anthesis. Fruits were harvested in November, wrapped in plastic film, placed in plastic containers and held at 25 deg C until ripe for eating. Ca treatment significantly increased pulp Ca concentration, it maintained flesh firmness, inhibited the increases in water-soluble pectin and ammonium-oxalate-soluble pectin and the decrease in hydrochloric-acid-soluble pectin, reduced CO2 and ethylene evolution, and retarded the rate of starch degradation and decreases in organic acids and ascorbic acid. The results indicate that the Ca-chelate treatment could delay fruit ripening and softening and prolong the shelf-life of kiwifruits.