บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

The effect of pre and postharvest calcium applications on ‘Hayward’ kiwifruit storage ability.

Antunes M.D.C., Neves, N., Curado, F., Rodrigues S., Panagopoulos T.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p 43.

2004

บทคัดย่อ

The effect of pre and postharvest calcium applications on ‘Hayward’ kiwifruit storage ability.  The benefits of calcium applications pre and postharvest o­n fruit storage ability have been mentioned in the bibliography.It was objective of this work to study the effect of calcium preharvest application in two different forms and calcium chloride application postharvest o­n ‘Hayward’ kiwifruit storage ability.

Kiwifruit vines were sprayed with 0.03% Calcium o­ne, four and five months before harvest, with CaCl2 or CaO.The control did not have any treatment.After harvest, half fruits were dipped for 2 min in a solution of 1% CaCl2, left to dry and stored at 0 °C.The other half was stored at the same temperature without any treatment.The commercial yield and firmness was lower in fruits treated with CaO preharvest than in the other treatments.The °Brix was not affected by treatments.During storage, fruits dipped in 1% CaCl2 softened slower than fruits not treated.Weight loss was higher in fruits treated with CaO preharvest.

This work suggests that immersion of kiwifruit in 1% CaCl2 postharvest benefits storage life capacity; preharvest spaying with CaCl2 seems to be better than with CaO.However, we have to try higher calcium concentrations in order to get better results in storage ability but, without causing toxicity o­n the vines.