บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Correlation of bitter pit on Northern Spy apples with bitter pit-like symptoms induced by Mg2+ salt infiltration.

Burmeister, D. M.; Dilley, D. R.;

Postharvest Biology and Technology Year: 1994 Vol: 4 Issue: 4 Pages: 301-308 Ref: 29 ref.

1994

บทคัดย่อ

Correlation of bitter pit on Northern Spy apples with bitter pit-like symptoms induced by Mg2+ salt infiltration.

ABSTRACT :

 

Northern Spy apple fruits were infiltrated at harvest with 0.1 M MgCl2 in 0.3 M sorbitol with 0.1% Tween 20 and placed at 20 deg C for 10 days, after which the number of Mg2+-induced pits (MgIP) was determined on individual fruits. Induction of bitter pit-like symptoms by MgCl2 was positively correlated with the natural development of bitter pit during storage of untreated fruits from a number of orchards. The untreated fruits were harvested 20 or 10 days before or at optimal maturity for long-term storage, and stored at 5 deg in air for 5 months or at 3 deg in air or controlled atmosphere (3.0% O2 + 3.0% CO2) for 6 months. The endogenous fruit Ca2+ concentration was inversely related to the number of MgIP and to bitter pit development following storage. The results suggest that infiltration with MgCl2 could be used to predict bitter pit development during storage.