WSU Tree Fruit Research & Extension Center

Postharvest Information Network

Saturday, April 29, 2017

WSU-TFREC/Postharvest Information Network/Quality of Gala Apples as Related to Maturity, Storage Atmosphere
and Storage with Bartlett Pears



Quality of Gala Apples as Related to Maturity, Storage Atmosphere
and Storage with Bartlett Pears


Report

Controlled atmosphere (CA) storage for 45 or 90 days following harvest reduced quality losses for both Gala apples and Bartlett pears as compared to fruit from cold storage. Gala apples and Bartlett pears stored together in CA maintained good quality and compared favorably with apples or pears stored alone. After storage, Gala apples and Bartlett pears from CA were firmer, had higher acidity and less color change than fruit from regular atmosphere (RA) storage. Gala apples in CA at 1% O2 and 1% CO2 were comparable in quality to apples in CA at 2% O2 and 3% CO2. Apples in either CA environment were superior in quality to apples from RA. No quality differences were evident between pears from either 1% O2 and 1% CO2 or 2% O2 and 3% CO2, and pears from either atmosphere were superior to pears from RA. Early harvested apples or pears maintained a higher level of quality in CA than later harvested fruit. A combination of 45 days CA followed by 30 days RA produced Gala apples that were superior in quality to apples from 75 days RA.

Dr. Steve Drake

USDA, ARS Tree Fruit Research Laboratory
1104 N. Western Ave., Wenatchee, WA 98801
FAX: (509) 664-2287

11th Annual Postharvest Conference,
Wenatchee, WA
March 15-16,  1995

Tree Fruit Research & Extension Center, 1100 N Western Ave, Washington State University, Wenatchee WA 98801, 509-663-8181, Contact Us