บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effects of 1-methylcyclopropene and controlled atmosphere storage on ripening and pathogen-induced decay development in ‘Golden Delicious’ apples

R. Saftner, J. Abbott, W. Conway, and C. Barden

Proceedings of 26th International Horticultural Congress. Volume of Abstract . Toronto, Canada, 11-17 August, 2002. Abstract S09-P-46. pp. 238.

2002

บทคัดย่อ

Effect of 1-Methylcyclopropene and Controlled Atmosphere Storage on Ripening and Pathogen-Induced Decay Development in 'Golden Delicious' Apples

1-Methylcyclopropene (1-MCP) was tested for its ability to inhibit ripening and maintain quality and disease resistance of ‘Golden Delicious’ apples (Malus x domestica Borkh.) during air storage at 0 oC for 5 month and/or 20 oC for 7d. The 1-MCP treatment was 1*L*L-1 for 17 hours at 20 oC applied at harvest or following cold storage. For comparison, untreated fruit were stored in air or a controlled atmosphere of 1.5 kPa O2 and 2.5 kPa CO2 for the same temperature and time periods. At harvest 1-MCP application and CA storage similarly decreased decay development cauaed by wound-inoculated Pencillium expaansum Link, Botrytis cinerea Pers.:Fr., and Colletotrichum acutatum simmonds (teleomorph glomeralla cihulata (Stonem.) spauld. & Schrenk). Treatment with 1-MCP following cold storage had no effect on decay development at 20oC . At harvest 1-MCP application wasmore effective than CA storage at delaying ripening ass indicated by better retention of green peel color, titratable acidity, Magness-Taylor and compression firmness, and the reduced respiration, ethylene production rate and volatile levels that were observed upon transferring the fruit to 20 oC. Following 5 months cold storage, the harvest 1-MCP application maintained the shape of the compression force/deformation curve similar to that of fruit at harvest ; as did CA storage, but at a lower force profile. Treatment with 1-MCP following cold storage had little to no effect on fruit ripening characteristics at 20 oC. The results indicated that prestorage treatment with 1-MCP may provide an effective alternative to CA for reducting decay development and maintaining postharvest quality of ‘Golden Delicious’ apples.