Abstract
Information about 1-MCP application time on pears is crucial to optimize the schedule of treatment in commercial practice. In the present work, the effect of a 3, 5 and 7 d delay of 1-MCP treatment after harvest on ‘Bosc Kobak’ pears was investigated, with an emphasis on shelf life. Fruit was treated with 1-MCP (625 ppm) on the 3rd, 5th and 7th d after harvest for 24 h and then kept at 20 °C for 14 d or stored at 1 °C in normal atmosphere for 6 months. Ethylene, carbon dioxide production, flesh firmness, soluble solid content and color index was determined after 4 and 6 months of cold storage and an additional 7 d of shelf-life at 20 °C. Pears treated with 1-MCP had lower values in ethylene and carbon dioxide production after storage compared to the control group; in particular, fruit treated on the 3rd d after harvest obtained the lowest values. Moreover, flesh firmness of treated samples had a higher value than that of the others after cold storage and subsequent 7 d of shelf life at 20 °C. In addition, fruit treated on the 3rd d after harvest exhibited the slower change in surface color than that of other groups. However, 1-MCP treatment on the 5th and 7th d after harvest had a minor effect on firmness and surface color change after a long storage period. The effect of 1-MCP treatment depends on the time from harvest to application. The application of 1-MCP on the 3rd d after harvest obtained the highest efficacy. The results of this study provided information on scheduling the commercial 1-MCP application for ‘Bosc Kobak’ pears.
Highlights
IntroductionThe ‘Bosc Kobak’ pear is one of the most important cultivars grown in Hungary; it is harvested from mid-September to mid-October [1]
Publisher’s Note: MDPI stays neutralThe ‘Bosc Kobak’ pear is one of the most important cultivars grown in Hungary; it is harvested from mid-September to mid-October [1]
This study found that treatment time is one of the important factors influencing the efficiency of 1-MCP application on ‘Bosc Kobak’ pears
Summary
The ‘Bosc Kobak’ pear is one of the most important cultivars grown in Hungary; it is harvested from mid-September to mid-October [1]. Different cultivars were found to respond to 1-methylcyclopropene (1-MCP) treatment differently [2,3,4,5]. Investigation of the delay of 1-MCP application is missing on this specific cultivar. Even though the application of 1-MCP has a vital role in preserving the fresh produce for long period, its effectiveness depends on various factors including maturity, cultivar, 1-MCP concentration, temperature treatment and time from harvest to application [2,3,4,5]. The response of fruit to 1-MCP is related to ethylene production at the time when
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