Author
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WANG, CHIEN |
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Buta, Joseph - George |
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Submitted to: Plant Cold Hardiness Proceedings
Publication Type: Abstract Only Publication Acceptance Date: 8/5/1996 Publication Date: N/A Citation: N/A Interpretive Summary: Technical Abstract: Methyl jasmonate (MJ) was applied to grapefruit and zucchini squash fruit by dipping, pressure infiltration, or vapor fumigation. Control fruit were similarly treated with distilled water. Grapefruit were then stored at 1C and zucchini squash at 5C. Symptoms of chilling injury were negligible in all treatments after 4 weeks of storage. However, after 10 weeks of storage, moderate to severe pitting occurred in the control fruit but the severity of chilling injury was greatly reduced by MJ treatments. The most effective treatments were either pressure infiltration using a 0.1 mM emulsion or fumigation with vapor at saturation. Chilling injury occurred in the control fruit of zucchini squash within 4 days of storage. However, the onset of chilling injury was significantly delayed by the MJ treatments. MJ treated fruit also maintained higher levels of carbohydrates and organic acids than the control fruit. Fructose, glucose and sucrose were found to be the major carbohydrate, while malic acid was the major organic acid. These constituents deteriorated slower in the MJ treated fruit than in the control fruit. |
