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Effect Of Anti-transpirant To Postharvest Physiology And Quality Of Red Fuji Apple Under Normal Temperature

Posted on:2009-11-13Degree:MasterType:Thesis
Country:ChinaCandidate:Z WangFull Text:PDF
GTID:2143360248456071Subject:Forest cultivation
Abstract/Summary:PDF Full Text Request
To Apple for the research material, Spraying of different types and concentrations of Antitranspirant to Storage the fruit in physiological indices, indicators and breathing patterns and the intensity of ethylene production rate changes in the law, and so on. The results show that1. The storage period of fruit water loss rate lead reduces to elevates, the anti-transpiration stores the earlier period in the fruit to be able to reduce the fruit dehydration rate effectively, but can not effect obviously after 42days. Transfilm10%, Wilt Proof 7.5% and Vapor Gard 12.5% effect most significantly, reduced fruit water loss rate of 60% 55% and 40%. Spraying Antitranspirant effect to be best by fruit storage within a week.2. The storage period of fruits hardness gradually reduce, Antitranspirant in the pre-storage fruit, the medium-term storage and storage have significantly delayed the role of the hardness of the entire storage process, to deal with Transfilm10%, Wilt Proof7.5% and Vapor Gard12 .5% of the most obvious effect, pre-storage fruit hardness increase of 15%—22%, medium-term storage of fruits hardness increase 14%—21% and late fruit hardness storage increased by 24%—34%.3. The storage period of fruit concentration of soluble solid content decreased gradually, Deal with the Antitranspirant pre-storage fruit, the medium-term storage and storage are significantly alleviate the latter part of the fruit to reduce the concentration of soluble solid content in various fruit storage period.Transfilm10%, Wilt Proof7.5 Vapor Gard12.5% are most effective, pre-storage fruit concentration of soluble solid content increase by 7 to 10 percent, medium-term storage of fruit concentration of soluble solid content increase of 9%—13%, terminal period of storage fruit concentration of soluble solid content increased 6%—12%.4. The storage period of soluble sugar content of fruit with a storage time of the first increase after the lower trend, spraying Antitranspirant of storage pre-soluble sugar content of fruit was not obvious, but the fruits of the medium-term storage and storage after spraying Antitranspirant can significantly increase the soluble sugar content of fruit and fruit storage in the mid-and late Transfilm10%, Wilt Proof7.5% and Vapor Gard12.5% treatment effect most significantly, the medium-term storage of fruits soluble sugar content increased 28%—35%, storage late fruit soluble sugar increase in 19%—28%. 5. The storage period of fruit acid content can be decreased gradually, spraying Antitranspirant could effectively delay the fruit acid content in the fall, but Transfilm in the medium-term storage effects are not obvious. Early in the fruit storage and storage late Transfilm10%, Wilt Proof7.5% and Vapor Gard12.5% treatment effect most significantly, early fruit can be stored in acid content increased 13%—27% and the medium-term storage of fruit acid content may increase 21 %—27% and the latter part of the fruit can be stored acid content increased 16%—24%.6. The storage period of the fruit content of MDA gradually increased, spraying Antitranspirant fruit MDA content higher than the previous level of control, the medium-term storage of fruits MDA content below the level of control and slowly increased, storage late Antitranspirant still able to effectively reduce the fruits of the content of MDA. In the course of fruit storage, Transfilm10%, Wilt Proof7.5% and Vapor Gard12.5% deal with the effect most significantly, pre-storage fruit MDA content higher than 70 percent and over the medium-term storage of fruits MDA content dropped 18%—53% and the content of MDA in the latter part of the fruit dropped by 11%—50%.7. The storage period of fruit ethylene production rate and respiratory rate rise gradually after the fall and 30 days at a peak. Spraying Antitranspirant can decrease the respiratory peak rate of fruit and ethylene production peak rate of 33%—48% decline and postpone peak around 10 days.
Keywords/Search Tags:Red Fuji, apple antitranspirant, normal temperature water loss rate, respiratory rate, Ethylene release rate
PDF Full Text Request
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