According to the color measurement of double-layer tricolor bags in 2022, the L* value showed a decreasing trend with the delay of bagging time.
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Effects of Different Pre-Harvest Bagging Times on Fruit Quality of Apple.
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The sentences
Interestingly, both the 2021 and 2022 data show that the browning rate and browning index of Ruixue apple after triple bagging treatment displayed an increasing trend at 90 days after full bloom, followed by a decrease, which is consistent with the changes in POD activity, and therefore, the browning of Ruixue apple reflects a similar lignin biosynthesis process as that observed in previous studies [ 40 ].
In this study, the number of aroma components in the special bag did not show a significant trend in both years, and the number was higher than that of the double-layer tricolor bag, which may be due to the higher light transmittance of this fruit bag, which improves the synthesis of aroma substances [ 47 ].