N ying chi is the main apple production base in Xizang.Due to the influence of strong light and ultravioletrays,the fruit colo-ring is uneven,the color difference isobvious,the peel is thick,and sunburn is common,whichseriously affects the quality of apples.The results of thisexperiment indicate that using inner infrared brown doublelayer fruit bags and appropriately delaying the removal time-of inner bags can promote fruit coloring,reduce physicadamage such as sunburn,and effectively improve applequality and economic benefits.
维普
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