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采前因素对巨峰葡萄贮藏影响很大。１９９８北宁市４～９月份降水量为１９９７年的３．２倍，日照比１９９７年降低了１５．７９％，１９９８年巨峰贮藏１００天腐烂率为６．９３％，而１９９７年贮藏１５０天仅为１．６％，采前增色素的应用能明显增加贮藏果落果率，浓度越大，喷施距采收期越近，落果越严重。巨峰果穗紧密度和一致性是果园管理水平的重要标准，紧穗葡萄比松散型果穗具有较高的贮藏性。保鲜袋以０．０４～０．０５ｍｍＰＶＣ、贮藏温度以－０．５～－１．０为佳，两段释放功能的新型复合葡萄保鲜剂保鲜效果好。
Pre-harvest factors have a great influence on the storage of Kyoho grape. In 1998, the precipitation of Beining from April to September was 3.2 times of that of 1997, and the sunshine was 15.79% lower than that of 1997. The decay rate of Judaic in 100 days was 6.93% in 1998, while that in 1997 was only 150 days. Was 1.6%. The application of pre-pigmented pigment could obviously increase the fruit drop rate, and the greater the concentration, the closer to harvesting, the more serious the drop fruit. Jufeng ear tightness and consistency is an important standard of orchard management level, tight grapes than loose ears with high storage. Preservation bag with 0.04 ~ 0.05mmPVC, storage temperature of -0.5 ~ -1.0 is better, the release of two new features of the new composite grapes Preservative effect.