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美国农业灌溉研究推广中心对苹果树(金冠)采用滴灌和喷灌处理。在果实采收和贮藏一段时期后,进行鉴定,比较两种处理对果实品质的影响。在果实色泽方面,采收时,滴灌的果实绿色部分较少,黄色部分较多,成熟度较高;贮藏5个月后,两种处理的果实色鲜度一直无明显区别。在果实内质方面,采收时,滴灌的果实可溶性固型物和苹果酸含量均较高,在贮藏过程中,苹果酸含量降低的速率比喷灌快得多。因此,贮藏5个月后进行测定,经滴灌处理的苹果酸含量小于喷灌的含量,此时的可溶性固型物/苹果酸比率大于采收时的比率。这样,他们认为会引起在一些国外商品市场上,经滴灌的苹果贮藏一段时间后,由于风味缺乏而失去竞争能力。研究家们通过试验还表明:无论是采收时还是采收后,滴灌的果
US Agricultural Irrigation Research and Extension Center for apple trees (Golden Delicious) using drip irrigation and sprinkler irrigation. After the fruit was collected and stored for a period of time, the identification was carried out to compare the effects of the two treatments on the fruit quality. In the aspect of fruit color, drip irrigation had fewer green parts, more yellow parts and higher maturity when harvested. After 5 months of storage, there was no significant difference in freshness between the two treatments. In the fruit endoplasm, when harvesting, the contents of soluble solids and malic acid in drip irrigation were higher, and the content of malic acid decreased more rapidly than sprinkling during storage. Therefore, after 5 months of storage, the content of malic acid after drip irrigation was less than the content of sprinkling irrigation. At this time, the ratio of soluble solid / malic acid was higher than that at harvest. In this way, they think it will lead to the loss of competitiveness due to the lack of flavor after some dripped apples have been stored for some time in some foreign commodity markets. The researchers also showed that the experiment: whether it is harvesting or harvesting, the fruit of drip irrigation