西瓜的商品生产在美国与日本等国家已达到较高的水平,其上市商品瓜的大小、成熟度、外观及甜度等均有高度的一致性。相比之下,我国的西瓜生产虽然在品种、栽培技术和单产水平上并不落后,但在商品质量方面的差距较大,从而制约了经济效益的进一步提高。1　影响西瓜品质的因素1.1? The production of watermelon in the United States and Japan and other countries has reached a higher level, the size of its listing of melon products, maturity, appearance and sweetness are highly consistent. In contrast, although China’s watermelon production is not lagging behind in terms of variety, cultivation techniques and yield, the difference in product quality is relatively large, which limits the further improvement of economic benefits. 1 factors that affect the quality of watermelon 1.1?