近年来 ,由于国产果汁酸度太低 ,出口价格一路下跌 ,而在国际市场上浓缩苹果汁酸度每升高 1度 ,每吨售价可提高 1 0 0～ 1 5 0美元。为提高我国浓缩苹果汁的国际市场竞争力 ,推动高酸苹果产业的发展 ,惠民县科协由山东农业大学、莱阳农学院等大专院校引进大量的高酸苹果品种进 In recent years, due to the low acidity of domestic fruit juices, the export prices have been falling all the way. For every 1 degree increase in the acidity of concentrated apple juice in the international market, the selling price per tonne can be increased by 100-150 U.S. dollars. In order to improve the competitiveness of China’s concentrated apple juice in the international market and promote the development of high-acid apple industry, Huimin County Association for Science and Technology introduced a large number of high-acidified apple varieties from universities such as Shandong Agricultural University and Laiyang Agricultural College