西安市高陵县泾渭枣树研究所，紧盯市场“稀缺”，致力大果型特色鲜枣的研究开发，选育出极晚熟、极耐贮的泾渭大雪枣，单果重３０～８０克，肉厚、脆甜、较一般枣延后３０～５０天上市。该枣能在常温下土法保鲜至１２月下旬，冷库保鲜到春节前后。抓住了“物以稀而贵”的市场? Xi’an City Gaoling County, Institute of Science and Technology, jujube, eyeing the market “scarcity”, is committed to the research and development characteristics of fresh fruit jujube, bred very late, very resistant Jing Jing snow dates, single fruit weight 30 to 80 grams , Flesh, crisp sweet, more general date listed 30 to 50 days. The date can be fresh at room temperature until the end of December, cold storage until around the Spring Festival. Seize the “thin and expensive things,” the market?