山东省枣庄市薛城区兴农种子公司与薛城园艺研究所合作，通过多年调查研究，从金丝枣中选育出稀世珍品——“薛城无核密枣”。 该品种果核已退化成膜质或革质，果核部位已成空心，食用不吐核，可食率可达１００％；果实近园形，单果重１０克左右，最大达２Ｉ克，果实成熟时为鲜 Zaozhuang City, Shandong Province Xuecheng District Xingnong seed companies and Xuecheng Institute of Horticulture cooperation, through years of research, from the golden dates in breeding rare treasures - “Xuecheng nuclear-free date.” The variety of fruit nuclei have been degraded into membranous or leathery, the nucleus has become hollow core parts, food does not spit nuclear, edible rate of up to 100%; fruit nearly circular, fruit weight 10 grams, up to 2I grams of fruit Fresh when ripe