极早熟油桃新品种丹墨、早红珠、早红霞北京南口农场果树科学实验站的科技人员通过几年的努力，选育出极早熟油桃新品种，通过了专家鉴定。俗话说：“物以稀为贵”，在北方果品中，桃子为早熟品种，在其它水果还未成熟时，桃子则先于众果下树上市，而南口农场果树科研站近... Very early maturing new varieties of nectarine Dan Mo, early red beads, Zhaoxia Beijin Beijing Nankou Farm Fruit Science Experimental Station scientists through years of hard work, bred new very early nectarine varieties, passed the expert appraisal. As the saying goes: “Rare things for you”, in the northern fruit, peaches are precocious varieties, other fruits are not yet ripe, the peach is next to the tree under the public fruit, and Nantou farm fruit trees near the research station ...