【摘要】 为进一步优化海南荔枝品种结构，充分发挥海南荔枝产区早熟优势，选育和推广早熟荔枝品种，2018年通过高接换种方式在海南省陵水县引种“科技一号”荔枝，以特早熟荔枝“桂早荔”为对照，比较分析两个品种在海南省陵水县的植物学性状、物候期、经济性状以及抗逆性等。结果表明，“科技一号”荔枝果实椭圆形，果皮暗红色，平均单果质量19.4 g,果形指数1.05,平均可溶性固形物含量16.2%,平均可食率63%,部分种子焦核，成熟期2月下旬至3月中旬，比同区域“桂早荔”早15 d左右，是适宜在海南适度种植推广的特早熟荔枝。更多还原

【Abstract】 To further optimize the variety structure of lychee in Hainan, fully utilize the early-maturing advantage of Hainan lychee production areas, breed and promote early-maturing lychee varieties, in 2018, the lychee variety Keji No. 1 was introduced to Lingshui County, Hainan Province by top-grafting. With extremely early-maturing lychee variety Guizaoli as control, the botanical traits, phenological period, economic traits, and stress resistance of these two varieties in Lingshui County, Hainan Province were compared and analyzed. The results showed that the fruit of Keji No. 1 lychee was elliptical shaped, with dark red peel, average single fruit weight of 19.4 g, the fruit type index of 1.05, average total soluble solids content of 16.2%, average edible rate of 63%, and some of seeds aborted. The fruits matured from late February to mid March, about 15 days earlier than Guizaoli in the same region. It is an extremely early-maturing lychee suitable for appropriate planting and extension in Hainan.更多还原