温州蜜柑（兴律品系）两枚萼片原基最早出现于１０月中下旬，翌年３月中旬花瓣原基、雌雄蕊原基相继发生分化，５月上旬花器完成分化。花粉粒大部分不育，开花前后大部分胚囊自行解体。沙囊原基出现于４月下旬。开花前，增施有机肥和全素无机肥，可使果汁中可溶性固形物、可溶性糖和有机酸分别提高１３．９１％、１７．５１％和５．８０％，显著提高果实品质，增产２２．４４％。 Wenzhou tangerine (Xing law strain) two sepals primordium first appeared in late October, the middle of March the following year the petal primordia, pistillate primordia have occurred in the differentiation, floral differentiation completed in early May. Most pollen grains are sterile, most of the embryo sacs are disintegrated before and after flowering. Sandbag primordium appeared in late April. Before flowering, organic manure and vegan inorganic fertilizer increased the soluble solids, soluble sugars and organic acids in fruit juice by 13.91%, 17.51% and 5.80% respectively, significantly improving fruit quality and yielding 22 .44%.