温州蜜柑雌雄蕊分化过程及施肥对果实品质的效应

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％。

Differentiation of Pistil and Stamen, and Effect of Fertilization on Fruit Qualty

Differentiation and development of reproduction organs in citrus(Citrus unshiu More, Xinjin'strain) were studied. The results showed that: first primordium of sepal took shape between mid and late October; primordia of pistil and stamen formed in succession in the mid March, next year; and primordium of embryo sac formed in late April. pollen grains were mostly sterile, and most embryo sacs disintegrated by itself before or after blooming. Before application of organic and mineral fereilizer, contents of soluble solid substance,soluble sugar and organic acid were increased to 13.91%,17.51%and 5.80%, respectively. The treatment obviously improved quality of fruit.