碰柑

Seedless or few seed trait is one of the goals of Ponkan breeding. 通过组培方法从374粒椪柑种子培养中获得449株小苗。

Results indicated that exocortis existed in all sweet orange but not in Ponkan orchards. 以酸桔为砧木之甜橙树虽然有鳞砧病存在，但外观仍颇健全；

Liucheng variety had the most melanose susceptibility compared with Ponkan and Tankan. 在关西调查不同种类柑桔之发病，已柳橙较为严重，椪柑、桶柑次之。

Besides, Ponkan, and Wentan Pummelo showed economic efficient in organic fertilizers application, but Tankan and Liucheng appeared ineffective. 其中，椪柑与文旦有机施肥经济与财务效果较佳，但桶柑与柳橙则较差。

The physiological differences among vesicle collapse fruit and granulation fruit and normal fruit of Ponkan mandarin (Citrus reticulata Blanco) were measured in this study. 摘要分析了椪柑萎缩型枯水与粒化型枯水以及正常果的生理差异。