近年我国荔枝龙眼主产区出现多起果实发育期果实异常现象。小果期和中果期表现为外果皮出现黑褐色斑点,内果皮黑褐色斑块更为明显,严重者果皮开裂,果核坏死。大果期外果皮皱缩凸起,果实畸形变小,内果皮有黑褐色或淡绿色向果肉侵入的痂状物,严重者侵入部位果肉褐变腐烂。不同时期果实异常症状均为内部重于外部。在排除病原物侵染致病前提下,观察对比了异常果和正常果果皮和果核的微观形貌,测试了果实不同部位N、P、K、Ca、Mg和B等矿质元素含量,并调查了果园的管理、施肥及气候情况。初步判断,这些果实异常现象是由不良天气引起的果实缺Ca生理性病害,个别果园缺B也可能是一个共同影响因素。 Litchi longan in recent years, the main producing areas appear more fruit growth abnormal fruit. Small fruit and mid-fruit showed dark brown spots on the outer pericarp, and the dark brown patches on the pericarp were more obvious. In severe cases, the pericarp cracks and the nucleus necrosis. Fruit pericarp shrinkage bulge, fruit deformity smaller, endocarp dark brown or light green to the flesh invade the scab, serious invade parts brown rotting decay. Abnormal symptoms of fruits in different periods are internal than external. Under the premise of eliminating pathogen infection, the micro-topography of abnormal fruit and normal fruit peel and fruit core were observed and compared. The content of mineral elements such as N, P, K, Ca, Mg and B in different parts of fruit were tested. Investigated orchard management, fertilizer and climate conditions. Preliminary judgments, these abnormal fruit is caused by bad weather, lack of physiological Ca physiological diseases, individual orchards lack of B may also be a common influencing factor.