黄连木五倍子生长特性的研究

STUDY ON GROWTH CHARACTERISTICS OF GALLUNTS ON CHINESE PISTACHE ( Pistacia chinensis Bunge)

通过定点观察黄连木五倍子的生长特性，结果表明，黄连木五倍子的生长发育历期短，４月中下旬至５月上中旬形成，６月中下旬至７月上中旬成熟爆裂，前期生长缓慢，６月上旬左右体积增长迅速。倍子多着生于复叶的第２、４、５、６对小叶上，在小叶上多着生于主脉中段一侧。倍子的大小主要取决于倍子种类和叶片生长情况，而与倍内蚜虫数量多少的相关性不大。

Growth characteristics of gallnuts on Chinese pistache were systematically studied. The results show that the growing period of the gallnuts is short, beginnig from middle and late April to early and middle May, ending from middle and late June to early and middle July. The gallnuts grew very slowly during the early period, but grow quite fast during early June. These gallnuts often set on the 2nd, 4th, 5th and 6th leaflet pairs of the compound leaf. On the leaflet, the gallnuts frequently grew in the middle of the leaf, on one side of the principal vein. The size and weight of these gallnuts were decided primarily by two factors—gallnut kind and the condition of leaf on which the gallnut was growing, but were not quite correlated with the quantity of the aphids in the gallnuts.