疏果对黄皮果实发育着色及树体器官碳水化合物含量的影响

以‘大鸡心’黄皮[Clausena lansium(Lour.)Skeels‘Dajixin']为材料，研究了不同程度疏果对果实发育、着色、产量及树体不同器官碳水化合物含量的影响。结果表明：疏果减少了树体产量，但促进了果实的发育，花后95 d（采收）时，疏果50%和25%处理的果实鲜样质量分别比对照果增加了33.7%和13.9%，疏果有利于果实的着色，同时提高了叶片、1cm粗枝条、结果母枝及果实的总碳水化合物含量。此外，疏果有利于采果后新梢生长，显著增加新梢的长度和粗度。

Effects of Fruit-thinning on Fruits Development, Pigmentation and Carbohy drate Content in Plant Organs of Wampee

The wampee (Clausena lansium (Lour.) Skeels) cultivar 'Dajixin' was used to study the effects of two levels, ie, 50% and25%, fruit-thinning on fruits development, pigmentation and carbohydrate content in plant organs, and non-thinning as control. The main results were as follows. The yields of 50% and 25% fruit-thinning treatment in this trail were decreased in a certain degree, compared with control. But fruit-thinning promoted the development of wampee fruits. At harvest (95 days after anthesis), compared with control, the fresh mass of individual fruit with 50% and 25% fruit-thinning increased by 33.7% and 13.9%, respectively. Fruit-thinning was helpful to the pigmentation of wampee fruits, and increased the total content of carbohydrate in plant organs such as leaves, 1-cm-size stems, fructiferous stems and fruits. In addition, compared with control, fruit-thinning promoted the growth of shoots after harvest, and increased their lengths and diameters significantly.