Sweet chestnut (Castanea sativa Mill.) is one of the most important species in agro-forestry and horticulture. Turkey is an important C. sativa gene centre and fruit production region. The present study aimed to measure the variations in fruit width, length, thickness and weight in four different natural C. sativa populations in Turkey and determine the loss of fruit traits due to damage by chestnut weevil (Curculio elephas (Gyllenhal, 1836)) (Coleoptera: Curculionidae). Fruits were collected from four populations (Istanbul-Bahçeköy, Çanakkale-Bayramiç, Balıkesir- Erdek and Bursa-Uludağ) of phenotypically healthy sweet chestnut trees, measurements were taken, and the fruits were classified into those damaged by C. elephas and those not. Analysis revealed significant differences among and within the populations in all fruit traits, and between the sound and damaged fruits, with the average fruit width, length, thickness and weight being 24.8 mm, 23.1 mm, 15.3 mm and 3.4 g, respectively. Bursa-Uludağ population had the highest healthy fruit ratio (70%), with some individuals in the population yielding healthy fruits at ratios > 90%. In the Balıkesir-Erdek population, however, where the percentage of damaged fruits was the highest (54%), it was determined that some trees suffered more than 90% damage in contrast to the Bursa-Uludağ population. In the fruits infested by C. elephas, the approximate percentages of loss in fruit width, length, thickness and weight were 6, 4, 7 and 30%, respectively. The fruit weight loss percentages varied between 25% and 32% among the populations.

欧洲栗木（Castanea sativa Mill。）是农林业和园艺业中最重要的品种之一。土耳其是重要的圆叶苜蓿基因中心和水果产区。本研究旨在测量土耳其四个不同的天然C. sativa种群的果实宽度，长度，厚度和重量的变化，并确定由于栗子象鼻虫的损害而导致的果实性状的丧失（Curculio elephas（Gyllenhal，1836））鞘翅目：Curculionidae）。从表型上健康的板栗树的四个种群（伊斯坦布尔-Bahçeköy，Çanakkale-Bayramiç，Balıkesir-Erdek和Bursa-Uludağ）中收集果实，进行了测量，并将果实归类为因C. elephas和那些不是。分析显示，在所有水果性状上，群体之间以及内部的健全和受损果实之间存在显着差异，平均果实宽度，长度，厚度和重量分别为24.8 mm，23.1 mm，15.3 mm和3.4 g。布尔萨-乌鲁达（Bursa-Uludağ）人口的健康水果比率最高（70％），其中一些个体的健康水果比率> 90％。然而，在Balıkesir-Erdek人口中，受损水果的百分比最高（54％），与Bursa-Uludağ人口相比，确定某些树木遭受的损害超过90％。在被线虫感染的果实中，果实宽度，长度，厚度和重量损失的大概百分比分别为6、4、7和30％。在人群中，水果的失重百分比在25％到32％之间变化。