The hybrids Quercus x hispanica 'Lucombeana' (Quercus cerris x suber) at Mata Nacional do Vimeiro, Portugal@en

This dataset identifies Quercus x hispanica 'Lucombeana' (Quercus cerris x suber) hybrids and their offspring in an experimental field (plots 6 and 21a) at Mata Nacional do Vimeiro, Alcobaça Portugal. This experimental field began to be established in 1930s, by Vieira Natividade, a Portuguese agronomist and forester. In 2019, for the living hybrids, the location (geographic coordinates), female parent identification, sowing year and biometric characterization (total height and breast height diameter) were recorded. In plot 6, there are thirteen trees planted in 1933 from seed obtained in the Cambridge Botanic Gardens in England. A total of 183 living hybrids were installed, between 1961 and 1965, in four different sub-plots from plot 21a: 52, 53, 54 and 55. They are progenies of some of the hybrid mothers initially planted (mother trees 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 14, 15 and 17) from plot 6. In sub-plots 52-54, the plants were initially distributed in lines in a spacing of 2.5 x 2.5 meters, according to their respective mother tree. In sub-plot 55, the last one to be installed (1964 and 1965), the seeds were simply sown in a spacing 0.3 x 0.3 meters without identification of their parent origin.本数据集用于鉴定葡萄牙阿尔科巴萨市维梅罗国家林（Mata Nacional do Vimeiro）试验田（6号样地与21a号样地）内的西班牙栎‘卢科姆纳’（Quercus x hispanica 'Lucombeana'，即Quercus cerris × suber的种间杂种）及其子代。该试验田于20世纪30年代由葡萄牙农学家兼林学家维埃拉·纳蒂维达德（Vieira Natividade）主持始建。2019年，研究人员对园内存活的杂交个体开展了数据采集工作，记录内容包括地理位置（地理坐标）、母本标识、播种年份以及生物特征表征指标（总株高与胸径）。6号样地内定植有13株1933年栽植的实生苗，其种子采自英国剑桥植物园（Cambridge Botanic Gardens）。21a号样地下辖的4个亚样地（52、53、54及55号亚区）于1961年至1965年间共计定植183株存活杂交个体，这些个体均为6号样地初始定植的部分杂交母本（母树1、2、3、4、6、7、8、9、10、11、12、14、15、17）的子代。其中52至54号亚区的植株根据其对应的母本，以2.5×2.5米的株行距呈行列状定植；而最后定植的55号亚区（定植于1964年至1965年）的种子仅以0.3×0.3米的株行距播种，未标注其亲本来源。