Abstract Sweet cherry (Prunus avium L.) is a hardy species able to be adapted to various soil and climatic conditions; but its development is hampered by some physical, climatic and physiological constraints. The objective of this work is to study the behavior of 11 sweet cherry cultivars in three experimental sites characterized by different pedo-climatic conditions in the North West of Tunisia (Ain-Draham, Bousalem and Tibar) and to explore the "Genotype -by- environment" interaction to select the most suitable cultivar for the mild wintry climate of North West Tunisia. Six cultivars are of known origins (1 cultivar from Tunisia, 1 cultivar from Germany, 1 cultivar from France and 3 cultivars from Canada) as well as 5 cultivars are of unknown origins. Morphometric measurements were made on the leaves, flowers and fruits. Univariate statistical analyses comparing the obtained means at each experimental site were performed. To study the « Genotype x Environment » interaction (GxE), an inter-site analysis of variance was performed on the common cultivars to both Tibar and Ain-Draham sites. The decomposition of the “GxE” interaction by using Wrike's ecovalence showed that, firstly the French cultivar “Moreau” and secondly the Canadian cultivar “Van”, are the two main cultivars influenced by the environmental conditions for the most studied morphometric characteristics. Multivariate analyses based on cluster analysis and principal component analysis was performed on the mean values ​​of all the measured parameters for the each cultivar-site combinations. Napoleon, Van, Moreau, Stella, Bouargoub, BV9 and BV11 were best adapted cultivars to the climate with mild winter.

中文翻译：

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在突尼斯的多地点试验中测试本地和引进的甜樱桃品种（Prunus avium）的行为和形态特征

摘要 甜樱桃（Prunus avium L.）是一种能适应各种土壤和气候条件的耐寒树种；但它的发展受到一些物理、气候和生理限制的阻碍。这项工作的目的是研究突尼斯西北部（Ain-Draham、Bousalem 和 Tibar）三个具有不同土壤气候条件的试验地点的 11 个甜樱桃品种的行为，并探索“基因型”环境”相互作用，为突尼斯西北部温和的冬季气候选择最合适的品种。6 个品种已知来源（突尼斯 1 个品种、德国 1 个品种、法国 1 个品种和加拿大 3 个品种）以及 5 个品种来源不明。对叶子、花朵和果实进行形态测量。进行了单变量统计分析，比较了每个实验地点获得的平均值。为了研究“基因型 x 环境”相互作用 (GxE)，对 Tibar 和 Ain-Draham 站点的常见栽培品种进行了站点间方差分析。使用 Wrike 生态价对“GxE”相互作用的分解表明，首先是法国品种“Moreau”和其次是加拿大品种“Van”，是受环境条件影响的两个主要品种，用于研究最多的形态特征。对每个品种-地点组合的所有测量参数的平均值进行基于聚类分析和主成分分析的多变量分析。拿破仑、范、莫罗、斯特拉、布阿尔古布、