Saffron (Crocus sativus L.) produces the most valuable spice and it has various medicinal, aromatic, and dyeing uses. It is sterile and asexually propagated through progeny corms. Its genetic variability is limited, but an extent of phenotypic plasticity is stated and epigenetically explained. To our knowledge, few studies and limited data are available to identify the performant accession to develop an efficient clonal selection. In this study, a multifactorial design of four Moroccan accessions is considered in two different cultivation sites for three years, with 7440 plants that were individually analyzed. Analysis of variance shows that ‘Agadir melloul’ (L2) accession is significantly qualified as superior in both locations, especially in the second coastal site (S2). Performance scoring and ranking and principal component analysis based on eight quantitative traits confirm the superiority of S2L2 compared with other combinations. Moreover, the number of flowers per mother com trait (NF) showed high phenotypic and genotypic coefficients of variation. This character is very heritable (0.59). This heritability is associated with high genetic advance (11.11) and high genetic advance as a percentage of the mean (1.13). Hence, this key trait is less affected by the environmental variation, and clonal selection can be scored through this character. It is then possible to enhance the mean value of the number of flowers from 9.82 to 20.93 through direct selection among the collection. This study is useful in the choice of performant accessions with the aim of improving saffron productivity.

藏红花（番红花L.）生产最有价值的香料，并且具有多种药用，芳香和染色用途。它是不育的，并通过子代球茎无性繁殖。它的遗传变异性是有限的，但表型可塑性的程度是陈述性的，并在表观遗传学上得到解释。据我们所知，很少有研究和有限的数据可用于确定高性能登录，以开发有效的克隆选择。在这项研究中，在两个不同的种植地点考虑了四个摩洛哥种质的多因素设计，历时三年，对7440株植物进行了单独分析。方差分析表明，'Agadir melloul'（L2）品种在两个地区都具有较高的资格，尤其是在第二个沿海地区（S2）。基于8个定量特征的性能评分和排名以及主成分分析证实了S2L2与其他组合相比的优越性。此外，每个母亲性状（NF）的花朵数量显示出较高的表型和基因型变异系数。此角色非常可遗传（0.59）。这种遗传力与高遗传进展（11.11）和高遗传进展（平均值）的百分比（1.13）有关。因此，该关键特征受环境变化的影响较小，并且可以通过该特征对克隆选择进行评分。然后，可以通过直接从集合中进行选择来将花朵数量的平均值从9.82提高到20.93。这项研究可用于选择性能较高的种质，以提高藏红花的生产力。