Dissecting the Genotype × Environment Interaction for Potato Tuber Yield and Components

In the Mediterranean Basin, potato (Solanum tuberosum L.) is a major staple crop, yield performance of which can vary dramatically based on pedo-climatic conditions and genotype. Hence, dissecting genotype × environment interaction (GEI) in this region mandatory for setup high-yielding stable genotypes, also considering its importance local breeding development protected geographical identifications. Therefore, research evaluated marketable tuber (MY) several components five genotypes (Arizona, Generosa, Levante, Paradiso, Vogue) over 4 years (2019, 2020, 2021, 2022) three locations Sicily (Southern Italy) by additive main effects multiplicative interactions (AMMI) + (GGE) biplot analyses. From combined ANOVA emerged high significance GEI, with that provided most considerable extent variation productive traits. The AMMI GGE analyses identified Arizona as best leading studied area virtue productivity (44.5 t ha−1 mean MY) coupled stability, followed Generosa (46.5 ha−1). Ideal environments (location year) were highly dependent trait, but them belonged to Acireale, characterized fertile soils. According our results, approach could be recommended programs commercial cultivation regions, along