“…Several studies have demonstrated that grafting vegetable crops onto tolerant rootstocks can improve global plant performance and final productivity under different abiotic stress conditions [ 10 , 11 , 13 , 14 , 15 , 16 ]. Particularly, improved growth and yield stability responses mediated by the rootstock under salinity conditions have been described in different vegetable crops, such as tomato [ 17 , 18 , 19 , 20 ], pepper [ 21 , 22 , 23 , 24 ], cucumber [ 25 , 26 ], watermelon [ 27 ], and others [ 28 ]. These rootstock-mediated responses have been associated with a better status of the photosynthetic apparatus and increased sink activity [ 8 , 22 ], regulation of ion homeostasis [ 17 , 20 , 21 , 26 ], and modulation of hormonal balance [ 14 , 17 , 18 , 25 , 29 ].…”