Received: 21-12-2022 / Accepted: 04-08-2023
This studywas designed toevaluate the heterosisand general combining ability (GCA) of ten S3purple cherry tomato lines based on the Line×Tester model to select elite parental lines with high combiningability in terms of yield and quality. Ten cherry tomato lines, three testers, thirty crosses,andtwo checks were evaluated based on 11 agronomic traits in 2022 Autumn-Winterseasonin Hanoi under polyhouse. The results showedthat purple tomato varieties can be created by crossing purple tomato lines with purple or red cherry tomato lines. The mid parent and best parent heterosis showed negative values in almost all traits and crosses investigated. D10 hada significant positive GCAeffectformarketable yield. Three lines viz.,D3, D6, and D9 had significant positive GCAeffect fortotal soluble solids content.Two dark purple cherry tomato crosses viz., D10×T3 (38.1 tons/ha, 9.0Brix) and D6×T3 (35.2 tons/ha, 9.8Brix) showedbreeding potential to develop new cherry tomato lines in the next segregation generation