“串番茄”(Truss tomato)果实主要数量性状的遗传

Inheritance of Main Quantitative Characters in Truss Tomato Fruits

02S02和02S18是“串番茄”育种的好材料,02S35×02S45、02S15×02S51是综合性状优良的组合。单花序果实个数和果实横径性状狭义遗传力较高,在早期世代选择效果明显,单果质量、小区产量等性状遗传力较低,宜在高世代进行选择。相关分析表明,单果质量是串番茄最重要的产量组成因子,单果质量与单花序果实数呈极显著的负相关关系。

The results showed that 02S02 and 02S18 were good materials for 02S35×02S45 and 02S15×02S51 had better representation than other combinations. hN^2 of fruit number per truss and fruit width were higher, so that they should be selected in earlier generations, while hN^2 of per fruit mass and plot yield were lower, so they should be selected in the later generations. Per fruit mass was the most important factor about plot yield, and it has a significant negative correlation with per truss fruit number.