Fig. 6

Scatter plots of the general combining ability (GCA) of the male (A) or female (B) parents regressed on the GCA estimates of the female or male parents, where each subset represents a male or female parent for storage root yield (t ha–1, rytha) and SPVD resistance (vir2). These plots were created using the R package ggplot230, version 3.5.1 (https://ggplot2.tidyverse.org/); and stacked using the R package ggpubr31, version 0.6.0 (https://rpkgs.datanovia.com/ggpubr/).