Scientists have discovered that the reason why some radish plants take longer to flower than others is that different copies of certain genes that control flowering time, can interact in complicated ways with each other, leading to differences in plant blooms.
You can read the blog post at https://botany.one/2023/03/from-flowering-related-genes-to-your-plate-the-science-behind-optimizing-radish-yield/
You can read the original research at https://academic.oup.com/aobpla/article/15/2/plac066/7024584