Why can synthetic varieties provide farmers with usable seed in later growing seasons?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Synthetic varieties are developed by intercrossing a number of genotypes that have been tested and selected for their superior combining ability—meaning they are known to produce high-performing hybrid results when crossed together.1

Unlike F1 hybrid varieties, which are specifically bred to capture hybrid vigour in a single generation and often require expensive, labor-intensive production processes, synthetic varieties are designed to maintain their performance over time. Because they are composed of a mixture of genotypes that have been proven to work well together, they retain the ability to produce usable seed for succeeding growing seasons. This makes them a particularly favored and economical choice for farmers growing crops such as forage, where the high costs associated with the repeated production of F1 hybrid seed would be prohibitive.12