System of Production of Sugar Beet Seed
Sugar beet are biennial plants. After having developed the root, a storage organ for energy, during the first vegetation year (which is the vegetative development), they need several weeks of cold (vernalization) to incite bolting.††
Bolting is when the plant flowers to produce seeds, which happens in the second vegetation year. During seed production of our hybrids, we use male-sterile seed parents. After pollination with the chosen pollinator for the respective variety, the hybrid seed is harvested from the male-sterile plant, while the pollinator is destroyed before starting the harvest.
In our European seed production regions, we mainly plant for the production of monogerm hybrid varieties.
The two steps of seed production are organized separately: first the production of stecklings during the first vegetation year, and then their transplanting for seed production in the second vegetation year.†