Variety traits
Raphanus sativus L. var. niger (Mill.) S. Kerner
Black radish is classified as a cold-tolerant crop, capable of germinating at +2–4 °C and withstanding frosts down to –3 °C at the seedling stage and up to –5 °C in mature plants.
In the reference 5 varieties crop Black radish, where this is mentioned in the description.
The plant's biological adaptation allows it to be cultivated in temperate climates during early spring and autumn planting periods. An important physiological feature of the crop is the dependency of the transition to the reproductive phase on temperature factors, where the combination of low temperatures and long daylight hours triggers premature bolting.
Despite the resistance of the vegetative leaf rosette to sub-zero temperatures, the formed root vegetables of the black radish remain sensitive to freezing. In agronomic practice, this trait is considered a qualitative characteristic of the species rather than a quantitative parameter requiring a standardized measurement scale.
General information about the subject — on the page Cold tolerance.
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Raphanus sativus L. var. niger (Mill.) S. Kerner · Black radish