Yield and quality characteristics were determined by genotype and environmental interaction but were not affected by photoperiod.
Broccoli hybrids have been produced by crossing two pure inbred lines, each self-incompatible, but cross-compatible with another one .
Thus, seeds from a particular supplier are produced by crossing their own inbred lines and therefore different varieties should have similar phenotypic characteristics.
Over the last years in Extremadura (Spain), the broccoli cultivated area has increased.
In 2013 the cultivated area reached 1747 hectares, with a total production of 21617 tons of broccoli heads.