How seed production is done in marigold?

The seed is the best propagating material for annual flowers like marigold. However, due to the lack of scientific information on the seed production of marigold, the large-scale production of seed is limited. Though the seed yield and quality are mainly a genotypic character, it is greatly influenced by the seasons and climatic factors. These influence both vegetative and reproductive phases of the Marigold plant, ultimately leading to variation in performance.