Hybrid seed refers to a seed that is produced by cross-pollination of plants in an artificial way. It needs a lot of scientific research that is why it is so expensive to produce. Companies spend a lot of money on the research and development of these seeds, It also takes a lot of time of their scientists. These factors add on to the price of their production.
Hybrid seeds are produce by the cross fertilization of two species which involve lot of research work and cost. At the same time per hectare yield of hybrid seed is many time higher than the original species.