Artificial hybridization is a recent development in the pollination of flowering plants. Generally, pollen grains from the stamen part of the flower is carried by a pollinating agent like the insects to the ovaries of a plant. This process is known as pollination and we can not control what type of pollen grains reach the ovaries from the stamen. But, in the case of artificial hybridization, humans can control which pollen grains are to be moved to the ovaries for reproduction. Incompatibility between the stigma and ovaries of a flower is an issue in commercial farming as in this case, the plant can not actively reproduce. When the pollen grains are transferred to stigma, it accepts only the compatible pollen grains and rejects the incompatible ones. Artificial hybridization is possible in plants through bagging and emasculation techniques. Anthers from a bisexual flower are removed with the help of forceps and this is known as emasculation. The flower is masked with a cover to stop interacting with undesirable pollen grains and this process is called bagging. To know more about emasculation and bagging, refer to the above article.