EMASCULATION IN PLANT BREEDING
Emasculation involves the removal of stamens from bisexual flowers of the female parents in order to avoid self-pollination in these flowers. It is done before the anthers are mature.
If in a condition the female parent bears bisexual flowers, then elimination of anthers from the flower bud before the anther dehisces by means of a pair of forceps (a large instrument with broad blades) is necessary. And this step is known as emasculation.
In a process called bagging emasculated flowers are covered with a bag to prevent contamination of its stigma with unwanted pollen.
However if the female parent produces unisexual flowers, there is no requirement for emasculation.