The advantages are listed below:Self- pollination ensures that recessive characters are eliminated.The wastage of the pollen grain is very less compared to cross-pollination.In the process of self- pollination, the purity of the race is maintained, as there is no diversity in the genes.In self- pollination, there is no involvement of external factors like wind, water, and other pollinating agents.Self-pollination ensures that even a smaller quantity of produced pollen grains from plants have a good success rate in pollination.