Explanation

Self-pollination When the process of pollination occurs in the same plant, it is called self-pollination. It is of two types (i) Autogamy When pollination takes of place in the same flower of a plant. Here, no pollinating agent is required (ii) Geitonogamy Transfer of pollen grains from anther to stigma of another flower of same plant. Although the geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from the same plant