26. Differentiate between Geitonogamy and Xenogamy.

Ans:

Geitonogamy

1. Geitonogamy is the transfer of pollen to the stigma of another flower of the same plant.

2. Functionally cross-pollination but pollen grains are genetically identical.

3. Examples: maize, corn, etc.

Xenogamy

1. Xenogamy is the transfer of pollen to the stigma of another flower of the different plant.

2. Cross-pollination and pollen grains are genetically different.

3. Examples: squash, broccoli, etc.