Question

Meena had grown Rose and China-rose plants in her garden. She collected pollen grains from China-rose plants and sprinkled them on the stigma of the Rose flowers, as she wanted to grow a hybrid variety of Rose.

1. Will this pollination give the desired results? Give a reason for your answer.
2. What is geitonogamy? Why is it considered equivalent to cross-pollination in ecological context and self-pollination in genetic context?

Answer 1

1. No. Rose and China rose are two separate species that do not belong in the same category. Pollen can only fertilise seeds belonging to the same species. As a result, Meena did not receive the desired fertilisation results.
2. Geitonogamy is the transfer of pollen grains from one flower's anther to the stigma of another blossom on the same plant.

   Geitonogamy, such as cross-pollination, involves a pollinating agent. Geitonogamy is a kind of self-pollination in which pollen is transferred from the anther of one flower to the stigma of another on the same plant.